HomeMy WebLinkAbout14-181·.-FOR OFFICE ljS ~_ONL Y
CASE NQ: /~ (y/
CITY OF CouJ:O:GE STATION
Home o/Texas A&M Un iversity•
DATE SUBMITTED :------
TIME:
(Check one) 0 Minor
($700)
STAFF : <'r '' ~Vtjt j_
FINAL PLAT APPLICATION
0 Amending
($700)
~Final
($932)
0 Vacating
($932)
0Replat
($932)
Is this plat in the ET J? D Yes [gJ No Is this plat Commercial D or Residential ~
MINIMUM SUBMITTAL REQUIREMENTS:
[8:J $700-$932 Final Plat Application Fee (see above).
D $233 Waiver Request to Subdivision Regulations Fee (if applicable).
[8:J $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee . Fee is
1 % of acceptable Engineer's Estimate for public infrastructure , $600 minimum (if fee is > $600 , the balance is
due prior to the issuance of any plans or development permit).
[8:J Application completed in full . This application form provided by the City of College Station must be used and
may not be adjusted or altered . Please attach pages if additional information is provided .
[8:J Six (6) folded cop ies of plat. (A signed mylar original must be submitted after approval.)
[8:J Two (2) copies of the grading , drainage , and erosion control plans with supporting drainage report.
[8:J Two (2) copies of the Public infrastructure plans and supporting documents (if applicable).
[8:J Copy of original deed restrictions/covenants for replats (if applicable).
[8:J Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate
current within ninety (90) days . The report must include applicable information such as ownership , liens,
encumbrances, etc.
[8:J Paid tax certificates from City of College Station , Brazos County and College Station l.S .D.
D The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not.
NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered
complete . If the mylar is submitted with the final plat application , it shall be considered a submittal for the
preliminary plan project and processed and reviewed as such . Until the mylar has been confirmed by staff
to be correct, the final plat application will be considered incomplete .
Date of Optional Preapplication or Stormwater Management Conference .:..:.M.;..;;a""rc;;.;..h.;__5~2~0....:..1....:..4 __________ _
NAME OF PROJECT 12 at Rock Prairie Phase 1
ADDRESS 3270 Rock Prairie Road West
SPECIFIED LOCATION OF PROPOSED PLAT:
North side of Rock Prairie Road 0. 5 miles west of Wellborn Road I
APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project):
Name Craig Browne E-mail craig@craigbrowne .com
~_;:_=---------------~
Street Address 2801 Earl Rudder Freeway
C ity College Station state Texas Zip Code _7_78_4_5 ___ _
Phone Number 979 . 764. 7653 Fax Number
Re vis ed 4/14 Page 1 of 9
.:
;,.
PROPERTY OWNER'S INFORMAT.'71 (All owners must be identified . Please e::a•ach an additional sheet for multiple
owners):
Name DWS Development -David Scamardo E-mail david@dwsdevelopment.com
Street Address 1289 North Harvey Mitchell Parkway
City Bryan State Texas Zip Code 77803 ------
Phone Number 979-779-7209 Fax Number 979-775-5258
---------------~
ARCHITECT OR ENGINEER'S INFORMATION :
Name Joe Schultz, P.E. -Schultz Engineering LLC E-mail joeschultz84@verizon .net
Street Address 3730 Longmire Drive, Suite A
City College Station State Texas Zip Code 77845 -------
Phone Number 979. 764 .3900 Fax Number 979. 764 .3910 -----------------
Do any deed restrictions or covenants exist for this property? O Yes [gj No
Is there a temporary blanket easement on this property? If so , please provide the Volume ____ and Page No . __ _
Total No . of Lots 51 ------R-0-W Acreage _3_. 0_2_2 ____ _ Total Acreage 9 .223 ----------
Existing use _H_o_rs_e_s ___________ _ Proposed Use Residential ----------------
Number of Lots By Zoning District 51 T 0 I GS I
Average Acreage Of Each Residential Lot By Zoning District:
0.087 I T 0 GS
Floodplain Acreage NIA -----------------------------------
1 s there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? D Yes [8J No
Th is information is necessary to help staff identify the appropriate standards to review the application and will be used to
help determine if the application qualifies for vesting to a previous ordinance. Notwithstanding any assertion made ,
vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law.
Is th is application a continuation of a project that has received prior City platting approval(s) and you are requesting the
application be reviewed under previous ordinance as applicable?
lgJ Yes
D No
If yes , provide information regarding the first approved application and any related subsequent applications (provide
additional sheets if necessary):
Project Name : EQUINOX SUBDIVISION PRELIMINARY PLAN
C ity Project Number (if known):
Date I Timeframe when submitted : JUNE 2014
Rev ised 4/14 Page 2 of 9
6 . r: The proposed development is within an older residential subdivision meeting the criteria in Platting and
Replatting within Older Residential Subdivisions Section of the UDO; or
7 . fi The proposed development contains frontage on a Freeway I Expressway as designated by Map 6 .6,
Thoroughfare Plan -Functional Classification , in the City's Comprehensive Plan .
Detailed explanation of condition identified above:
I 'i
. ----·----.. ---· ------·· ··-----·--· ---·-·· ---·-·------·--------------·---·-__j
NOTE: A wa iver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the
same time by the Planning & Zoning Commission .
Requested Oversize Participation _____________________________ _
Total Linear Footage of
Proposed Public:
2525 Streets
5050 Sidewalks
1152 Sanitary Sewer Lines
1964 Water Lines
1571 Channels
_E!_ Storm Sewers
1600 Bike Lanes I Paths
Parkland Dedication due prior to filing the Flnal Plat:
ACREAGE :
___ No. of acres to be dedicated + $ ____ development fee
___ No. of acres in floodplain
___ No . of acres in detention
---No. of acres in greenways
OR
FEE IN LIEU OF LAND :
__ No . of SF Dwelling Units X $ = $ --------
(date) Approved by Parks & Recreation Advisory Board ----
NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING.
The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are
true, correct, and complete. IF THIS APPUCA TION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE
PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more
than one owner, all owners must sign the application or the power of attorney. If the owner is a company, the application
must be accompanied by proof of authority for the company's representative to sign the application on its behalf. LIEN
HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as
00$rib~?iJJ&rJ
Signature and title Date
Revised 4/14 Page 4 of9
FOR OFFICE USE ONLY
CASE NO.: tl-1-l 9 (
DATE SUBMITTED : Q1 / 1 '0/ l 4-
C ITY OF C OI.J..EGE S TATION
Home a/Texas A&M University•
TIME : \ \ : 2.Q
STAFF : ~/f. ..... IT_,__ _____ _
(Check one) D Minor
($700)
FINAL PLAT APPLICATION
D Amending
($700)
~Final
($932)
D Vacating
($932)
0Replat
($932)
Is this plat in the ET J? D Yes [8] No Is this plat Commercial D or Residential ~
MINIMUM SUBMITTAL REQUIREMENTS:
[8] $700-$932 Final Plat Application Fee (see above).
D $233 Waiver Request to Subdivision Regulations Fee (if applicable).
[8] $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee. Fee is
1 % of acceptable Engineer's Estimate for public infrastructure, $600 minimum (if fee is > $600, the balance is
due prior to the issuance of any plans or development permit).
[8] Application completed in full . This application form provided by the City of College Station must be used and
may not be adjusted or altered . Please attach pages if additional information is provided .
[8] Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.)
[8] Two (2) copies of the grading , drainage , and erosion control plans with supporting drainage report .
[8] Two (2) copies of the Public infrastructure plans and supporting documents (if applicable).
[8] Copy of original deed restrictions/covenants for replats (if applicable).
[8] Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate
current within ninety (90) days . The report must include applicable information such as ownership, liens,
encumbrances , etc .
[8] Paid tax certificates from City of College Station , Brazos County and College Station l.S .D.
D The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not.
NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered
complete . If the mylar is submitted with the final plat application, it shall be considered a submittal for the
preliminary plan project and processed and reviewed as such. Until the mylar has been confirmed by staff
to be correct, the final plat application will be considered incomplete .
Date of Optional Preapplication or Stormwater Management Conference :..:..M:.::ac....:rc::..:..h'-5=-=2:.::0...:..1...:..4 __________ _
NAME OF PROJECT Equinox Subdivision Phase 1
ADDRESS 3270 Rock Prairie Road West
SPECIFIED LOCATION OF PROPOSED PLAT:
North side of Rock Prairie Road 0. 5 miles west of Wellborn Road
APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project):
Name Craig Browne E-mail craig@craigbrowne .com ------------------
Street Address 2801 Earl Rudder Freeway
City College Station state Texas Zip Code _7_78_4_5 ___ _
Phone Number 979 . 764 . 7653 Fax Number
Revised 4/14 Page 1 of 9
...;.....--· -
PROPERTY OWNER'S INFOR
owners):
ON (All owners must be identified . Pie attach an additional sheet for multiple
Name Charles & Mary Turner E-mail diamondt3375@yahoo .com
Street Address 3270 Rock Prairie Road West
City College Station State _0_ex_a_s _____ _ Zip Code 77845 ------
Phone Number 979 . 764 .2967 Fax Number
---------------~
ARCHITECT OR ENGINEER'S INFORMATION :
Name Joe Schultz, P.E. -Schultz Engineering LLC E-mail joeschultz84@verizon .net
Street Address 3730 Longmire Drive, Suite A
City College Station State Texas Zip Code _7_78_4_5 ____ _
Phone Number 979 . 764 .3900 Fax Number 979 . 764 .3910 -----------------
Do any deed restrictions or covenants exist for this property? D Yes [g] No
Is there a temporary blanket easement on this property? If so , please provide the Volume ____ and Page No . __ _
Total No. of Lots 51 ------R-0-W Acreage _3_. 0_2_2 ____ _ Total Acreage _9_.2_2_3 _______ _
Existing Use _H_o_rs_e_s ___________ _ Proposed Use Residential ----------------
Number of Lots By Zoning District 51 I T 0 GS I
Average Acreage Of Each Residential Lot By Zoning District:
0.087 I T 0 I GS
Floodplain Acreage _N_YA _________________________________ _
Is there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? D Yes IX] No
This in formation is necessary to help staff identify the appropriate standards to review the application and will be used to
help determine if the application qualifies for vesting to a previous ordinance. Notwithstanding any assertion made ,
vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law.
Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the
appl ication be reviewed under previous ordinance as applicable?
[8] Yes
D No
If yes, provide in formation regarding the first approved application and any related subsequent applications (provide
additional sheets if necessary):
Project Name : EQUINOX SUBDIVISION PRELIMINARY PLAN
City Project Number (if known):
Date I Timeframe when submitted : JUNE 2014
Rev is ed 4/14 Page 2 of 9
A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable):
Re uested wa ive r to subd iv ision re ulations and reason for same if a licable :
Regarding the waiver request , explain how:
1. There are special circumstances or conditions affecting the land involved such that strict application of the
subdivis ion re ulations will de rive the a licant of the reasonable use of his land .
2 . The waiver is necessary for the preservation and enjoyment of a substantial property right of the applicant.
3. The granting of the waiver will not be detrimental to the public health , safety , or welfare , or inj urious to other
property in t he area , or to the City in administering subd ivision regulations .
4 . The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in
accordance with the provisions of the Unified Development Ordinance .
Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable):
1. [l An alternative pedestrian way or multi-use path has been or w ill be provided outside the right-of-way ;
2. D The presence of unique or unusual topographic , vegetative , or other natural conditions exist so that strict
adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the
purposes and goals of the UDO or the City's comprehensive Plan ;
3. 0 A capital improvement project is imminent that will include construction of the required sidewalk. Imminent shall
mean t he project is funded or projected to commence within twelve (12) months;
4 . D Ex ist ing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I
rural context ;
5 . O When a sidewalk is required along a street where a multi-use path is shown on the Bicycle , Pedestrian, and
Greenways Master Plan ;
Rev ised 4/14 Page 3 of 9
6 . n The proposed development is within an older residential subdivision meeting the criteria in Platting and
Replatting within Older Residential Subdivisions Section of the UDO ; or
7 . n The proposed development contains frontage on a Freeway I Expressway as designated by Map 6 .6 ,
Thoroughfare Plan -Functional Classification , in the City's Comprehensive Plan .
Det ailed explanation of condition identified above:
NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered a t the
same t i me by the Planning & Zoning Commission .
Total Linear Footage of
Proposed Public:
Z 5Z~ Streets
9250 Sidewalks
I 15-Z San itary Sewer Lines
JOJ''f Water Lines
1<71 Channels
'377... Storm Sewers
/6oo Bike Lanes I Paths
Parkland Dedication due prior to filing the Final Plat:
ACREAGE :
___ No . of acres to be dedicated + $ ____ development fee
___ No . of acres in floodplain
No . of acres in detention ---
---No . of acres in greenways
OR
FEE IN LIEU OF LAND :
No . of SF Dwell i ng Units X $ ------= $
(date) Approved by Parks & Recreation Advisory Board ----
NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING.
The applicant has prepared this application and certifies that the facts stated herein and e x hibits attached hereto are
true, correct, a nd complete. IF THIS APPL/CATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE
PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more
than one owner, all owners must sign the application or the power of attorney. If the owner is a comp a ny, the application
must be accompanied by proof of authority for the company's representative to sign the application on its beha lf LIEN
HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as
desc ribed above.
Signature and t itle Date
Rev ised 4/14 Pa ge 4 of 9
CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT
Owner Certification:
1. No work of any kind may start until a permit is issued.
2 . The permit may be revoked if any false statements are made herein .
3 . If revoked , all work must cease until permit is re-issued .
4 . Development shall not be used or occupied until a Certificate of Occupancy is issued.
5. The perm it will expire if no significant work is progressing within 24 months of issuance.
6 . Other permits may be required to fulfill local, state, and federal requirements . Owner will obtain or show
compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP.
7 . If required , Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-
pour) and post construction .
8. Owner hereby gives consent to City representatives to make reasonable inspections required to verify
compliance .
9 . If, stormwater mitigation is required , including detention ponds proposed as part of this project , it shall be
designed and constructed first in the construction sequence of the project.
10 . In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken
to insure that all debris from construction , erosion , and sedimentation shall not be deposited in city streets , or
existing drainage facilities . All development shall be in accordance with the plans and specifications submitted to
and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the
City of College Station shall apply.
11 . The information and conclusions contained in the attached plans and supporting documents will comply with the
current requirements of the City of College Station , Texas City Code, Chapter 13 and associated BCS Unified
Design Guidelines Technical Specifications , and Standard Details. All development has been designed in
accordance with all applicable codes and ordinances of the City of College Station and State and Federal
Regulations .
12 . Release of plans to (name or firm) is authorized for bidding purposes
only . I understand that final approval and release of plans and development for construction is contingent on
contractor signature on approved Development Permit.
13 . I , THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN , AND IN ATTACHMENTS FOR
THE DEVELOPMENT PERMIT APPLICATION , ARE , TO THE BEST OF MY KNOWLEDGE , TRUE , AND
ACCU~RATE . 1 4 ~ } -15° ... l.o t'{
Property Owner(s) Date
Engineer Certification:
1. The project has been designed to ensure that stormwater mitigation , including detention ponds , proposed as part
of the project will be constructed first in the construction sequence .
2 . I will obtain or can show compliance with all necessary Local , State and Federal Permits prior to construction
including NOi and SWPPP. Design will not preclude compliance with TPDES : i.e., projects over 10 acres may
require a sedimentation basin .
3 . The information and conclusions contained in the attached plans and supporting documents comply with the
curr~nt req.uir~ments ol t ~~.of College Station.' Texas City Code, Ch~pter 13 a~d associated BCS Unified
Design Guidelines ~e~~ has been designed in accordance with all applicable codes and ordinances
of the City of Co ~a'tf tt <>a and Federal Regulations.
4 . I, THE ENG.INofR ,.iA'G . 0 A Q,~RTIFY THAT ALL STATEMENTS HEREIN , AND IN ATIACHMENTS
FOR THE DE ~~f..!lJ.fi ••••• f.BM T.1'..b\ PLICATION , ARE, TO THE BEST OF MY KNOWLEDGE , TRUE , AND
ACCURATE.1 ••• m~~r . ~; .. ~.9~~.~~·a:.·r
~ 0 8 9 /~"1
•'fi e "'"
Date
Revised 4/14 Page 5 of 9
-
.,. The following CERTl ~u l TIONS apply to development in Special Flood Hazard Areas.
Required for Site Plans, Final Plats, Construction Plans, Fill/ Grading Permits, and Clearing Only
Permits:*
certify , as demonstrated in the attached drainage study , that the
alterations or development covered by this permit, shall not:
(i) increase the Base Flood elevation ;
(ii) create additional areas of Special Flood Hazard Area;
(iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway
and where the velocity of flow in the Base Flood event is greater than one foot per second . This area can
also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or
areas where the depth of from the BFE to natural ground is 18 inches or greater;
(iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond
the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than
one foot per second without acceptable compensation as set forth in the City of College Station Code of
Ord inances , Chapter 13 concerning encroachment into the Special Flood Hazard Area ; nor
(v) increase Base Flood velocities .
beyond those areas exempted by ordinance in Section 5 .11 .3a of Chapter 13 Code of Ordinances.
Enginee r Date
Initial
D * If a platting-status exemption to this requirement is asserted, prov ide written justification under separate
letter in lieu of certification .
Required for Site Plans, Final Plats, Construction Plans, and Fill/ Grading Permits:
B. I, , certify to the following :
(i) that any nonresidential or multi-family structure on or proposed to be on this site as part of this application is
designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm .
Engineer Date
Additional certification for Floodway Encroachments:
C . I, , certify that the construction , improvement, or fill covered by this
permit shall not increase the base flood elevation . I will apply for a variance to the Zoning Board of Adjustments .
Engineer Date
Revised 4/14 Page 6 of 9
Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate
required).
Residential Structures:
D. I, , certify that all new construction or any substantial improvement
of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an
elevation at least one foot above the Base Flood Elevation . Required Elevation Certificates will be provided with
elevations certified during construction (forms at slab pre-pour) and post construction .
Engineer I Surveyor Date
Commercial Structures:
E. I, , certify that all new construction or any substantial improvement
of any commercial, industrial, or other non-residential structure are designed to have the lowest floor, including all
utilities , ductwork and basements , elevated at least one foot above the Base Flood Elevation
Engineer I Surveyor Date
OR
I, , certify that the structure with its attendant utility , ductwork,
basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities, ductwork,
basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all
areas below the Base Flood Elevation, and shall resist the structural loads and buoyancy effects from the
hydrostatic and hydrodynamic conditions .
Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-
pour) and post construction .
Engineer I Surveyor Date
Conditions or comments as part of approval :
Rev ised 4/14 Page 7 of 9
Existing
~
FINAL PLAT MINIMUM REQUIREMENTS
(ALL CITY ORDINANCES MUST BE MET)
INCLUDING BUT NOT LIMITED TO THE FOLLOWING:
(Requirements based on field survey and marked by monuments and markers.)
~ Drawn on 24 " x 36" sheet to scale of 100' per inch .
~ V icinity map which includes enough of surrounding area to show general location of subject property in
re lationship to College Station and its City Limits . No scale required but include north arrow .
~ T it le Block w ith the follow ing information :
~ Name and address of subdivider, recorded owner, planner, engineer and surveyor.
~ Proposed name of subdivision . (Subdiv ision name & street names will be approved through Brazos
County 911 .)
~ Date of preparation .
~ Engineer's scale in feet.
D Total area intended to be developed .
~ North Arrow .
~ Subdivision boundary ind icated by heavy lines.
~ If more than 1 sheet, an index sheet showing entire subdivis ion at a scale of 500 feet per inch or
larger.
~ A ll applicab le certificat ions based on the type of final plat.
~ Ownership and Dedication
~ Surveyor and/or Engineer
~ City Engineer (and C ity Planner, if a minor plat).
~ Planning and Zoning Commission (delete if minor plat)
~ Brazos County Clerk
D Brazos County Commissioners Court Approval (ET J Plats only)
D If submitting a replat where there are existing improvements , submit a survey of the subject property
showing the improvements to ensure that no encroachments will be created .
D If using private septic systems , add a general note on the plat that no private sewage facility may be
installed on any lot in this subdivision without the issuance of a license by the Brazos County
Health Un it under the provisions of the private facility regulat ions adopted by the Commissioner's
Court of Brazos County , pursuant to the provis ions of Section 21 .084 of the Texas Water Code .
~ Location of the 100-Year Floodplain and floodway , if applicable , according to the most recent available
data .
~ Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data.
~ Matches the approved preliminary plan or qualifies as minor amendments (UDO Sect ion 3.3 .E.2).
The location and description with accurate dimensions , bearings or deflection angles and radii , area , center
angle, degree of curvature , tangent distance and length of all curves for all of the
following : (Show existing items that are intersecting or contiguous with the boundary of or forming a
boundary w ith the subdivision , as well as , those within the subdivis ion).
Proposed
~ Streets. Continuous or end in a cul-de-sac , stubbed out st reets must end into a temp
turn around unless they are shorter than 100 feet.
Public and private R.O .W . locations and widths . (All existing and proposed R.O .W.'s
sufficient to meet Thoroughfare Plan.)
Street offsets and/or intersection angles meet ordinance .
Rev ised 4/14 Page 8 of 9
Ekisting
D
~
~
~
Proposed
D
~
~
~
Alleys .
Easements .
A number or letter to identify each lot or site and each block (numbered sequen ti ally).
Park land dedication/greenbelt area/park linkages. All proposed dedications must be
reviewed by the Parks and Recreation Advisory Board and documentation of their
recommendation prov ided prior to being scheduled for P&Z Commission cons ideration .
~ Co nstruction documents for all public infrastructure drawn on 24" x 36" sheets and properly
sealed by a Licensed Texas Professional Engineer that include the following :
~ Street, alley and sidewalk plans , profiles and sections . One sheet must show the overall
street , alley and/or sidewalk layout of the subdivision . (may be combined with other
utilities ).
Sewer Design Report.
Sanitary sewer plan and profile show ing depth and grades .
overall sewer layout of the subdivision . (Util ities of sufficient
master plan and any future growth areas .)
Water Design Report and/or Fire Flow Report .
One sheet must show the
size/depth to meet the utility
Water line plan showing fire hydrants , valves , etc. with plan and profile lines showing
depth and grades. One sheet must show the overall water layout of the subdivis ion .
(Utilities of sufficient size/depth to meet the utility master plan and any future growth
areas .)
Storm dra inage system plan with contours , street profile , inlets , storm sewer and
dra inage channels , with profiles and sections . Drainage and runoff areas , and runoff
based on 5, 10 , 25 , 50 and 100 year rain intensity . Detailed drainage st ructure design ,
channel li ning design & detention if used . One sheet must show the overall drainage
layout of the subdiv ision .
~ Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E.
~ Letter of completion for public infrastructure or guarantee I surety in accordance with UDO
Section 8 .6 .
~ Dra inage Report with a Technical Design Summary .
~ Eros ion Control Plan (must be included in construction plans).
D A ll off-site easements necessary for infrastructure construction must be shown on the final plat w ith a
volume and page listed to indicate where the separate instrument easements were filed .
Separate instrument easements must be provided in recordable form to the City prior to be ing scheduled
for P&Z Commission consideration .
~ Are there impact fees assoc iated with this development? ~ Yes 0 No
Impact fees must be pa id prior to building permit.
~ W ill any construction occur in TxDOT rights-of-way? D Yes ~ No
If yes , TxDOT permit must be submitted along with the construction documents.
NOTE: 1. We w ill be requesting the corrected Final Plat to be submitted in digital form if available prio r to filing
Rev ised 4/14
the plat at the Courthouse .
2. If the construction area is greater than 5 acres , EPA Notice of Intent (NOi) must be submitted prior to
issuance of a development permit.
Print Fo rm
Page 9 of 9
/rhrou~~1r;xvearj "" TAX CERTIFICATE /ce~~~~~e#j ~. ~-L-. ~\/~~~--~·~~~·~·
Issued By:
KRISTEEN ROE , CTA PH# (979) 361-4470
BRAZOS COUNTY TAX ASSESSOR COLLECTOR
300 E . WM . J BRYAN PKWY
BRYAN , TX 77803
Owner ID: 300277 100.00%
TURNER CHARLES I & MARYE
3270 ROCK PRAIRIE RD W
COLLEGE STATION , TX 77845-5057
Property Information
Property ID : 10538 Geo ID : 000701 -0182-0010
Legal Acres : 21 .8501
Legal Desc: A00070 1, CRAWFORD BURNETT (ICL ), TRACT 182 .1,
21 .8501 ACRES , SER# 1 PTX49 16ATX , HUD#
NTA06223 74
Situs: 3270 ROCK PRAIRIE RD W
OBA :
Exemptions : HS , OV65
For Entities
BRAZOS COUNTY
CITY OF CO LL. STAT.
COLLEGE STATION ISD
EMG SVCS DIST #1
Z REFUND ENTITY
Value Information
Improvement HS :
Improvemen t NHS :
Land HS :
Land NHS :
Productivity Marke t:
Productivity Use :
Assessed Value
20,410
50 ,000
262 ,850
24 ,320
0
0
357 ,580
Current/Delinquent Taxes
This is to certify that, after a careful check of the tax records of this office, the following delinquent taxes , penalties , interes
and any known costs and expenses as provided by Tax Code §33.48, are due on the described property for the following
taxing unit(s):
Year Entity
20 13 COLLEGE STATION ISD
20 13 BRAZOS COUNTY
20 13 CITY OF COLL . STAT .
Totals :
Effective Date: 07/03/2014
Tax Certificate Issued for:
CITY OF COLL. STAT .
BRAZOS COUNTY
COLLEGE STATION ISD
Taxable
327 ,580
282 ,580
327 ,580
Taxes Paid in 2013
661.24
674 .06
1,975 .84
Tax Due
1,975.85
674 06
661 .24
3 ,311.15
Disc./P&I
79 .03
26.96
26.46
132.45
Attorney Fee
0.00
0.00
0.00
0 .00
Total Due if paid by: 07/31/2014
Thi s certificate is issued on real
es.rate onl y. It does not include
mmerals and/or personal property.
SPECIAi, CONJ)TTJONS EXIST ON
THISACCU L '.\ i, SE E BELOW
Total Due
2,054 .88
701.02
687 .70
3,443.60
3 ,443 .60
If applicable, the above-described property has/is receiving special appraisal based on its use, and additional rollback taxes may become
due based on the provisions of the special appraisal (Comptroller Rule 9.3040) or property omitted from the appraisal roll as described
under Tax Code Section 25 .21 is not included in this certificate [Tax Code Section 31.0S(b)].
Pursuant to Tax Code Section 31 .08, if a person transfers property accompanied by a tax certificate that erroneously indicates that no
delinquent taxes , penalties or interest are due a taxing unit on the property or that fails to include property because of its omission from an
appraisal roll , the unit's tax lien on the property is extinguished and the purchaser of the property is absolved of liability to the unit for
delinquent taxes , penalties or interest on the property or for taxes based on omitted property. The person who was liable for the tax for the
ear the tax was im osed or the ro e was omitted remains ersonall liable for the tax and for an enalties or interest.
A tax certificate issued through fraud or collusion is void .
This certificate does not clear abuse of granted exemptions as defined in Section 11.43 Paragraph(1) of the Texas Property Tax Code .
Date of Issue :
Requested By :
Fee Amoun t:
Reference #:
Signature of Autho ri zed Officer of Collecting Office
07/03/2014
SCHULTZ ENGINEERING LLC
10.00
Page : 1OF 1
True Automation, Inc.
RESOLUTIONS ADOPTED BY UNANIMOUS WRITTEN
CONSENT OF DIRECTORS IN LIEU OF REGULAR MEETING
OF
DWS DEVELOPMENT, INC.
We, DA YID W. SCARMARDO, GREG SCARMARDO AND MARK
SCARMARDO, the only members of the Board of Directors of DWS DEVELOPMENT,
INC., a corporation organized under the Texas Business Corporation Act, being the only
members of such Board as presently constituted, do by this writing consent to take the
following actions and adopt the following resolutions:
The following individuals are elected as Officers of the Corporation to serve for one
year and until their successors are elected and qualified:
DA YID W. SCARMARDO President
GREG SCARMARDO Vice-President/Secretary
MARKSCARMARDO Vice-Presidentffreasurer
The next ammal meeting of the Board of Directors shall be held on June 30, 2015.
I direct that this consent be filed with the minutes of the proceedings of the Board of
Directors of the Corporation.
This consent is executed pursuant to Article 9. lO(B) of the Texas Business
Corporation Act and Article VII, Section 1.of the Bylaws of this Corporation which authorize
the taking of action by the Board of Directors by unanimous written consent without a
meeting.
Dated June 30, 2014
MARK SCARMARDO, Director
COMMITMENT FOR TITLE INSURANCE · T-7
ISSUED BY
OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY
SCHEDULE A
Effective Date : June 9, 2014, 07:00 am
Commitment issued June 17, 2014, 08:30 am
l . The policy or policies to be issued are :
a. OWNER'S POLICY OF TITLE INSURANCE (Form T-1)
(Not applicable for improved one-to-four family residential real estate)
Policy Amount: $1,250,000.00
PROPOSED INSURE D: David Scarmardo
b . TEXAS RESIDENTIAL OWNER'S POLICY OF TITLE INSURANCE
ONE-TO-FOUR FAMILY RESIDENCES (Form T-lR)
Policy Amount:
PROPOSED INSURED:
c . LOAN POLICY OF TITLE INSURANCE (Form T-2)
Policy Amount:
PROPOSED INSURED:
Proposed Borrower:
d . TEXAS SHORT FORM RESIDENTIAL LOAN POLICY OF TITLE INSURANCE (Form T-2R)
Policy Amount:
PROPOSED INSURED:
Proposed Borrower:
e . LOAN TITLE POLICY BINDER ON INTERIM CONSTRUCTION LOAN (Form T-13)
Binder Amount:
PROPOSED INSURED:
Proposed Borrower:
f. OTHER
Policy Amount:
PROPOSED INSURED:
2 . The interest in the land covered by this Commitment is: Fee Simple
3. Record title to the land on the Effective Date appears to be vested in:
Charles I. Turner and Mary E. Turner
4 . Legal description of land:
SEE ATTACHED EXHIBIT "A"
Form T-7: Commitment for Title Insurance
GFNo. 31423
Page 1
Continuation of Schedule A GF No . 31423
EXHIBIT"A"
Metes and bounds description of all that certain tract of land lying and being situated in the CRAWFORD BURNETT
LEAGUE, ABSTRACT No. 7, City of College Station, Brazos County, Texas. Said tract being the remainder of a called 22.97
acre tract as described by a Deed to Charles I. Turner and Mary E. Turner recorded in Volume 3331, page 61 of the Official
Public Records of Brazos County, Texas.
Said tract being more particularly described by metes and bounds as follows:
BEGINNING at a 112 inch iron rod found on the Northwest line of Rock Prairie Road marking the South corner of said
remainder of 22.97 acre tract and the East corner of a called 23.00 acre tract as described by a Deed to Henry P. Mayo and
wife, Sandra K. Mayo, recorded in Volume 1253, page 878 of the Official Public Records of Brazos County, Texas.
THENCE: N 47° 44' 50" W along the common line of said remainder of 22.97 acre tract and said 23.00 acre tract, at 1592.89
feet pass a 112 inch iron rod found, continue on for a total distance of 1593.41 feet to the Southeast line of the remainder of a
called 108.88 acre tract as described by a Deed to Heath Phillips Investments, LLC recorded in Volume 9627, page 73 of the
Official Public Records of Brazos County, Texas, for reference a 1/2 inch iron rod found marking the South corner of said
remainder of 108.88 acre tract bears: S 41° 21' 39" W for a distance of 60.12 feet:
THENCE: N 41° 21' 39" E along the common line of said remainder of 22.97 acre tract and said remainder of 108.88 acre
tract for a distance of 741.33 feet to the Southwest line of the Barracks II Subdivision, Phase 101, according to the plat
recorded in Volume 11191, page 123 of the Official Public Records of Brazos County, Texas, for reference a 1/2 inch iron rod
found bears N 38° 03' 26" E for a distance of 0.13 feet;
THENCE: S 49° 58' 35" E along the common line of said remainder of 22.97 acre tract and said Phase 101 for a distance of
562.09 feet to the Northwest line of Buena Vida Subdivision according to the plat recorded In Volume 10140, page 169 of the
Official Public Records of Brazos County, Texas, for reference a 1/2 inch iron rod found bears: N 00° 39' 03" W for a distance
of 0.26 feet;
THENCE: S 41° 27' 23" W along the common line of said remainder of 22.97 acre tract and Buena Vida Subdivision for a
distance of206.39 feet to a 1/2 inch iron rod found marking the most Westerly corner of Buena Vida Subdivision;
THENCE: S 47° 49' 48" E continuing along the common line of said remainder of 22.97 acre tract and Buena Vida
Subdivision for a distance of 721.01 feet to the North corner of a called 0.5693 acre tract as described by a Deed to Diamond T
. Storage, LLC recorded in Volume 7009, page 255 of the Official Public Records of Brazos County, Texas, for reference a 112
inch iron rod found bears: S 42° 20' 10" W for a distance of0.45 feet;
THENCE: along the common line of said remainder of 22.97 acre tract and said 0.5693 acre tract for the following calls:
S 42° 20' 10" W for a distance of 155.63 feet to a fence corner post found marking the West corner of said 0.5693 acre
tract;
S 47° 49' 48" E for a distance of 159.95 feet to a 112 inch iron rod found marking the South corner of said 0.5693 acre
tract;
N 42° 20' 10" E for a distance of 5.63 feet to a 112 inch iron rod set marking the West corner of a called 0.5506 acre
tract as described by said Deed to Diamond T Storage, LLC (7009/255);
THENCE: S 47° 49' 48" E along the common line of said remainder of 22.97 acre tract and said 0.5506 acre tract for a
distance of 160.52 feet to a 1/2 inch iron rod set on the Northwest line of Rock Prairie Road marking the South corner of said
0.5506 acre tract, for reference a 1/2 inch iron rod found on the Northwest line of Rock Prairie Road marking the East corner
of said 0.5506 acre tract bears: N 42° 22' 16" E for a distance of 150.00 feet;
THENCE: S 42° 22' 16" W along the Northwest line of Rock Prairie Road for a distance of 408.23 feet to the POINT OF
BEGINNING containing 21.842 acres of land, more or less.
Form T-7: Commitment for Title Insurance Pagel
.,.
Continuation of Schedule A GFNo. 31423
Note: The Company is prohibited from insuring the area or quantity of the land described herein. Any statement in the above
legal description of the area of land is not a representation that such area or quantity is correct, but is made only for
informational and/or identification purposes and does not override Item No. 2 of Schedule B.
Form T-7: Commitment for Title Insurance Page 3
•'
COMMITMENT FOR TITLE INSURANCE T-7
ISSUED BY
·.OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY
SCHEDULEB
EXCEPTIONS FROM COVERAGE
In addition to the Exclusions and Conditions and Stipulations , your Policy will not cover loss, costs, attorney's fees , and expenses
resulting from :
1. The fellowiAg restrieti•1e eoveAaa.ts of reeord itemized belo•w (We HH:lst either iAsert speeific recording data or delete this
tH<eeptioA):
2. Any discrepancies, conflicts, or shortages in area or boundary lines , or any encroachments or protrusions, or any overlapping
of improvements. Company has approved the current land title survey and upon request, and payment of any
promulgated premium, this item will be amended in the policy(ies) to be issued to read: 'shortages in area'.
3. Homestead or community property or survivorshjp rights, if any of any spouse of any insured. (Applies to the Owner's
Policy only.)
4 . Any t itles or rights asserted by anyone, including, but not limited to, persons, the public, corporations, governments or other
entities ,
a. to tidelands, or lands comprising the shores or beds of navigable or perennial rivers and streams, lakes, bays , gulfs or
oceans, or
b . to lands beyond the line of the harbor or bulkhead lines as established or changed by any government, or
c. to filled-in lands, or artificial islands, or
d. to statutory water rights, including riparian rights, or
e. to the area extending from the line of mean low tide to the line of vegetation, or the rights of access to that area or
easement along and across that area.
(Applies to the Owner's Policy only.)
5. Standby fees, taxes and assessments by any taxing authority for the year 2013, and subsequent years; and subsequent taxes
and assessments by any taxing authority for prior years due to change in land usage or ownership, but not those taxes or
assessments for prior years because of an exemption granted to a previous owner of the property under Section 11.13 , Texas
Tax Code, or because of improvements not assessed for a previous tax year. (If Texas Short Form Residential Loan Policy
of Title Insurance (T-2R) is issued, that policy will substitute "which become due and payable subsequent to Date of Policy"
in lieu of "for the year __ and subsequent years .")
6. The terms and conditions of the documents creating your interest in the land.
7. Ma terials furnished or labor performed in connection with planned construction before signing and delivering the lien
do cu ment described in Schedule A, if the land is part of the homestead of the owner. (Applies to the Loan T itle Policy
Binder on Interim Construction Loan only, and may be deleted if satisfactory evidence is furnished to us before a binder is
issued .)
8. Liens and leases that affect the title to the land, but that are subordinate to the lien of the insured mortgage . (Applies to Loan
Policy (T-2) only.)
9. The Exceptions from Coverage and Express Insurance in Schedule B of the Texas Short Form Residential Loan Policy of
Title Insurance (T-2R). (Applies to Texas Short Form Residential Loan Policy of Title Insurance (T-2R) only.) Separate
exceptions 1 through 8 of this Schedule B do not apply to the Texas Short Form Residential Loan Policy of Title Insurance
(T-2R).
Form T-7: Commitment for Title Insurance Page 4
Continuation of Schedule B GF No . 31423
10. The following matters and all terms of the documents cre ating or offering evidence of the matters (We must insert matters or
delete this exception.):
a. Sixteen foot (16') utility easement along Gandy Road (nka Rock Prairie Road) as shown on Final Plat of
Gandy Road recorded in Volume 352, page 555, Official Public Records of Brazos County, Texas, and as
shown on survey dated February 3, 2014 prepared under the supervision of Brad Kerr, RPLS No. 4502.
b. Aerial electric lines run from the south corner northwest along the property line, then branches out to the
various buildings, as shown on survey dated February 3, 2014 prepared under the supervision of Brad Kerr,
RPLS No. 4502.
c. Property is fenced and cross-fenced; however the perimeter fencing is not exactly on the property lines in
some places, as shown on survey dated February 3, 2014 prepared under the supervision of Brad Kerr, RPLS
No. 4502.
d. This policy does not insure the title to, nor encumbrances against, the mobile homes or manufactured housing
units which are situated on the herein described land. (This exception to be deleted after acceptable evidence
as to the removal of the mobile home(s) from the property.)
e. Easement granted to the City of Bryan, Texas by W.E. Gandy, et ux as set out in instrument dated April 7,
1937, recorded in Volume 98, page 95 of the Deed Records of Brazos County, Texas, and as noted on survey
dated February 3, 2014 prepared under the supervision of Brad Kerr, RPLS No. 4502.
f. Easement granted to the City of Bryan, Texas by Patsy Graham d/b/a Palomino Enterprises as set out in
instrument dated June 2, 1983, recorded in Volume 589, page 635 of the Deed Records of Brazos County,
Texas, and as noted on survey dated February 3, 2014 prepared under the supervision of Brad Kerr, RPLS
No. 4502.
g. Affidavit giving notice of on -site wastewater treatment system, executed by Charles Ivan Turner, dated
October 31, 2003 recorded in Volume 5699, page 171 of the Official Public Records of Brazos County, Texas.
h. Mineral Reservation as set out in deed dated May 13, 1983 from John C. Schmidt and wife, Suzanne Schmidt,
formerly Suzanne Wheeless to Patsy Graham d/b/a Palomino Enterprises, recorded in Volume 580, page 138,
Deed Records of Brazos County, Texas. Title to this Interest not investigated subsequent to date of said
instrument.
i. Mineral Reservation as set out in deed dated November 30, 1998 from Patsy Graham nka Patsy Williamson
to Charles I. Turner and Mary E. Turner, recorded in Volume 3331, page 61, Official Public Records of
Brazos County, Texas. Title to this interest not investigated subsequent to date of said instrument.
j. Affidavit of Non-Production executed by Charles L. Turner and Mary E. Turner dated March 3, 2014 and
recorded in Volume 11920, page 9, Official Public Records of Brazos County, Texas.
I<. Rights of parties in possession.
Form T-7: Commitment for Title Insurance Page 5
COMMITMENT FOR TITLE INSURANCE T-7
ISSUED BY
OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY
SCHEDULEC
Your Policy will not cover Joss, costs, attorneys' fees, and expenses resulting from the following requirements that will appear as
E xceptions in Schedule B of the Policy, unless you dispose of these matters to our satisfaction, before the date the Policy is issued:
1. Documents creating your title or interest must be approved by us and must be signed, notarized and filed for record.
2 . Satisfactory evidence must be provided that:
a. no person occupying the land claims any interest in that land against the persons named in paragraph 3 of Schedule
A,
b . all standby fees, taxes , assessments and charges against the property have been paid,
c. all improvements or repairs to the property are completed and accepted by the owner, and that all contractors,
sub-contractors, laborers and suppliers have been fully paid, and that no mechanic's , laborer's or materialmen 's liens
have attached to the property,
d . there is legal right of access to and from the land,
e. (on a Loan Policy only) restrictions have not been and will not be violated that affect the validity and priority of the
insured mortgage.
3 . You must pay the seller or borrower the agreed amount for your property or interest.
4. Any defect, lien or other matter that may affect title to the land or interest insured, that arises or is filed after the effective
date of this Commitment.
5. We reserve the right to search buyer name in the real property records and make additional requirements, if any, in
the event that the contract for sale is assigned.
Countersigned
Agg~~~and Title Comp~ I _ 1'l J. By~@NU
L /
Form T-7: Commitment for Title Insurance Page 6
COMMITMENT FOR TITLE INSURANCE T-7
SCHEDULED
GFNo. 31423 Effective Date: June 9, 2014, 07:00 am
Pursuant to the requirements of Rule P-21 , Basic Manual of Rules, Rates and Forms for the writing of Title Insurance in the State of
Texas, the following disclosures are made :
I. The following individuals are directors and/or officers, as indicated, of the Title Insurance Company issuing this Commitment
DIRECTORS OF OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY
HARRINGTON BISCHOF DENNIS P . VAN MIEGHEM
JOHN M . DIXON JAMES A. KELLOGG
JAMES HELLAUER RANDE K. YEAGER
ARNOLD L. STEINER CHARLES F. TITTERTON
A. C. ZUCARO LEO E. KNIGHT, JR .
STEVER. WALKER FREDERICKA TAUBITZ
OFFICERS OF OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY
MARK BILBREY, President RANDE K. YEAGER, Chairman and CEO
GARY J. HORN, Executive Vice President MARK M . BUDZINSKI, Executive Vice President
R. WAYNE SHUPE, Executive Vice President PATRICK A. CONNOR, Executive Vice President
CHERYL JONES, Executive Vice President MIKE TARPEY, Vice President, Treasurer
CHARLES KOY ALESKI, Executive Vice President ROBERT J. CHAPMAN, Executive Vice President
STEPHEN C. WILSON, Executive Vice President, Vice DANIEL M. WOLD, Sr. Vice President, Secretary,
Chairman General Council
JOHN A. MAGNESS, Executive Vice President
Shareholders owning, controlling or holding, either personally or beneficially, 10% or more of the shares of Old
Republic National T itle Insurance Company as the last day of the year preceding the date herein above set forth are as follows :
Old Republic National Title Insurance Company-100%, a wholly owned subsidiary of Old Republic Title Insurance Group ,
Inc ., a wholly owned subsidiary of Old Republic International Corporation .
2. The following disclosures are made by the Title Insurance Agent issuing this Commitment: Aggieland Title Company
Owners Directors Officers
Page D. Thornton Page D. Thornton Page D. Thornton, President, Secretary , Treasurer
J . Fred Bayliss Page D. Thornton, Office Manager
Tebbi S. Mayes, Office Co-Manager
3 . You are entitled to receive advance disclosure of settlement charges in connection w ith the proposed transaction to which this
commitment relates. Upon your request, such disclosure will be made to you. Additionally, the name of any person, firm or
corporation receiving a portion of the premium from the settlement of this transaction will be disclosed on the closi ng or
settlement statement.
You are further advised that the estimated title premium• is:
Owner's Policy
Loan Policy
Endorsement Charges
Other
Total
$7,001.00
$0.00
$0.00
$0.00
$7,001.00
Of this total amount: 15% will be paid to the policy issuing Title Insurance Company: 85% will be retained by the issuing Title
Insurance Agent; and the remainder of the estimated premium will be paid to other parties as follows:
To Whom For Services
'The estimated premium is based upon information furnished to us as of the date of this Commitment for Title Insurance. Final
determination of the amount of the premium will be made at closing in accordance with the Rules and Regulations adopted by the
Commissioner of Insurance ."
Form T-7: Commitment for Title Insurance Page7
--------·----------------~~
DELETION OF ARBITRATION PROVISION
(Not applicable to the Texas Residentia l Owner's Policy)
ARBITRATION is a common form of alternative dispute resolution. It can be a quicker and cheaper means to settle a dispute
with your Title Insurance Company . However, if you agree to arbitrate, you give up your right to take the Title Insurance
Company to court and your rights to discovery of evidence may be limited in the arbitration process. In addition, you cannot
usually appeal an arbitrator's award.
Your policy contains an arbitration provision (shown below). It allows you or the Company to require arbitration if the
amount of insurance is $2,000,000 or less. If you want to retain your right to sue the Company in case of a dispute over a
claim, you must request deletion of the arbitration provision before the policy is issued. You can do this by signing this form
and returning it to the Company at or before the closing of your real estate transaction or by writing to the Company.
The arbitration provision in the Policy is as follows :
"Either the Company or the Insured may demand that the claim or controversy shall be submitted to arbitration pursuant to
the Title Insurance Arbitration Rules of the American Land Title Association ("Rules"). Except as provided in the Rules,
there shall be no joinder or consolidation with claims or controversies of other persons. Arbitrable matters may include, but
are not limited to, any controversy or claim between the Company and the Insured arising out of or relating to this policy, any
service in connect ion with its issuance or the breach of a policy provision, or to any other controversy or claim arising out of
the transaction giving rise to this policy. All arbitrable matters when the Amount of Insurance is $2,000,000 or less shall be
arbitrated at the option of either the Company or the Insured, unless the Insured is an individual person (as distinguished
from an Entity). All arbitrable matters when the Amount of Insurance is in excess of $2,000,000 shall be arbitrated only
when agreed to by both the Company and the Insured. Arbitration pursuant to this policy and under the Rules shall be
binding upon the parties . Judgment upon the award rendered by the Arbitrator(s) may be entered in any court of competent
jurisdiction."
SIGNATURE DATE
. *** *~* * . * * * * ***
Commitment for Title Insurance
Issued by Old Republic National Title Insw ·ance Company
TIIE FOLLOWING COMMITMENT FOR TITLE INSURANCE IS NOT VALID UNLESS YOUR NAME AND
TIIE POLICY AMOUNT ARE SHOWN IN SCHEDULE A, AND OUR AUTIIORIZED REPRESENTAIB'E
HAS COUNTERSIGNED BELOW.
· We (Old Republic National Title Insurance Company) will issue our title inswance policy or po licies (the Policy) to You (the proposed insured) upon
payment of the premium and other charges due, and compliance with the require me11ts in Sched ul e B a·nd Schedule C. Ou r Policy will be in the
form approved by the Texas Department oflnslU'ance at the date of issuance, and will insure your interest in the land described in Sched ule A The
.estimated premium for our Policy and applicable endorsements is shown on Schedule D. There may be additional charges such as recording fees,
and expedited delivery expenses .
This Commitment ends ninety (90) days from the effective date, unless the Policy is issued sooner, or fai!w'C to issue the Policy is our fault. Ow·
liability and obligations to you are under the e:qiress terms of this Commitment and end whe n this Commitment expires.
AGGIELAND TITLE COMPANY
3740 Copperfield Dr .. Su ite 101
Bryan , TX 77802
'~·, a;-
Authori. ed Signatory
ORTl'orm 2067
Comrninnenl for lide lnsurauce
Eff<ctivc 11/1/09
OLD REPUBLIC NATI ONAL TJnE INS URANCE COMPANY
A Stoc.t Comp!Jrry
4110 Second Awn11e So11th. MiMeapolis, Mi1U1esota 5S401
(612)371-1117
By President
Secretary
I .
CONDITIONS AND STIPULATIONS
1. If you have actual knowledge of any matter which may affect the title of mortgage covere d by this Commitment, that is not shown in Schedule B,
you must notify us in writing. If you do not notify us in writing, our liability to you is ended or reduced to the extent that yow· failure to notify us
affects . our liability. If you do notify us, or we learn of such matter, we may amend Schedule B, but we will not be relieved of liability already
incmred.
2. Ow· liability is only to you, and others who are included in the defin ition of Jnsw-ed in the Policy to be issued. Our liability is only for actual loss
incurred in your reliance on this Commitment to comply with its requirements or to acquire the interest in the land . Our liability is limited to the
amount shown in Schedule A of this Commitment and will be subject to the following terms of the Policy: Insuring Provisions, Conditions and
Stipulations, E."<ceptions and faclusions .
TEXAS TlTLE INSURANCE INFORMAT10N
Title Insurance insures you against loss resulting form certain risks to
your title.
The Commitment for Title lnsmance is the title insurance company 's
promise to issue the title insurance policy. The Commitment is a legal
docwnent. You should review it carefully to completely understand it
before your closing date.
El seguro de titulo le asegu ra en relaci6n a perdidas resultantes de
ciertos riesgos que pueden afectar el titulo de su propiedad .
El Compromiso para Seguro de Titulo es la promesa de la compaiiia
aseguradora de titulos de emitir la p6liza de seguro de litulo . El
Compromiso es un documento legal. Usted debe leerlo
cuidadosamente y entenderlo completamente antes de la fecha para
finalizar su transacci6n .
Your Commitment for Title In surance is a legal contract between you and us. The Conunitment is not an opinion or report of your title. It is a contract
to issue you a policy subject to the Commitment 's tetms and requirements .
Before issuing a Commitment for Title Jnsmance (the Commitment) or a Title Insurance Policy (the Policy), the Title Insurance Company (the Company)
determines whether the title is insw·able. This determination has already been made. Part of that determination involves the Company's decision to
insure the title except for certain risks that will not be covered by the Policy. Some of these risks are listed in Schedule B of the attached Commitment
as Exceptions . Other risks are stated in the Policy as Exclusions. These risks will not be covered by the Policy. The Policy is not an abstt'act of title nor
does a Company have an obligation to dete1mine the ownership of any mineral interest.
-IVUNERALS AND !VUNERAL RIGHTS may not be covered b)' the Policy . The Company may be unwilling to insure title uuless there is
an exclusion or au exception as to Minerals and Mineral Rights in the Policy. Optional endorsements insuring certain risks involving minerals,
and the use of improvements (excluding lawns, shrubbery and trees) and permanent buildings may be available for purchase. If the title
insurer issues the title policy with an exclusion or exception to the minerals and mineral rights, neither this Policy, nor the optional
endorsements, ensme that the purchaser has title to the mineral rights related to the swface estate .
Another part of the determination involves whether the promise to insure is conditioned upon certain requirements being met. Schedule C of the
Commitment lists these requirements that must be satisfied or the Company will refuse to cover them. You may want to discuss any matters shown
in Schedules B and C of the Commitment with an attorney. These matters will affect y01rr title and your use of the land.
When your Policy is issued, the coverage will be limited b)' the Policy's Exceptions, Exclusions and Conditions, defined below.
-EXCEPTIONS are title risks that a Policy generally covers but does not cover in a particular instance. Exceptions are shown on Schedule
B or discussed in Schedule C of the Commitment. They can also be added if you do not comply with the Conditions section of the
Commitment. When the Policy is issued, all Exceptions will be on Schedule B of the Policy .
-EXCLUSIONS are title risks that a Policy generally does not cover. Exclusions are contained in the Policy but not shown or discussed in
the Commitment.
-CONDITIONS are additional prov1s1ons that qualify or limit your coverage. Conditions iuclude your responsibilities and those of the
Company. They are contained in the Policy but not shown or discussed in the Commitment The Policy Conditions are not the same as the
Commitment Conditions.
You can get a co py of the policy form approved by the Texas Department oflnsurance by calling the Title Insurance Company at 1-888-678-1700 or by
calling the title insurance agent that issued the Commitment. The Texas Department of Insurance may revise the policy form from time to time .
You can also get a brochure that explains the policy from the Texas Department of Insurance by calling 1-800-252-3439.
Before the Policy is issued, you may request changes in the policy. Some of the changes to consider are:
-Request amendment of the "area and boundary" exception (Schedule B, paragraph 2). To get this amendment, you must furnish a survey
and comply with other requirements of the Company. On the Owner Policy, you must pay an additional premium for the amendment. If the
survey is acceptable to the Company lllld if the Company's other requirements are me~ your Policy will insure you against loss because of
discrepancies or conflicts in boundary lines, encroachments or protrusions, or overlapping of improvements . The Company may then decide
not to insw·e against specific boundwy or swvey problems by making special exceptions in the Policy. Whether or not you request
amendment of the "area and boundat'y'' exception, you should determine whether you want to purchase and review a sw-vey if a survey is
not being provided to you .
-Allow the Company to add an exception to "rights of paities in possession." If you refuse this exception, the Company or the title
insurance agent may inspect the property. The Company may except to and not insure you against the rights of specific persons, such as
renters, adverse owners or easement holders who occupy the land. The Company may charge you for the inspection . If you want to make
your own inspection, you must sign a Waiver of Inspection form and allow the Company to add this exception to your Policy.
The entire premium for a Policy must be paid when the Policy is issued. You will not owe any additional premiwns unless you want to increase your
coverage at a later date and the Company agrees to add an Increased Value Endorsement.
Old Republic National Title Insurance Company
400 Second A venue South
Minneapolis, Minnesota 55401 .
**** * * ! OLD REPUBLIC
* * ***
--------------------
Commitment for Title Insurance
Issued through the Office of
NATlO.NAL TlTL.E .lNSURANC.lt C01'-ll'ANY
AGGIELAND TITLE COMPANY
3740 Copperfield Dr., Suite 101
Bryan, TX 77802
9791731-8400
AGGIELAND TITLE COMPANY
Pnvacy Polley Notice
· PURPOSE OP THIS NOTICE
Title v of the Gramm-Leach-Biiiey Ac:t (GLBA) generally prohibits any financial Institution, directly
or through Its affiliates, from sharing nonpubllc personal Information about you with a
nonaffiliated third party unless the institution provides you with a .notice of Its pnvacy policies and
practices, such as the type of Information that It collects about you and the i;:ategorles of persons
or entitles to whom It may be dlsdosed. In compliance with the GLBA, we are providing you . with
this document, which notifies you of the privacy policies an9 practices of . OLD REPUBLIC
NATIONAL TITLE INSURANCE COMPANY AND AGGIELAND TITLE.
We may collect nonpubllc personal Information about you from the following sources:
Information we receive from you such as on applications or other forms.
Information about your transactions we seaJre from our flies, or from our afflllates or
others.
Information we receive from a consumer reporting agency.
Information that we receive from others Involved in your transaction, such as the real
·estate agent or lender.
Unless It ts speclflcally stated otherwise In an amended Privacy Polley Notice, no addltlonal
nonpublic personal Information wlll be collected about you, ·
We may disclose any of the above information that we collect about our customers or former
customers to our afflllates or to nonafflllated third parties as permitted by law. ·
We also may disclose this Information about our customers or former customers to the following
types of nonafflllated companies that perform services on our behalf or with whom we have joint
marketing agreements:
Financial service providers such as companies engaged in banking, consumer finance,
securities and Insurance.
Non.-flnancral companies such as envelope stuffers and other fulfillment service providers,
WE DO NOT DISCLOSE ANY NONPUBLIC PERSONAL INFORMATION ABOUT YOU WITH ANYONE
FOR ANY PURPOSE THAT IS NOT SPECIFICALLY. PERMIHED BY LAW.
I
We restrict access to nonpublic personal Information about you to those employees who need to
know that information in order to provide products or services to you. We maintain physical,
electronlc, and procedural safeguards that comply with federal regulations to guard your personal
Information.
• ••
; ~ • • OLD REPUBLIC
.If 'ft • tialbr'l•I Tiit lnlUl'll'C• Comp.In, ...... ,..
~_.,,,. __ ""'""----------:C:ITY OF COILEGE STATION Home of Texas A&M University • ~
,..,,....,_-~~
MEMORANDUM
DATE : September 11 , 2014
TO: Craig Browne , via: craig@craigbrowne .com v/
FROM : Mark Bombek, Staff Planner
SUBJECT: EQUINOX SUBDIVISION PHASE 1 (FP)
Staff reviewed the above-mentioned final plat as requested. The following page is a list of staff
review comments detailing items that need to be addressed. Please address the comments and
submit the following information for further staff review and to be scheduled for a future Planning
& Zoning Commission meeting:
One (1) 24 "x36 " copy of the revised final plat;
Thirteen (13) 11 "x17" copies of the revised final plat;
Five (5) copies of the revised construction documents
One (1) copy of the engineering cost estimate and;
One (1) copy of the digital file of the final plat on diskette or e-mail to
pdsdigitalsubmittal@cstx.gov.
Upon receipt of the required documents for the Planning & Zoning meeting , your project will be
considered formally filed with the City of College Station . Please note that this application will
expire in 90 days from the date of this memo , if the applicant has not provided written response
comments and revised documents to the Administrator that seek to address the staff review
comments contained herein . If all comments have not been addressed your project will not be
scheduled for a Planning & Zoning Commission meeting . Your project may be placed on a
future agenda once all the revisions have been made and the appropriate fees paid. Once your
item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at
the following web site on Monday the week of the P&Z meeting .
http://www.cstx .gov/pz
Please note that a Mylar original of the revised final plat will be required after P&Z approval and
prior to the filing of the plat. If you have any questions or need additional information , please call
me at 979 .764 .3570 .
Attachments: Staff review comments
PC: Charles & Mary Turner, via: diamondt3375@yahoo .com
Joe Schultz , P.E., Schultz Engineering , via : joeschultz84@verizon.net J
P&DS Project No . 14-00900181
Planning & Development Services
P.O . BOX 9960 • J 10 1 T EXAS AVENU E · COLLE G E STATI ON ·T EXAS · 77842
TEL. 979 .76 4.j 570 . FAX. CJ /9.76 4.5 4 %
cstx.gov/devservices
STAFF REVIEW COMMENTS NO. 2
Project: EQUINOX SUBDIVISION PH 1 (FP) -14-00900181
PLANNING COMMENTS NO. 2
1. No comments
Reviewed by: Mark Bombek Date : September 10, 2014
ENGINEERING COMMENTS NO. 2
2 . Sorry for the confusion on the first set of comments . Note 4 on construction sheet 3/16
should say :
PAVEMENT STRUCTURE FOR TOWERS PARKWAY SHALL BE AS FOLLOWS:
6" LIME STABILIZED SUBGRADE OR CEMENT STABILIZED SUBRADE AS
REQUIRED BY SOIL P.I.
5" HMAC BASE OR 8" CRUSHED LIMESTONE BASE MATERIAL
2" HOT MIX ASPHAL TIC CONRETE
Please fix and update cost estimate reflecting this .
3 . Please fix culvert details on construction sheet 10/16. The units shown on the cross section
detail are in feet.
4 . Confirm that all the flow from Bueda Vida & Williamsgate Phase 1 subdivision have been
taken into account in the Sewer report .
5. Define the cross drainage swale between the lots and lead the concentrated flow under the
sidewalk .
6 . Please grade outfall of emergency spillway of the Detention Pond 2 away from existing
homes .
7. Appendix B3 for Addendum to Drainage Report is showing the concrete flume slope as
75%. The slope typo seem to have no effect to the ith-year storm calculations. Is this cell not
linked to the flow calculation? Please double check and fix .
8. Double check engineering estimate for street construction items. Subtotal do not match on
page 1 and 4 .
Reviewed by : Kevin Ferrer Date : September 9 , 2014
' ... ·-.
DATE :
TO :
FROM :
rd'
CrTY OF Cm.LEGE STATION~-----------------Home of Texas A&M Uni versity • fl
$1 ---
MEMORANDUM
August22, 2014
Craig Browne , via : craig@craigbrowne .com a/'
Mark Bombek , Staff Planner
SUBJECT: EQUINOX SUBDIVISION PHASE 1 (FP)
Staff reviewed the above-mentioned final plat as requested . The following page is a list of staff
review comments detailing items that need to be addressed . Please address the comments and
submit the follow ing information for further staff review and to be scheduled for a future Planning
& Zoning Commission meeting :
One ( 1) 24 "x36 " copy of the revised final plat ;
One (1) 24 "x36 " grading and erosion control plan ;
Th irteen (13) 11 "x17" copies of the revised final plat ;
Parkland Dedication in the amount of $64 ,311 must be submitted prior to the
filing of the final plat;
Easement Dedication Sheet for Temporary Turnaround ;
One (1) Mylar original of the revised final plat (required after P&Z approval); and
One (1) copy of the digital file of the final plat on diskette or e-mail to :
pdsdigitalsubmittal@cstx .gov.
Upon receipt of the required documents for the Planning & Zoning meeting , your project will be
considered formally filed with the City of College Station. Please note that if all comments have
not been addressed your project will not be scheduled for a Planning & Zoning Commission
meeting . Your project may be placed on a future agenda once all the revisions have been made
and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the
agenda and staff report can be accessed at the following web site on Monday the week of the
P&Z meeting .
http ://www .cstx .gov/pz
Please note that a Mylar original of the revised final plat will be required after P&Z approval and
prior to the filing of the plat. If you have any questions or need additional information , please call
me at 979 . 764 .3570 .
Attachments : Staff Review Comments
PC : Charles & Mary Turner, via : diamondt3375@yahoo.com
Joe Schultz , P.E., Schultz Engineering , via: joeschultz84@verizon.net
P&DS Project No . 14-00900181
Planning & D et1eloprn ent S er vi ces
P .O . BOX 996 0 · 1101 TEXAS AVEN UE · COLLEGE STATION · T EXAS · 77842
T EL 97 9.76 4.3 570 ·FA X. 979.764.34 96
cstx.gov Id evservi ces
STAFF REVIEW COMMENTS NO. 1
Project: Equinox Subdivision Ph 1 (Fp) (14-00900181)
PLANNING
1. Please correct the label for Rock Prairie Road to read as Rock Prairie Road W.
2 . Please include the Common Area Acreage in the Title Block .
3. Please insert the proper scale range in the Title Block . Scale range should be 1 "=40 '
4 . Please note that any changes made to the plans , which have not been requested by the
City of College Station , must be explained in your next transmittal letter and "bubbled " on
your plans . Any addit ional changes on these plans that the City has not been made aware of
will constitute a completely new review.
5. Please note that you may be required to subm it paid tax certificates if they are not current
prior to the filing of your plat.
6. The construction documents and reports are still under review and may affect the plat.
7. Please be aware that each lot will be required to provide a minimum of two (2) trees of at
least two inches (2") in caliper or one ( 1) tree of four inch ( 4") caliper per Ordinance No .
3222 .
Reviewed by : Mark Bombek , Staff Planner Date : 08/21/2014
ENGINEERING COMMENTS NO. 1
1. Please label existing pavement widths of Rock Prairie Road & Kate Ln on Final
Plat.
2 . Please fix the following street name Sophies Lane, street is shown as
Summerway Drive on Preliminary Plat.
3 . Please provide a temporary turn around with temporary access easement at the
end of Papa Bear Drive on Final Plat.
4 . Please use updated FEMA Maps April 2, 2014 when determining if property lies
within the 100-year floodplain, and update your note reflecting this .
5. Please provide adequate Private Drainage Easement reflecting the construction
grading plan on all Blocks on Final Plat. Also, please change Public Drainage
easement between lot 6 & 5 on Block 1 to Private Drainage Easement.
Additionally, change Public Drainage easement between lot 10 on block 1 &
Diamond Storage Property to Private Drainage Easement.
6 . Please add one of the following notes to the Final Plat:
a. Private drainage easement to be maintained by individual lot owners .
Fences, grading, and landscape cannot impede the flow of the private
drainage easement.
b. Private drainage easement to be maintained by HOA. Fences , grading ,
and landscape cannot impede the flow of the private drainage easement.
7 . Tie a corner of the property to a City of College Station horizontal control
Monument on the Final Plat.
8 . Please add a note on Final plat specifying that the area is in Impact fee area ,
Steeplechase-Wellborn .
9 . Please fix note 4 on construction sheet 3/16 . "6 " Crushed Limestone Base
material " should be 8".
10 . Please add TW to the Legend on sheet 7/16 of the construction plans .
11. Please verify Storm sewer pipe 101 slope . Construction sheet 8/16 shows pipe
101 slope as 1.80%, while on Appendix B4 of the Drainage Report pipe 101
slope is shown as 2.25%.
12 . Please fix Drainage Report. Combined Outfall on table Runoff Flow Direction 2
does not add up. Fix the Freeboard column on Table 3 . Please answer questions
on Part 4 Appendix D pg.20 of 26 . Please confirm the 100 year flow for Detention
Pond 1, summary table shows 6 .9 while the Hydrograph is showing 7 .03 .
13 . Please confirm that Detention Pond 1 's outflow to Rock Prairie Road drainage
swale has adequate armoring.
14 . Please provide the flow depth and velocity at mid-block cross drainage valley
gutter , and cross lot drainage swale .
15. Please Justify and explain how the flow in the Private Drainage on all Blocks is
being discharge to the street.
16 . Please fix , the drainage along Block 1 adjacent to Buena Vida Subdivision. It
seems to flow into the rear lot of Buena Vida Subdivision .
17 . Please confirm that existing structures on Diamond Storage property is not
adjacent to the proposed drainage swale .
18 . Please verify that the elevation of Diamond Storage property adjacent to
Detention Pond 1 & common area is at least 327 feet. If not please provide a 327
feet high Berm along Detention Pond 1 & common area adjacent to Diamond
Storage property.
19 . The proposed street intersection does not meet the "dried up " guideline , please
provide additional justification.
20 . Please define the flow path for emergency spillway of Detention Pond 2. In the
future development of Phase 2 , what's the orientation and flow path for the
emergency Spillway of Detention Pond 2?
21. Please redesign concrete flume 1 & 2 in such a way that the flow through the
channel is sub-critical flow . Design flow depth must be greater than critical depth .
Also please label each concrete flume uniquely on the construction plan.
22 . Please base culvert des ign on TxDOT minimum details, or provide a structural
analysis with justification of the proposed box culvert .
23 . Please verify and place note on the plan that water services will be left between 2
feet and maximum of 3 feet deep at the point of terminus by developer's
contractor. Also note that a ball valve is required at the point of terminus .
24 . Please provide adequate Public Utility easement on Block 1 Lots 9 & 10 in such
a way that the centerline of the sewer lines are no closer than 5.5 feet to the
edge of easement, and that the wyes do not pass the easement.
25 . Please Note that the existing sewer line on Kate Lane is 6''. Please fix the
construction plans & Sewer report reflecting this . Please provide documentation
that the existing 6 " line through Buena Vida Subdivision has sufficient Capacity to
serve the increase flow from Equinox Subdivision .
26 . Please fix the Stationing for Sewer Line S-3. The stationing on profile are not
match ing the plan .
27 . Due to the depth of Sewer Line S-3 & S-2 , we would requi re an additional 5 feet
easement totaling to 15 feet Public Utility Easement on all the lots adjacent to
these sewer lines .
28 . Sewer Line 3 from Stationing 3+32 to Stationing 4+50 does not meet B/CS
minimum slope, please provide justification .
29. Provide a typical layout detail of water meter, cleanout , and transformer. To ensure that
adequate fits within proposed easement when you include other private utilities . Please
confirm w ith BTU.
30 . Please provide Street Sign table . If you have not received block ranges , contact Robin
rkrause@cstx .gov.
31 . Should there not be a streetl ight on Towers Parkway and Rock Prairie Road?
32 . Please remove ADA crossing ramps for Towers Parkway next to Sophies Lane .
33 . On block 3 , the finish floor elevation for the lots seems to be the same elevat ion as the
top of Kat ie Lane 's pavement. We recommend to raise the finish floor elevat ion by at
least 6 ".
Reviewed by : Kevin Ferrer Date : August 19 , 2014
FIRE
1) No more than thirty (30) dwelling units without two points of egress .
Reviewed by : Steve Smith Date : 08/11/2014
SANITATION
1. Sanitation is ok with this project.
Reviewed by : Wally Urrutia Date : August 12 , 2014
MEMORANDUM
DATE : August 8, 2014
TO : Craig Browne , via: craig@craigbrowne .com V
FROM : Mark Bombek, Staff Planner
SUBJECT: EQUINOX SUBDIVISION PHASE 1 (FP)
Thank you for the submittal of your Final Plat -Residential application. Jason Schubert,
Principal Planner, Kevin Ferrer, Graduate Civil Engineer, and I have been assigned to review
this project. It is anticipated that the review will be completed and any staff comments returned
to you on or before Friday , August 22 , 2014 . If you have questions in the meantime , please feel
free to contact us .
PC : Charles & Mary Turner, via : diamondt3375@yahoo.com I
Joe Schultz, P.E ., Schultz Engineering , via: joeschultz84@verizon.net
P&DS Project No . 14-00900181
Pla11ning & Development S ervices
P.O. BOX 9960 • 110 1 TEXAS AVENUE · COLLEGE STl\Tl ON ·TEXAS • 77842
TEL. 97 9 .764 .. ?570 ·FAX . 979.764.3496
cst11.gov/dev serv ices
TO :
FROM :
CITY OF C o 1.L r·:GE STAT IO N
Home of Texas A &M Unive rsity •
MEMORANDUM
Craig Browne , via : craig@craigbrowne.com
Jason Schubert, Principal Planner
SUBJECT: EQUINOX SUBDIVISION PHASE 1 (FP)
I reviewed the above-mentioned Final Plat -Residential application and determined it to be
incomplete. The following is the preliminary list of items needed to complete the submittal.
Please submit the following information so this application can be forwarded for review :
In accordance with the requirements for processing applications , the
Preliminary Plan for this project has not been approved by the Planning &
Zoning Commission to enable this application to be forwarded for review .
Please be aware that if this application is not completed before Monday, September 15, 2014 , it
will expire and a new application and fees will be necessary to continue the platting process .
If you have any questions or need additional information , please call me at 979 .764 .3570 .
PC : Charles & Mary Turner, via : diamondt3375@yahoo.com
Joe Schultz, P.E., Schultz Engineering , via : joeschultz84@verizon.net
P&DS Project No. 14-00900181
Planning & Development Se1·vices
l'.l). HOX 9%0 • I I 0 I TEXA\ WEN UE • COLLE(;[ STATJO N • TEXA\ • 77 842
J'EL. 9 7 9 .7 (11.35"'0 ·FAX. 9 7 9 .7(1-1 .. 14%
cstx.gov/devservices
September 11 , 2014
MattBombek
Staff Planner
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: Equinox Subdivision Phase 1-14-00900181
Dear Mr. Bombek:
Office: 979 .764.3900
Fa x : 979 .764 .3910
Attached are 5 sets of revised construction documents , 1-24"x36" copy of the
re vised erosion & control drawing, 1-24"x36" copy of the revi sed Final Plat, 13-
11 "x17 " copies of the revised Final Plat, 1 copy of the revised engineer 's estimate
and the response to staff comments .
If you have any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
P.O . Box 11995 • College Station , Texas 77842
schultzengineeringllc.com
C ITY OF C OLLEGE STAT ION
Home o/Texas A&M University"
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
[8] Existing Project Submittal. Case No .: 14-00900181
Project Name EQUINOX SUBDIVISION -Ph 1
Contact Name JOE SCHULTZ P.E. Phone Number 979-764-3900
~~~~~~~~~~~~~
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan . D Development Permit
~ Final Plat \ \'(.t1 (lo) 2J·-l )(.3ep( 1 ') D Development Exaction Appeal
D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D Site Plan [8] Grading Plan 2..4 )05 G, ( l )
D Special District Site Plan D Other -Please specify below
D Special District Building I Sign
D Landscape Plan
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment
D TxDOT Driveway Permit
D TxDOT Utility Permit
D
D
Drainage Letter or Report
Fire Flow Analysis
Special Instructions:
10/10
[8] Waterline Construction Documents )S [8] Sewerline Construction Documents
[8] Street Construction Documents
D Easement Application
D Other -Please specify
Print Form
~hultz Engin e er ing , LLC
September 12 , 2014
MattBombek
Staff Planner
City of College Station
1101 Tex as Avenue
College Station, TX 77840
Re: Equinox Subdivision Phase 1 -14-00900181
Dear Mr. Bombek:
Office: 979 .764 .3900
Fax : 979 .764 .3910
Attached i s a revised Final Plat application ownership page, an authority to sign for
DWS Dev elopment, Inc. and a check in the amount of $7 ,751.13 for the
Development Permit Fee.
If you hav e any questions , please do not hesitate to call.
Sincerel y,
Schultz Engineering, LLC.
P.O. Box 11995 • College Station , Texas 77842
schu ltzengineering ll c .com
CITY OF C OLLEGE STATION
Home o/Texas A&M Univers ity"
. FOR OFFICE USE ONLY
CASE NO .: 1L1 -L9 r
DATE SUBMITTED : oq [ 12--J 1g
TIME: ~W
STAFF : ?CJ'
~~------~
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
Existing Project Submittal. Case No.: 14-00900181
Project Name EQUINOX SUBDIVISION -Ph 1
Contact Name JOE SCHULTZ P.E. Phone Nu mber""'9"--79'--""""7-'--64"----"-39"-0"-'0'----------
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan D Development Permit
D Final Plat D Development Exaction Appeal
D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D Site Plan D Grading Plan
D Special District Site Plan ~ Other -Please specify below
D Special District Building I Sign Development Permit Fee
D Landscape Plan Revised Ownership sheets
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
10/10 Print Form
City of College Station
Administrative Approval for Required Parkland Dedications of Less than Five Acres
1. Applicant Name: ______________ C_ra_i~g_B_ro_w_ne _________________ _
Address: ______________ 2=8~0~1~E=a~rl~R~u~d~d=e~r~F~re~e~w~a~y ______________ _
Phone: ____ ___,9'--'-7=9-'-7-=6-=4-'-7-=6'-"5-=3 _____ _ E-Mail: _____ ---=c"'""ra=ig"'"'@=-=c..:...:ra=i=gb=r-=o-"w'"'-n=e..:...:.c=-=o:..:..:m'-'-------
2. Development Name: ______ ~1=2-=a~t~R~o-=c~k~P~r=ai""'ri=e~P~h~a=s=e_1'-------Project #: __ ----'1'--'4'--1"'""'8~1,__ __
Development Location: 3270 Rock Prairie Road West, located west of Buena Vida and South of the Barracks II
3. Dwelling Units: ___§_1_ Single Family ___ Multi-family Units , located in Neighborhood Park Zone _1-'-'5,____
__§j__ Single Family Multi -family Units, located in Community Park Zone B
4. Development Fees and Dedication Requirements:
a. Land Dedication or Fee in Lieu of Land (Choose One):
Neighborhood Community
Single Family : One (1) acre per 117 DU 's ____ ac One (1) acre per 128 DU 's ___ ac = ______ ac
Multi -family : One (1) acre per 117 DU 's ____ ac One (1) acre per 128 DU 's ___ ac = ______ ac
TOTAL = ------Acres
-OR-
Fee Paid in Lieu of Land Dedication
Neighborhood Community
Single Family :51@ $274 .00 per DU $ __ 1_3~9_7_4_ @$250 .00 per DU $_~12~7~5~0_ = $ __ =2~6 ~7=24~_
Multi-family : @ $274 .00 per DU $ ____ _ @ $250.00 per DU $ ____ _ = $ ____ _
TOTAL (Neighborhood and Community) = $_--=2=6'-'-7=24-'---
b. Development Fee:
Neighborhood Community
Single Family 51@ $362 .00 per DU $ 18 462 Single Family@ $375.00 per DU$ 19 ,125 = $ 37 587
Multi-family @ $362 .00 per DU $ ___ _ Multi -family@ $750 .00 per DU $ __ _ =$ __ _
TOTAL (Neighborhood and Community) = $ 37,587
5. Comments: There are 51 townhouse lots and 0 single-family lots in this phase.
The City of College Station agrees to accept:
GRAND TOTAL (Neighborhood and Community) 51 Units x $1,261 = $ 64 311
Land Dedication _N"""'"o_n_e ______ _
·~
Name Date
STAFF REVIEW COMMENTS NO. 1
Project: Equinox Subdivision Ph 1 (Fp) (14-00900181)
PLANNING
1. Please correct the label for Rock Prairie Road to read as Rock Prairie Road W.
The label has been changed.
2. Please include the Common Area Acreage in the Title Block.
The total common area acreage has been added to the title block. Also, the
individual acreage of the 2 common areas has been added to the plan view.
3. Please insert the proper scale range in the Title Block. Scale range should be 1 "=40'
The title block has been revised.
4. Please note that any changes made to the plans, which have not been requested by the
City of College Station, must be explained in your next transmittal letter and "bubbled" on
your plans . Any additional changes on these plans that the City has not been made aware of
will constitute a completely new review.
Noted.
5. Please note that you may be required to submit paid tax certificates if they are not current
prior to the filing of your plat.
Noted.
6 . The construction documents and reports are still under review and may affect the plat.
Noted.
7. Please be aware that each lot will be required to provide a minimum of two (2) trees of at
least two inches (2") in caliper or one (1) tree of four inch (4") caliper per Ordinance No .
3222.
Noted. Note 13 is on the final plat
ENGINEERING COMMENTS NO. 1
/. Please label existing pavement widths of Rock Prairie Road & Kate Ln on Final Plat.
The pavement widths are now labeled on the Final Plat and on the
construction documents. ,I. Please fix the following street name Sophies Lane, street is shown as Summerway
Drive on Preliminary Plat.
The street names now match the Preliminary Plat.
~ Please provide a temporary turn around with temporary access easement at the end
of Papa Bear Drive on Final Plat.
The construction plans now show a temporary turn around at the end of
Papa Bear Drive. Also, a temporary access easement is shown at the end
of Papa Bear Drive on the Final Plat. The addition of a temporary
turnaround made it necessary to extend Pipe 200. Appendix B4 was
updated to reflect this change. The additional base material and the
additional pipe is reflected in the attached revised Engineer's Estimate.
/( Please use updated FEMA Maps April 2, 2014 when determining if property lies
within the 100-year floodplain, and update your note reflecting this.
The FEMA flood information has been updated.
Y. Please provide adequate Private Drainage Easement reflecting the construction
grading plan on all Blocks on Final Plat. Also , please change Public Drainage
.. easement between lot 6 & 5 on Block 1 to Private Drainage Easement. Additionally,
change Public Drainage easement between lot 10 on block 1 & Diamond Storage
Property to Private Drainage Easement.
Private Drainage Easements have been added between the lots at various
locations. The Public Drainage Easements between Lots 6 & 5, Block 1 and
adjacent to the diamond storage property have both been changed to
Private Drainage Easements.
,fa'. Please add one of the following notes to the Final Plat:
a. Private drainage easement to be maintained by individual lot owners . Fences ,
grading, and landscape cannot impede the flow of the private drainage easement.
b. Private drainage easement to be maintained by HOA. Fences, grading, and
landscape cannot impede the flow of the private drainage easement.
Option A has been added as note 14
;r. Tie a corner of the property to a City of College Station horizontal control Monument
on t he Final Plat.
The plat is now shown to be tied to monument #117
Ji Please add a note on Final plat specifying that the area is in Impact fee area ,
Steeplechase-Wellborn.
Note #10 is updated to show the project is in the Steeplechase-Wellborn
~ Sanitary Sewer Impact Fee Area
lbl. Please fix note 4 on construction sheet 3/16 . "6'' Crushed Limestone Base material "
should be 8".
Note #4 has been updated. 'y( Please add TW to the Legend on sheet 7/16 of the construction plans.
TW has been added to the Legend. J1'. Please verify Storm sewer pipe 101 slope . Construction sheet 8/16 shows pipe 101
slope as 1.80%, while on Appendix B4 of the Drainage Report pipe 101 slope is
shown as 2.25%.
The information in Appendix 84 is incorrect. It has been updated to fix the
flowlines and the slopes of Pipes 100 and 101. A copy of Appendix 84 is
included in this submittal.
12. Please fix Drainage Report . Combined Outfall on table Runoff Flow Direction 2 does
not add up . Fix the Freeboard column on Table 3. Please answer questions on Part
4 Appendix D pg .20 of 26 . Please confirm the 100 year flow for Detention Pond 1,
summary table shows 6.9 while the Hydrograph is showing 7.03.
The Combined Outfall for Flow Direction 2 is not the sum of the Detention
Pond 1 Outfall and Drainage Area 230. The Combined Outfall for Flow
Direction 2 is a combination of the hydrographs and takes into account
timing in the watershed. The Freeboard column on Table 3 has been
updated. Questions on Part 4 Appendix D pg. 20 of 26 have been
answered. The 100 year flow for Detention Pond 1 is 7.03, the summary
table has been revised.
.,
p{. Please confirm that Detention Pond 1 's outflow to Rock Prairie Road drainage swale
has adequate armoring.
Additional Concrete and rock riprap was added at this location to provide
additional armoring.
14 Please provide the flow depth and velocity at mid-block cross drainage valley gutter,
and cross lot drainage swale.
A drainage addendum is included in this submittal with an Appendix E
showing depth of flow and velocity at this location. An Appendix F is
included evaluating the cross lot drainage swale.
1 . Please Justify and explain how the flow in the Private Drainage on all Blocks is being
discharge to the street.
Drainage will flow over the sidewalk as sheet flow and into the curb and
gutter. Appendix F evaluates depth of flow over sidewalk. rf 6r Please fix, the drainage along Block 1 adjacent to Buena Vida Subdivision . It seems
to flow into the rear lot of Buena Vida Subdivision.
A drainage swale is proposed in this location taking drainage over the
sidewalk into the Kate Lane curb and gutter. Spot elevations are shown on
the grading plan to indicate intent.
yf. Please confirm that existing structures on Diamond Storage property is not adjacent
to the proposed drainage swale.
The berm from the pond is proposed to extend between the drainage swale
and the Diamond Storage property. f. Please verify that the elevation of Diamond Storage property adjacent to Detention
Pond 1 & common area is at least 327 feet. If not please provide a 327 feet high
Berm along Detention Pond 1 & common area adjacent to Diamond Storage
property.
The detention pond berm is proposed in this area.
19. The proposed street intersection does not meet the "dried up " guideline, please
provide additional justification .
The intersections in this project are either "local-local" or "collector-local"
in which case valley gutters are acceptable. On Towers Parkway the valley
gutters are proposed parallel to Towers Parkway. Appendix B1 and Exhibit
C have been updated to evaluate the depth of flow at the curve return of the
Kate Lane and Summerway Drive intersection.
20. Please define the flow path for emergency spillway of Detention Pond 2. In the future
development of Phase 2, what's the orientation and flow path for the emergency
Spillway of Detention Pond 2?
The emergency spillway will only be used in the clogged condition of the
outflow structure. It is not intended for use unless under extreme
conditions. In the case that the outflow structure is clogged, the runoff will
continue in a northerly direction towards The Barracks Subdivision similar
to existing conditions. In the future the detention pond will be re-designed
and likely connect to the infrastructure into a future section of the Barracks
Subdivision and the future overflow spillway will likely be directed to a
street right of way.
JA . Please redesign concrete flume 1 & 2 in such a way that the flow through the
channel is sub"'.'critical flow. Design flow depth must be greater than critical depth.
Also please label each concrete flume uniquely on the construction plan.
The slope of concrete flume is now 0.75%. The cross-section of concrete 1 flume 2 and the slope have changed so that the flow depth is greater than ,
'\ . the critical depth. A revised appendix 83 is included in this submittal.
~Please base culvert design on TxDOT minimum details, or provide a structural
analysis with justification of the proposed box culvert.
The 24" x 15" box culvert design exceeds the minimum TX.DOT design
requirements and details for Single Box Culverts, Cast in Place, O' fill,
Detail SCC-3 & 4. A comparison to a 3' x 2' box for the wall thickness and
rebar spacing is as follows:
Concrete
Design TxDOT Detail
Top Slab Thickness 7"+ 7"
Wall Thickness 8 " 7"
Bottom Thickness 8 " 7"
Reinforcin Steel
Top Slab Thickness Top Material
Bottom Material 7"
Transverse Material 18"
Wall Th ickness To Material 10"
Bottom Material 18"
Transverse Material 18"
Bottom Thickness To Material 7"
Bottom Material 10"
Transverse Material 18"
This design for a direct travel box culvert has previously been constructed
with a greater span than the 24" span proposed for this box culvert and has
performed well. The box culvert design will support the anticipated loads
for the street.
~Please verify and place note on the plan that water services will be left between 2
feet and maximum of 3 feet deep at the point of terminus by developer's contractor.
Also note that a ball valve is required at the point of terminus.
Notes have been added to all of the water construction sheets.
'(4 · Please provide adequate Public Utility easement on Block 1 Lots 9 & 10 i n such a
way that the centerline of the sewer lines are no closer than 5.5 feet to the edge of
easement, and that the wyes do not pass the easement.
A 15' PUE is shown on the plat and the plans. JS . Please Note that the existing sewer line on Kate Lane is 6''. Please fix the
construction plans & Sewer report reflecting this. Please provide documentation that
the existing 6" line through Buena Vida Subdivision has sufficient Capacity to serve
the increase flow from Equinox Subdivision.
The plans have been corrected to show the sewer line at Kate Lane being
6". A revised sewer report is included in this submittal. The 6" line
through Buena Vida Subdivision is analyzed in the revised report. '13 . Please fix the Stationing for Sewer Line S-3 . The stationing on profile are not
matching the plan.
The stationing has been fixed for this line. J'1 · Due to the depth of Sewer Line S-3 & S-2, we would require an additional 5 feet
easement totaling to 15 feet Public Utility Easement on all the lots adjacent to these
sewer lines .
A 15 ' PUE is added to all lots adjacent to sewer lines ti Sewer Line 3 from Stationing 3+32 to Stationing 4+50 does not meet B/CS minimum
slope , please provide justification.
Minimum slope for an 8" pipe is 0.55%. Since the outflow pipe is a 6" pipe,
the sewer system in this project will all be 6" pipe
.,')'d. Provide a typical layout detail of water meter, cleanout, and transformer. To ensure that
adequate fits within proposed easement when you include other private ut ilities. Please
con firm with BTU . ~tt-e
Due to the wider street an additional 5' was added to the PUE wbeFe necessary. A
detail was added to sheet 2 showing the proposed layout. This detail was sent to
Walter Williams BTU and an email with his approval is attached to this submittal.
. The detail is in accordance with BTU's Guidelines. ~-Please provide Street S ign table. If you have not received block ranges, contact Robin
rk ra use @cstx.g ov.
A street sign table is included in the plans . ./1 . Should the re not be a streetlight on Towers Parkway and Rock Prairie Road?
A street light has been added at this location. f · Please remove ADA crossing ramps for Towers Parkway next to Sophies Lane.
These ADA ramps have been removed from the plans.
~On block 3 , t he finish floor elevation for t he lots seems to be the same elevation as the top
of Katie Lane 's pavement. We recommend to raise the finish floor elevation by at least 6''.
The finished floor of all the lots on this block has been raised 6".
FIRE
1) No more than thirty (30) dwelling units without two points of egress .
Noted~
SANITATION
1. Sanitation is ok with this project.
Noted.
• I
Ricky Flores
From:
Sent:
To:
Subject:
Hey Ricky,
Walter Williams <williams@btutilities.com>
Tuesday, August 26, 2014 3:43 PM
Ricky Flores
RE : Equinox Phase 1
I'm sorry for the delayed response. I am just getting back to the office. David and I reviewed the layout and it looks fine .
Thank yo u,
Wa lte r Williams
BTU Line Design
979 -821 -5766 office
979 -200 -0441 cell
979 -821 -5796 fax
This e-mail and/or attachment is for the sole use of the intended recipient(s)
and may conta in confidential and /or legally privileged information . Any
unauthorized review, use , disclosure or distribution is prohibited. If you are
not the intended recipient, please contact the sender by reply e-mail and
destroy all electronic and paper copies of the original message and any
attachments.
From: Ricky Flores [mailto:ricky@schultzengineeringllc.com]
Sent: Tuesday, August 26, 2014 2:59 PM
To: Walter Williams
Subject: Equinox Phase 1
Walter,
Can I get your blessing on this detail I made for our construction plans? I followed the details from BTU's guideline I just
proposed a set distance off of the ROW. I couldn't find a set distance in the guidelines.
Thanks
Ricky Flores
This e-mail and/or attachment is for the sole use of the intended recipient(s)
and may contain confidential and /or legally privileged information. Any
unauthorized review, use, disclosure or distribution is prohibited . If you are
not the intended recipient, please contact the sender by reply e-mail and
destroy all electronic and paper copies of the original message and any
attachments .
1
C ITY or C m.LEGE STATION
Home a/Texas A&M Univmity•
CASE NO.:
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No.:
[8] Existing Project Submittal. Case No .: 14-00900181
Project Name EQUINOX SUBDIVISION -Ph 1
Contact Name JOE SCHULTZ P.E. Phone Number 979-764-3900
~~~~~~~~~~~~~-
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan D Development Permit
[8] Final Plat D Development Exaction Appeal
D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D Site Plan [8] Grading Plan
D Special District Site Plan D Other -Please specify below
D Special District Building I Sign
D Landscape Plan
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment [8] Waterline Construction Documents
D TxDOT Driveway Permit [8] Sewerline Construction Documents
D TxDOT Utility Perm it [8] Street Construction Documents
[8] Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
10/10 Print Form
~hU1tz Engin eerin g, LLC
August 2 7, 2014
MattBombek
Staff Planner
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: Equinox Subdivision Phase 1-14-00900181
Dear Mr. Bombek:
Office : 979 .764 .3900
Fax : 979 .764 .3910
Attached are one (1) 24" x 36" copy of the revised final Plat , one (1) 24"x36" copy
of the revised grading and erosion control plan ,~ ('/) set! of revised construction
documents , the revised Engineer's Estimate, an addendum to the drainage report , a
revised sewer report and the response to staff comments.
We are working on the easement dedication for the Temporary Turnaround. This
information will be submitted separately.
If you hav e any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
Joe Sc ltz, P .E.
Civil ngineer
P.O . Box 11995 • College Stat ion , Texas 77842
sc hul tzengineeri ngll c.com
C ITY OF COLI.EGE STATION
Home o/Texas A&M University"
FOR OFFICE USE ONLY
CASE NO.: l L\-l~
DATE SUBMITTED : Q l jOs / lS
TIME : \0 ·.w
STAFF : -+Pi~Cf _____ _
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
(8] Existing Project Submittal. Case No .: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHULTZ P.E.
~--------
Phone Number _9_79_-_7_64_-_3_90_0 ________ _
We are transmittin g the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan D Development Permit
[8] Final Plat D Development Exaction Appeal
D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D Site Plan D Grading Plan
D Special District Site Plan [8] Other -Please specify below
D Special District Building I Sign Mylar and updated tax certificate
D Landscape Plan Parkland Dedication
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
10/1 0 Print Form
January 5, 2015
MattBombek
Staff Planner
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: 12 at Rock Prairie Subdivision Phase 1-14-00900181
Dear Mr. Bombek:
Attached are the following items for the above referenced projest:
1. Mylar original of the Final Plat
2 . CAD file of plat on a CD
3. An updated tax certificate
4 . A check for $64,311 for the Parkland Dedication
If you have any questions, please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
tz ,P .E.
Civil ngineer
P.O . Box 11995 • College Stat ion , Texas 77842
schu ltzengineeringll c .com
Office : 979 .764 .3900
Fax : 979 .764 .3910
ClTY OF COLLEGE STAT ION
Home o/Texas A&M University •
FOR OFFICE USE ONLY
CASE NO .:
DATE SUBMITTED : _____ _
TIME :
STAFF :
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
[8] New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
D Existing Project Submittal. Case No .:
Project Name EQUINOX SUBDIVISION -Ph 1
Contact Name JOE SCHULTZ P.E. Phone Number 979-764-3900
------------~
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment
D Rezoning Application
D Conditional Use Permit
D Preliminary Plan
[8] Final Plat
D Development Plat
D Site Plan
D Special District Site Plan
D Special District Building I Sign
D Landscape Plan
D Non-Residential Architectural Standards
D Irrigation Plan
D Variance Request
D Development Permit
D Development Exaction Appeal
D FEMA CLOMA/CLOMR/LOMA/LOMR
[8] Grading Plan
D Other -Please specify below
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit [8] Sewerline Construction Documents
D TxDOT Utility Permit [8] Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions :
10/10 Pri nt For ~
CITY OF C OLLEGE STATION
Home of Texas A&M University"
FOR OFFICE USE ONLY
CASE NO .: 14-l fO \
DATE susM1nEo : lo I 2--7 / t q
TIME : ...... \·_. '2,_.0 _____ _
STAFF : _,f\O'~~-------
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
[8] Existing Project Submittal. Case No.: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHULTZ P.E. PhoneNumber~9~79~-~76~4~-~39~0~0 ________ _
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan D Development Permit
[8] Final Plat D Development Exaction Appeal
D Development Plat D FEMA CLOMNCLOMR/LOMNLOMR
D Site Plan D Grading Plan
D Special D istrict Site Plan D Other -Please specify below
D Special District Building I Sign
D Landscape Plan
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
Equinox Subdivision is being changed to 12 at Rock Prairie
10/10 r : Pri nt Forr;i I
October 21 , 2014
MattBombek
Staff Planner
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: 12 at Rock Prairie Subdivision Phase 1-14-00900181
Dear Mr. Bombek:
Office: 979 .764 .3900
Fax: 979 .764 .3910
We are requesting a name change from Equinox Subdivision Phase 1 to 12 at Rock
Prairie Subdivision Phase 1. Attached are 1-24"x36" and 13-ll"x17" copies of the
revised Final Plat and 1 copy of the revised Final Plat Application.
If you have any questions, please do not hesitate to call.
Sincerely,
P.O. Box 11995 • College Station, Texas 77842
sch ul tzengineeringll c.com
C ITY OF C m.LEGE STATION
Home of Texas A&M Un iversity•
FOR OFFICE USE ONLY
CASE NO.: 1u , 1 ~
DATE SUBMITTED : \a -\~ \4
TIME : 3· ..i)Q
STAFF: '\(/\'?;;
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
[8] Existing Project Submittal. Case No .: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHULTZ P.E. Phone Number 979-764-3900
~~~~~~~~~~~~~
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment
D Rezoning Application
D Conditional Use Permit
D Preliminary Plan
D Final Plat
D Development Plat
D Site Plan
D Special District Site Plan
D Special District Building I Sign
D Landscape Plan
D Non-Residential Architectural Standards
D Irrigation Plan
D Variance Request
D Development Permit
D Development Exaction Appeal
D FEMA CLOMA/CLOMR/LOMA/LOMR
D Grading Plan
[8] Other -Please specify below
Letter of Credit
Engineer's Estimate to Complete
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions :
10/10 11 Print Fpr m
~hultz Engineering, LLC
December 18 , 2014
Kevin Ferrer
Graduate Civil Engineer
City of College Station
1101 Texas A venue
College Station, TX 77840
Re: 12 at Rock Prairie Subdivision Phase 1-14-00900181
Dear Mr. Ferrer:
Office : 979.764 .3900
Fax : 979 .764 .3910
Attached is the Engineer's Estimate for construction remaining for the 12 at Rock
Prairie financial guarantee.
If you have any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
P.O . Box 11995 • College Station , Texas 77842
schultzengineeringllc.com
Item
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75
SCHULTZ ENGINEERING, LLC.
2730 Longmire Drive, Suite A
College Station, Texas 77845
Firm No.12327
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construction
Description Unit Estimated Unit Price Quantity
,. Genenl Items · ,.-.. . .
Mobilization, Overhead and Construction Staking LS 1 s 20 ,000.00
Right of Way and Site Preparation LS 1 $ 10,000 .00
Topsoil Removal and Replacement, complete in place LS . I $ 6,500 .00
Install End of Street Signs, complete in place EA 12 s 150.00
Install Stop Signs, complete in place EA 8 s 150.00
Erosion & Sediment Control -SWPPP Implementation & Maintenance, Silt LS 1 s 7,500 .00 Fence Construction Exit Rock Filter Darn etc . comolete in olace
Hydroseed and Hydromulch, ROW Easements, Channels , Detention Ponds, SY 22 ,830 s 0.50 complete in place
Seeding of Disturbed Areas, complete in place SY 24 ,513 $ 0.10
General Items Subtotal
.~. ~ ·' · . St~eet Construct~~ items AspbaH Pa~eme~t c
Excavation & Grading including Channel Grading, complete in place LS 1 s 25,000 .00
Mixing & incorporation of lime, 6" deep, complete in place SY 7,385 $ 3.00
Mixing & incorporation of lime, 6" deep, complete in place -Towers Parkway SY 3,631 $ 3.00
Hydrated Lime . complete in place (27 lb/sy foot 6" deep & 36 lb/sy for 8" deep) Ton 150 $ 180.00
Crushed Limestone Base Material -6" thick, complete in place SY 549 $ 11.00
Crushed Limestone Base Material -8' thick, complete in place SY 2,753 s 14 .00
HMAC -Type D Pavement 2" thick -includes prime coat, complete in place -SY 2,753 s 12 .00 Towers Parkway
Concrete Curb & Gutter (Standard), complete in place LF 1,291 s 12.00
Reinforced Concrete Pavement -Aprons -6' Thick w/ Monolithic Standard Curb , SF 9,759 s 5.50 comolete in olace
Concrete Sidewalk & Ramps -4" thick, complete in place SF 27 ,165 $ 4.00
ADA Ramps -Detectable Warning Surfaces, complete in place EA 20 s 600 .00
6" Reinforced Concrete Pavement w/Curb, complete in place SY 5,254 $ 31.00
Street Construction Asphalt Pavement Items Subtotal
Page 1of4
Total %Complete Amount Amount
Quantity Complete ($) Remainin g ($)
s 20 ,000 .00 100% s 20 ,000 .00 $ -
s 10,000 .00 100% $ 10,000.00 $ -
s 6,500.00 70% s 4,550 .00 s 1,950.00
s 1,800.00 0% s -$ 1,800 .00
$ 1,200 .00 0% $ -$ 1,200 .00
$ 7,500 .00 75% $ 5,625 .00 s 1,87 5.00
$ 11 ,415 .15 0% $ -$ 11 ,41 5.15
$ 2,451.28 0% $ -$ 2,451.28
s 60,866.43 Remaining Subtotal s 20,691.43
$ 25,000 .00 90% $ 22,500 .00 $ 2,500 .00
s 22 ,155 .00 100% $ 22,155.00 $ -
$ 10,893.00 66% s 7,189 .38 $ 3,703 .62
s 27 ,000 .00 75% $ 20 ,250 .00 s 6,750 .00
$ 6,039 .00 95% $ 5,737 .05 $ 301.95
$ 38 ,542.00 0% s -$ 38 ,542.00
s 33,036 .00 0% s -s 33 ,036 .00
s 15,492.00 0% s -$ 15 ,492 .00
$ 53,674 .50 70% s 37,814 .05 s 15 ,860 .45
$ 108,660.00 0% $ -s 108 ,660 .00
$ 12,000.00 0% $ -s 12,000 .00
$ 162,874.00 100% $ 162,874 .00 $ -
s 515,365.50 Remaining Subtotal s 236,846.02
20
21
21A
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
18 " RCP Pipe, complete in place (Structural)
18" HOPE Pipe, complete in place (Structural)
15" x 24" Box Culvert, complete in place (Structural)
Curb Inlet -5' wide, complete in place
Curb Inlet - 1 O' wide, complete in place
3'x3 ' J unction Box, co mplete in place
Concrete Flume Inlet, complete in place
Rock RipRap, complete in place
TV Testing and Inspection, complete in place
Trench Drain, complete in place
Concrete Channel, complete in place
·,·. . ;·
'·
Pond Excavating and Grading, complete in place
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construction
Storm Sewer Construction Items
LF 226 $ 45 .00
LF 218 $ 40.00
LF 60 $ 40.00
EA 2 $ 2,800.00
EA 2 $ 3,500.00
EA 1 $ 2,750.00
EA 2 $ 3,500.00
Ton 40 $ 60.00
LF 444 $ 3.00
EA 7 $ 250.00
SF 1,927 $ 6 .00
Storm Sewer Construction Items Subtotal
i>eteiitidia ro.icft CoiisiinctiOn Ite~ · · ..
; . ,. ·.· .... , . . .
LS 1 $ 6,500.00
15 " HOPE Pipe, complete in place (Non-Structural), complete in place LF 60 s 30.00
15 " -6H:lV Concrete SET, complete in place EA 2 $ 1,500.00
4' Wide Concrete Flume, complete in place SF 1,050 $ 6.00
Detention Pond l Construction Items Subtotal
-· :· Det~~ttO.i Pond ~ CO'mtl'llCtioD Items .. ..
Pond Excavating and Grading, complete in place LS l $ 10,000 .00
Connect to Existing Inlet -including remove & rep lace existing fence and repairs LS l $ 2,000.00 to the vard comolete in olace
18" HOPE Pipe, complete in place (Non-Structural) LF 75 $ 35 .00
Concrete Pond Outlet Structure, complete in place EA I $ 2,500.00
Detention Pond 2 Construction Items Subtotal
Page 2 of 4
$ 10 ,170 .00 100% $ 10 ,170.00 $ -
$ 8,720 .00 100% $ 8,720.00 $ -
$ 2 ,400.00 40% $ 960 .00 $ 1,440 .00
$ 5,600 .00 100% $ 5,600 .00 $ -
$ 7,000.00 100% s 7,000 .00 $ -
$ 2,750.00 100% $ 2,750 .00 $ -
$ 7,000 .00 0% $ -$ 7,000.00
$ 2 ,400 .00 0% $ -$ 2,400 .00
$ 1,332 .00 0% $ -$ 1.332.00
$ 1,750.00 0% $ -$ 1,75 0 .00
s 11,562 .00 0% $ -$ 11 ,562 .00
$ 60,684.00 Remaining Subtotal $ 25,484.00
$6,500 100% $ 6,500.00 s -
Sl ,800 100% s 1,800.00 s -
$3,000 100% s 3,000 .00 $ -
$6,300 0% $ -$ 6,300 .00
$17,600 Remaining Subtotal $ 6,300.00
:
$10,000 100% $ 10,000 .00 $ -
$2,000 100% $ 2,000 .00 $ -
$2,625 100% $ 2,625 .00 $ -
$2,500 0% $ -s 2,500.00
$17,125 Remaining Subtotal s l ,500.00
•
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construction
Water Construction Items
8" C900 Water Pipe w/tracer wire -Structural Backfill , complete in place LF 1164 s 30 .00
8" C900 Water Pipe w/tracer wire -Non-Structural Backfill, complete in place LF 14 s 28.00
6" C900 Water Pipe w/tracer wire -Structural Backfill , complete in place LF 786 s 25 .00
Fire Hydrant Assembly (w/valve, vert. extension), complete in place EA 2 $ 3,500.00
8"x 8" M.J. Cross, complete in place EA 1 $ 450.00
8"x 8" M.J. Tee, complete in place EA 1 $ 400 .00
8"x 6" M.J. Tee, complete in place EA 2 $ 400 .00
6"x 6" M.J. Tee, complete in place EA 1 $ 350 .00
8"x 6" M.J. Reducer, com plete in place EA 2 $ 550 .00
8" M.J. Gate Valve, complete in place EA 5 $ 1,250 .00
6" M.J. Gate Valve, complete in place EA 2 s 1,000.00
8" x 45° M.J . Bend, complete in place EA 2 s 350 .00
6" x 45° M.J. Bend, complete in place EA 5 $ 350 .00
6" x 22 .5° M.J. Bend, complete in place EA 2 $ 350 .00
1" Water Service,< 15 ft (avg length = 3 ft) (6" Line) EA 4 $ 800 .00
I" Water Service,> 15 ft (avg length = 47 ft) (6" Line) EA 2 $ 1,000.00
1.5" Water Service,< 15 ft (avg length = 3 ft) (6" Line) EA 4 s 850 .00
1.5" Water Service,> 15 ft (avg length= 47 ft) (6" Line) EA 7 $ 1,250 .00
1" Water Service , < 15 ft (avg length= 3 ft) (8" Line) EA 2 $ 800 .00
1.5 " Water Service,< 15 ft (avg length= 3 ft) (8" Line) EA 4 $ 850 .00
1.5" Water Service,> 15 ft (avg length ~ 47 ft) (8" Line) EA 7 s 1,250 .00
Meter Boxes, complete in place EA 52 $ 100.00
2" Blowoff Assembly, complete in place EA 3 s 1,000 .00
Connect to Existing 8" Water Line EA 1 $ 1,500 .00
Waterline Testing LS 1 $ 1,000 .00
Water Construction Items Subtotal
Page 3 of 4
s 34,920.00 100% $ 34,920 .00 s -
s 392 .00 100% s 392 .00 $ -
$ 19 ,650 .00 100% $ 19,650 .00 $ -
$ 7,000 .00 100% $ 7,000 .00 $ -
$ 450 .00 100% s 450 .00 $ -
$ 400 .00 100% $ 400 .00 $ -
$ 800 .00 100% $ 800 .00 s -
s 350 .00 100% s 350 .00 $ -
s 1,100.00 100% $ 1,100 .00 s -
$ 6,250 .00 100% s 6,250 .00 s -
s 2,000 .00 100% s 2,000.00 s -
$ 700.00 100% s 700.00 $ -
$ 1,750.00 100% s 1,750.00 $ -
$ 700 .00 100% $ 700 .00 s -
s 3,200.00 100% $ 3,200 .00 s -
$ 2,000.00 100% s 2,000 .00 $ -
s 3,400 .00 100% s 3,400 .00 $ -
$ 8,750 .00 100% s 8,750 .00 s -
$ 1,600 .00 100% $ 1,600 .00 $ -
$ 3,400.00 100% $ 3,400 .00 $ -
$ 8,750 .00 100% $ 8,750.00 $ -
$5,200 100% $ 5,200 .00 s -
$ 3,000 .00 100% $ 3,000.00 s -
$ 1,5 00 .00 100% s 1,500.00 $ -
$ 1,000 .00 50% s 500 .00 s 500.00
$ 118,262.00 Remaining Subtotal $ 500.00
•
63
64
65
66
67
68
69
70
71
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construction
Sanitary Sewer Construction Items
6" PVC Sewer Line -D3034 -Structural Backfill. complete in place LF 1,112 $ 22.00
6" PVC Sewer Line -ASTM D-2241 -Structural Backfill , complete in place LF 40 $ 24.00
4" Sewer Service-Single (avg . length = 2 ft), complete in place EA 5 s 450 .00
4" Sewer Service-Double (avg length = 2 ft), complete in place EA 13 s 600.00
4" Sewer Service-Double (avg length = 51 ft), complete in place EA 10 s 1,000 .00
Tie-In to Existing Manhole, complete in place EA 1 $ 1,000 .00
Concrete Drop Manhole -4' Dia. -complete in place EA 5 s 3,500.00
Concrete Manhole -4' Dia. -complete in place EA 1 $ 3,250 .00
TV Testing and Inspection, complete in place LF 1,152 $ 2.00
Sanitary Sewer Construction Items Subtotal
General Items Subtotal S
Street Construction Asphalt Pavement Items Subtotal S
Storm Sewer Construction Items Subtotal S
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items Subtotal
Water Construction Items Subtot.I S
Sanitary Sewer Construction Items Subtotal S
SO"• Additional for Grass
TOTAL CONSTRUCTION S
Page 4 of 4
$ 24,459 .60 0% $ -$ 24 ,459 .60
s 960 .00 0% $ -$ 960 .00
$ 2,250 .00 0% $ $ 2,250.00
s 7,800 .00 0% s -$ 7,800 .00
s 10,000 .00 0% s -$ 10,000 .00
$ 1,000 .00 0% $ -s 1,000 .00
s 17 ,500 .00 0% s -$ 17 ,5 00 .00
$ 3,250 .00 0% $ -$ 3,2 50 .00
$ 2,303 .60 0% $ -s 2,303 .60
s 69,523.20 Remaining Subtotal s 69,523.20
Remaining
60,866.43 s 20,691.43
515,365.SO s 236,846.02
60,684.00 s 25,484.00
$17,600 s 6,300.00
$17,125 s 2,500.00
118,262.00 s 500.00
69,523.20 s 69,523 .2 0
s 5,707 .58
859,426.13 s 367,552.23
......
: ~ PROSPERITY BANK® . ...,....,
FROM: DWS Development, Inc.
ISSUER: Prosperity Bank
12995 FM 2154 Rd, College Station, TX 77845
IRREVOCABLE LETTER OF CREDIT
DATE: December 15, 2014
TO BENEFICIARY: City of College Station
Attention: Director of Development Services
1101 Texas Avenue
College Station , Texas 77840
IRREVOCABLE LETTER OF CREDIT NO.: 1827
ISSUE DATE : 12:0 0 Noon Central Standard Time , December 15, 20 14
EXPIRATION DATE : 12 :00 Noon Central Standard Time, December 15 , 2015, or upon the comp letion
and final payment to all contractors, whichever occurs first.
LOCATION OF PROJECT: Rock Prairie Subdivision -Phase I, College Station, TX
AMOUNT:
ACCOUNT OF:
Three Hundred Sixtv-Seven Thousand Five Hundred Fifty-Two and 23 /100
DOLLARS ($367,552.23)
DWS Development. Inc., (herein "DEVELOPER ")
P.O. Box 4508
Bryan, TX 77805
GENERAL TERMS & CONDITIONS:
The Issuing Bank set out above hereb y issues its IRREVOCABLE LETTER OF CREDIT NO. 18 27 in favor
of the CITY OF COLLEGE STATION, TEXAS, in accordance with CHAPTER 5, V.T.C.A . TEXAS BUSINESS
AND COMMERCE CODE as va ried by and pursuant to the CITY OF COLLEGE STATION UNIFIED
DEVELOPMENT ORDINANCE for the Account of DEVELOPER for an aggregate amount of up to Three
Hundred Sixty-Seven Thousand Five Hundred Fifty-Two and 23 /100 DOLLARS ($367,552.23). This
amount is available by your draft(s) payable at sight when accompanied by the following :
I. Sworn Statement by a duly authorized representative of the City of College Station, Texas , statin g
that Developer(s) has/have defaulted and failed to complete the perfonnance and co nstruction of the
improvements described below in accordance with the UNIFIED DEVELOPMENT ORDINANCE
of the CITY OF COLLEGE STATION, Texas , and that the proceeds from this Letter of Credit will either
be utilized by the City of College Station , Texas , to complete such construction or will be retu rned
by the City of College Station to the Issuing Bank :
Paving, drainage and utility improvements to 12 at Rock Prairie Subdivision -Phas e I
Prepared by: sda vison I 2-12-20 14
SPECIAL TERMS & CONDITIONS :
I. All banking fees /expenses/charges incurred are for the account of Developer. The City of College
Station is not responsible for any charges in connection with a drawing under this Letter of Credit.
This Letter of Credit is issued in conjunction with the development of Developer in the City of
College Station, Texas, specifically for the following:
To guarantee the payment and performance of the proposed construction
im provements in 12 at Rock Prairie Subdivision -Phase I, a proposed subdivision
in the City of College Station, Texas, for a period not to exceed one (I) year(s)
from the date hereof.
2. Disbursements pursuant to this Letter of Credit will never exceed the above -stated amount, less any
amount released by the City of College Station, Texas. The amount of credit under this Letter of
Credit may be reduced upon approval and acceptance by the City of College Station of completed
improvements, which reduction may only be made with the written authorization of the Director of
Planning and Development Services of the City of College Station.
3. In accordance with SECTION 5.106 of the TEXAS BUSINESS AND COMMERCE CODE, this Letter of
Credit may be modified, upon the execution and delivery to Issuer of a sworn statement giving
consent to modification by the Director of Planning and Development Services of the City of
College Station.
4 . The Issuer of this Letter of Credit has caused this Letter to be signed by the undersigned officer who
has attached proof of his authorization to sign, together with attestation by Issuer 's authorized
attesting officer and sealed with the seal of Issuer.
STATE OF TEXAS *
*
COUNTY OF BRAZOS *
This instrument was acknowledged before me on December 15 , 2014, by Blake Steven Osina, Banking
Center President, the authorized officer of Prosperity Bank, Issuer , a Texas Banking Corporation , on behalf
of said Banking Corporation and in the capacity stated .
e MARY L. HEGAR
Notary Public . State of .Texas
My commission Expires
FEBRUARY 20, 2016
Prepared by : sdavison 12-12-2014
Notary PublicCSt~e of Texas
FOR OFFICE USE ONLY
CASE NO .: t ti-l 9 (
DATE SUBMITTED : 01 / 1 f?J ( 'J-
TIME: \ \ : 2.Q
CITY OF Col.LEGE STATION
Home of Texas A&M University" STAFF: ~h-IT_.__ _____ _
FINAL PLAT APPLICATION
(Check one) D Minor
($700)
D Amending
($700)
.[8] Final
($932)
D Vacating
($932)
0Replat
($932)
Is this plat in the ET J? D Yes [8] No Is this plat Commercial D or Residential [g]
MINIMUM SUBMITTAL REQUIREMENTS:
[8] $700-$932 Final Plat Application Fee (see above).
D $233 Waiver Request to Subdivision Regulations Fee (if applicable).
[8] $600 (minimum) Development Permit Applica t ion I Public Infrastructure Review a nd Inspection Fee . Fee is
1 % of acceptable Engineer's Estimate for public infrastructure , $600 minimum (if fee is > $600 , the balance is
due prior to the issuance of any plans or development permit).
[8] Application completed in full. This application form provided by the City of College Station must be used and
may not be adjusted or altered . Please attach pages if additional information is provided.
[8] Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.)
[8] Two (2) copies of the grading , drainage , and erosion control plans with supporting drainage report.
[8] Two (2) copies of the Public infrastructure plans and supporting documents (if applicable).
[8] Copy of original deed restrictions/covenants fo r replats (if applicable).
[8] Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate
current w ithin ninety (90) days. The report must include applicable information such as ownership , liens ,
encumbrances, etc.
[8] Paid tax certificates from City of College Station, Brazos County and College Station l.S .D.
D The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not.
NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered
complete. If the mylar is submitted with the final plat application , it shall be considered a submittal for the
prelim inary plan project and processed and reviewed as such . Until the mylar has been confirmed by staff
to be correct, the final plat application will be considered incomplete.
Date of Optional Preapplication or Stormwater Management Conference _M_a_rc_h_5_,__2_0_14 __________ _
NAME OF PROJECT Equinox Subdivision Phase 1
ADDRESS 3270 Rock Prairie Road West
SPECIFIED LOCATION OF PROPOSED PLAT:
North side of Rock Prairie Road 0. 5 miles west of Wellborn Road
APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project):
Name Craig Browne E-mail craig@craigbrowne .com
~---------------~
Street Address 2801 Earl Rudder Freeway
City College Station Zip Code _7_78_4_5 ___ _ state Texas
~--------
Phone Number 979 . 764 . 7653 Fax Number
~-------------~
Rev ised 4/14 Page 1 of 9
PROPERTY OWNER'S INFORMATION (All owners must be identified . Please attach an add itiona l sheet for mu ltiple
owners):
Name Charles & Mary Turner E-mail diamondt3375@yahoo .com
Street Address 3270 Rock Prairie Road West
City College Station State Texas Z ip Code _7_78_4_5 ___ _
Phone Number 979 . 764 .2967 Fax Number
---------------~
ARCHITECT OR ENGINEER 'S INFORMATION :
Name Joe Schultz, P.E. -Schultz Engineering LLC E-mail joeschultz84@verizon .net
Street Address 3730 Longmire Drive, Suite A
City College Station State Texas Zip Code 77845 ------
Phone Number 979. 764 .3900 Fax Number 979 . 764 .3910 -----------------
Do any deed rest ri ctions or covenants exist for this property? D Yes [gj No
Is there a temporary blanket easement on this property? If so , please prov ide the Volume ____ and Page No . __ _
Total No . of Lots 51 ------R-0-W Acreage 3.022 -------Tota l Acreage _9._2_2_3 _______ _
Existing Use Horses Proposed Use Residential -----------------------------~
Number of Lots By Zoning D istrict 51 T 0 I GS
Average Acreage Of Each Residentia l Lot By Zoning District:
0. 087 I T 0 I GS ___ / __ _
Floodplain Acreage _N._YA ________________________________ _
Is there Special Flood Haza rd Area (Zone A or Zone AE on FEMA FIRM panels) on the property? [J Yes IX] No
This information is necessary to help staff identify the appropriate standards to review the appl ication and will be used to
help determine if the appl ication qualifies for vesting to a previous ord inance . Notwithstanding any assertion made ,
vest ing is lim ited to that wh ich is provided in Chapter 245 of the Texas Local Government Code or other appl icable law.
Is th is application a continuation of a project that has received prior City platting approval(s) and you are requesting the
app li cation be rev iewed under previous ordinance as applicable?
IX] Yes
[J No
If yes , provide information regarding the first approved application and any related subsequent applications (prov ide
add itional sheets if necessary):
Proj ect Name : EQUINOX SUBDIVISION PRELIMINARY PLAN
City Project Number (if known):
Date I Timeframe when submitted : JUNE 2014
Rev ised 4/14 Page 2 of 9
A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable):
Regarding the waiver request, explain how:
1. There are special circumstances or conditions affecting the land involved such that strict application of the
subdivision re ulations will de rive the a licant of the reasonable use of his land .
~~~~~~~~~~~~~~~~~~~~
3. The granting of the waiver will not be detrimental to the public health, safety , or welfare , or injurious to other
property in the area , or to the City in administering subdivision regulations .
4. The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in
accordance with the provisions of the Unified Development Ordinance.
~~~~~~~~~~~~~~~~~~~
Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable):
1. n An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way ;
2. O The presence of unique or unusual topographic , vegetative, or other natural conditions exist so that strict
adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the
purposes and goals of the UDO or the City's comprehensive Plan ;
3. 0 A capital improvement project is imminent that will include construction of the required sidewalk . Imminent shall
mean the project is funded or projected to commence within twelve (12) months;
4 . [j Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I
rural context;
5. O When a sidewalk is required along a street where a multi-use path is shown on the Bicycle , Pedestrian , and
Greenways Master Plan;
Revised 4/14 Page 3 of 9
6 . n The proposed development is within an older residential subdivision meeting the criteria in Platting and
Replatting within Older Residential Subdivisions Section of the UDO ; or
7. ,--; The proposed development contains frontage on a Freeway I Expressway as designated by Map 6 .6 ,
Thoroughfare Plan -Functional Classification , in the City's Comprehensive Plan .
Detailed explanation of condition identified above:
NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the
same time by the Planning & Zoning Commission .
Total Linear Footage of
Proposed Public:
Z 5ZS" Streets
~5() Sidewalks
I 15Z Sanitary Sewer Lines
JO/''( Water Lines
t<:7 I Channels
'37'?.-Storm Sewers
/Goo Bike Lanes I Paths
Parkland Dedication due prior to filing the Final Plat:
ACREAGE :
___ No. of acres to be dedicated + $ ____ development fee
___ No. of acres in floodplain
No . of acres in detention ---
---No . of acres in greenways
OR
FEE IN LIEU OF LAND :
__ No . of SF Dwelling Units X $ __ _ = $
(date) Approved by Parks & Recreation Adv is ory Board ----
NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING.
The applicant has prepared this application and certifies that the facts stated herein and ex hibits attached here to are
true , correct, and complete . IF THIS APPLICATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE
PROPERTY, this application must be accompanied by a power of attorney statement from the owner. If there is more
than one owner, all owners must sign the application or the power of attorney. If the owner is a company, the application
must be accompanied by proof of authority for the company's representative to sign the application on its behalf LIEN
HOLDERS identified in the title report are also considered owners and the appropriate signatures must be provided as
described above.
Sign at~ 7 -f 5'-z.01 '-/
Date
Revised 4/14 Page 4 of 9
CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT
Owner Certification:
1. No work of any kind may start until a perm it is issued .
2 . The perm it may be revoked if any false statements are made herein .
3. If revoked , all work must cease until permit is re-issued .
4 . Development shall not be used or occupied until a Certificate of Occupancy is issued .
5. The permit will expire if no significant work is progressing within 24 months of issuance.
6 . Other permits may be required to fulfill local , state , and federal requirements . Owner will obtain or show
compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP .
7 . If required , Elevation Certificates will be provided with elevations certified during construction (forms at slab pre -
pour) and post construction.
8 . Owner hereby gives consent to City representa t ives to make reasonable inspections required to verify
compliance .
9. If, stormwater mitigation is requ ired , including detention ponds proposed as part of this project , it shall be
designed and constructed first in the construction sequence of the project.
10 . In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken
to insure that all debris from construction , erosion , and sedimentation shall not be deposited in c ity streets , o r
existing drainage facilities . All development shall be in accordance with the plans and specifications submitted to
and approved by the City Engineer for the above named project. All of the applicable codes and ord inances of the
City of College Station shall apply .
11 . The information and conclusions contained in the attached plans and supporting documents will comply with t he
current requirements of the City of College Station, Texas City Code , Chapter 13 and associated BCS Un ified
Design Guidelines Technical Specifications, and Standard Details. All development has been designed in
accordance with all applicable codes and ordinances of the City of College Station and State and Federal
Regulations .
12 . Release of plans to (name or firm) is authorized for bidding purposes
only . I understand that final approval and release of plans and development for construction is contingent on
contracto r signature on approved Development Permit.
13 . I, THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN , AND IN ATTACHMENTS FOR
THE DEVELOPMENT PERMIT APPLICATION , ARE , TO THE BEST OF MY KNOWLEDGE , TRUE , AND
ACC~L-.... 1 -15 ~ ZP t'{
Property Owner(s) Date
Engineer Certification :
1. The project has been designed to ensure that stormwater mitigation , including detention ponds , proposed as part
of the project will be constructed first in the construction sequence .
2 . I will obtai n or can show compliance with all necessary Local , State and Federal Perm its prior to construction
including NOi and SWPPP . Design will not preclude compliance with TPDES : i.e ., projects ove r 10 acres may
require a sedimentation basin .
3 . The information and conclusions contained in the attached plans and supporting documents comp ly with the
current requirements oft~~. ~~~of College Station , Texas City Code, Chapter 13 and associated BCS Unifi ed
Design Guideline~~l_~(eto has been designed in accordance with all applicable codes a nd ordinances
of the City of Co~* ~and Federal Regulations .
4 . I, THE EN~IN~R 1,rAG . 0 ,A)JQ<~RTIFY THAT ALL STATEMENTS HEREIN , AND IN ATTACHMEN T S
FOR THE DE'f.!~f..~.I; ••••• f..BMh:*..A,PLICATION , ARE , TO THE BEST OF MY KNOWLEDGE , TRUE , AND
ACCURATE .1~~9.~~r • ~; •• ~.9]1~.~~·a:·I
~~o a 9 .://JI
. ·~ 0 ~ i) 4"'e-..j e ~ .;;I
Date
Rev ised 4/14 Page 5 of 9
The following CERTIFICATIONS apply to development in Special Flood Hazard Areas.
Required for Site Plans, Final Plats, Construction Plans, Fill / Grading Permits, and Clearing Only
Permits:*
certify , as demonstrated in the attached drainage study , that the
alterations or development covered by this permit, shall not:
(i) increase the Base Flood elevation ;
(ii) create additional areas of Special Flood Hazard Area ;
(iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway
and where the velocity of flow in the Base Flood event is greater than one foot per second . This area can
also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or
areas where the depth of from the BFE to natural ground is 18 inches or greater;
(iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond
the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than
one foot per second without acceptable compensation as set forth in the City of College Station Code of
Ordinances , Chapter 13 concerning encroachment into the Special Flood Hazard Area ; nor
(v) increase Base Flood velocities .
beyond those areas exempted by ordinance in Section 5.11 .3a of Chapter 13 Code of Ordinances.
Engineer Date
Initial
D * If a platting-status exemption to this requirement is asserted, provide written justification under separate
letter in lieu of certification .
Required for Site Plans, Final Plats, Construction Plans, and Fill / Grading Permits:
B. I , , certify to the following:
(i) that any nonresidential or multi-family structure on or proposed to be on this site as part of this application is
designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm .
Engineer Date
Additional certification for Floodway Encroachments:
C . I, , certify that the construction, improvement, or fill covered by this
permit shall not increase the base flood elevation . I will apply for a variance to the Zoning Board of Adjustments.
Engineer Date
Revised 4/14 Page 6 of 9
Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate
required).
Residential Structures:
D. I, , certify that all new construction or any substantial improvement
of any res idential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an
elevation at least one foot above the Base Flood Elevation . Required Elevation Certificates will be provided w ith
elevations certified du ri ng construction (forms at slab pre-pour) and post construction .
Engineer I Surveyor Date
Commercial Structures:
E. I, ----------------, certify that all new construction or any substantial improvement
of any commercial , industrial, or other non -residential structure are designed to have the lowest floor, includ in g all
utilities, ductwork and basements, elevated at least one foot above the Base Flood Elevation
Engineer I Surveyor Date
OR
I, , certify that the structure with its attendant utility, ductwork,
basement and sanitary facilities is designed to be flood -proofed so that the structure and utilities, ductwork,
basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all
areas below the Base Flood Elevation , and sha ll resist the structural loads and buoyancy effects from the
hydrostatic and hydrodynamic conditions.
Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-
pour) and post construction.
Engineer I Surveyor Date
Cond itions or comments as part of approval :
Revised 4/14 Page 7 of9
Existing
~
FINAL PLAT MINIMUM REQUIREMENTS
(ALL CITY ORDINANCES MUST BE MET)
INCLUDING BUT NOT LIMITED TO THE FOLLOWING:
(Requirements based on field survey and marked by monuments and markers.)
~ Drawn on 24" x 36" sheet to scale of 100' per inch.
~ Vic inity map which includes enough of surrounding area to show general location of subject property in
relationship to College Station and its City Limits. No scale required but include north arrow.
~ Title Block with the following information :
[RJ Name and address of subdivider, recorded owner, planner, engineer and surveyor.
[RJ Proposed name of subdivision . (Subdiv ision name & street names will be approved through Brazos
County 911.)
[81 · Date of preparation .
[RJ Engineer's scale in feet.
D Total area intended to be developed .
[81 North Arrow .
[RJ Subdivision boundary indicated by heavy lines.
[RJ If more than 1 sheet, an index sheet showing entire subdivision at a scale of 500 feet per inch or
larger.
[RJ All applicable certifications based on the type of final plat.
[RJ Ownership and Dedication
[RJ Surveyor and/or Engineer
[RJ City Engineer (and City Planner, if a minor plat).
[81 Planning and Zoning Commission (delete if minor plat)
[RJ Brazos County Clerk
D Brazos County Commissioners Court Approval (ET J Plats only)
D If submitting a replat where there are existing improvements, submit a survey of the subject property
showing the improvements to ensure that no encroachments will be created .
D If using private septic systems , add a general note on the plat that no private sewage facility may be
installed on any lot in this subdivision without the issuance of a license by the Brazos County
Health Unit under the provisions of the private facility regulations adopted by the Commissioner's
Court of Brazos County , pursuant to the provisions of Section 21.084 of the Texas Water Code .
[RJ Location of the 100-Year Floodplain and floodway , if applicable, according to the most recent available
data.
[RJ Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data .
~ Matches the approved preliminary plan or qualifies as minor amendments (UDO Section 3.3.E .2).
The location and description with accurate dimensions , bearings or deflection angles and radii , area , center
angle, degree of curvature , tangent distance and length of all curves for all of the
following : (Show existing items that are intersecting or contiguous with the boundary of or forming a
boundary with the subdivision, as well as, those within the subdivision).
Proposed
~ Streets. Continuous or end in a cul-de-sac, stubbed out streets must end into a temp
turn around unless they are shorter than 100 feet.
Public and private R.O .W. locations and widths. (All existing and proposed R.O .W.'s
sufficient to meet Thoroughfare Plan.)
Street offsets and/or intersect ion angles meet ordinance .
Rev ised 4/14 Page 8 of 9
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SCHULTZ ENGINEERING, LLC.
2730 Longmire Drive, Suite A
College Station, Texas 77845
Firm No. 12327
Equinox Subdivision
Phase 1
Engineer's Estimate of Construction
Description Unit
General Items
Mobilization, Overhead and Construction Staking LS
Right of Way and Site Preparation LS
Topsoil Removal and Replacement, complete in place LS
Install End of Street Signs, complete in place EA
Install Stop Signs, complete in place EA
Erosion & Sediment Control -SWPPP Implementation & Maintenance, Silt Fence, LS Construction Exit. Rock Filter Dam etc . complete in place
Hydroseed and Hydromulch, ROW Easements, Channels, Detention Ponds , SY complete in place
Seeding of Disturbed Areas , complete in place SY
Stree! Construction Items Asphalt Pavement
Excavation & Grading inc luding Channel Grading, complete in place LS
Mixing & incorporation of lime, 6" deep, complete in place SY
Mixing & incorporation of lime, 6" deep, complete in place -Towers Parkway SY
Hydrated Lime, complete in place (27 lb/sy foot 6" deep & 36 lb /sy for 8" deep) Ton
Crushed Limestone Base Material -6" thick, complete in place SY
Crushed Limestone Base Material -8" thick, complete in place SY
HMAC -Type D Pavement 2" thick -includes prime coat, complete in place SY
HMAC -Type D Pave ment 2" thick -includes prime coat, complete in place -SY Towers Parkway
Concrete Curb & Gutter (St andard), complete in place LF
Concrete Curb & Gutter (Laydown), complete in place LF
Reinforced Concrete Pavement -Aprons -6" Thick w/ Monolithic Standard Curb, SF complete in olace
Concrete Sidewalk & Ramps -4" thick, complete in place SF
ADA Ramps -Detectable Warning Surfaces, complete in place EA
Estimated Unit Price Quantity
I $ 20,000 .00
I $ 10,000.00
I $ 6,500.00
12 $ 150 .00
8 $ 150 .00
I $ 7,500 .00
22 ,830 $ 0 .50
24,513 $ 0 .10
General Items Subtotal
I $ 25,000 .00
7,385 $ 3 .00
3,631 $ 3 .00
150 $ 180 .00
5,232 $ 11.00
2,753 $ 14 .00
4,683 $ 12.00
2,753 $ 12 .00
1,2 91 $ 12 .00
2,571 $ 12 .00
9,759 $ 5 .50
27,165 $ 4 .00
20 $ 600 .00
Street Construction Asphalt Pavement Items Subtotal
Page 1of4
Total
$ 20,000 .00
$ 10,000 .00
$ 6,500 .00
$ 1,800.00
$ 1,200 .00
$ 7,500 .00
$ 11 ,415 .15
$ 2,451.28
s 60,866.43
$ 25 ,000.00
$ 22,155 .00
$ 10,893 .00
$ 27 ,000.00
$ 57 ,552.00
$ 38,542.00
$ 56,196.00
$ 33 ,036.00
$ 15 ,492 .00
$ 30 ,852 .00
$ 53,674.50
$ 108,660.00
$ 12 ,000 .00
s 491,052.50
20
21
21A
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Equinox Subdivision
Phase 1
Engineer's Estimate of Construction
Storm Sewer Construction Items
18" RCP Pipe, complete in place (Structural) LF
18" HDPE Pipe, complete in place (Structural) LF
15" x 24" Box Culvert, complete in place (Structural) LF
Curb Inlet -5' wide, complete in place EA
Curb lnlet -10' wide, complete in place EA
3'x3' Junction Box, complete in place EA
Concrete Flume Inlet , complete in place EA
Rock RipRap, complete in place Ton
TV Testing and Inspection, comp lete in place LF
Trench Drain, complete in place EA
Concrete Channel , complete in place SF
226 $ 45.00
218 $ 40.00
60 $ 40 .00
2 $ 2,800.00
2 $ 3,500.00
I $ 2,750 .00
2 $ 3,500.00
40 $ 60 .00
444 $ 3 .00
7 $ 250.00
1,927 $ 6 .00
Storm Sewer Construction Items Subtotal
Detention Pond 1 Construction Items
Pond Excavating and Grading, complete in place LS l $ 6,500 .00
15" HDPE Pipe, complete in place (Non-Structural), complete in place LF 60 $ 30.00
15" -6H: l V Concrete SET, complete in place EA 2 $ 1,500 .00
4' Wide Concrete Flume, complete in place SF 1,050 $ 6.00
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items
Pond Excavating and Grading, complete in place LS l $ 10,000.00
Connect to Existing Inlet -including remove & replace existing fence and repairs to LS l $ 2,000 .00 the vard comolete in olace
18" HDPE Pipe, complete in place (Non-Structural) LF 75 $ 35.00
Concrete Pond Outlet Structure, complete in place EA l $ 2,500.00
Detention Pond 2 Construction Items Subtotal
Page 2 of 4
$ 10,170.00
$ 8,720 .00
$ 2,400.00
$ 5,600.00
$ 7,000.00
$ 2,750 .00
$ 7,000.00
$ 2,400.00
$ 1,332 .00
$ 1,750.00
$ 11 ,562.00
s 60,684.00
$6,500
$1,800
$3,000
$6,300
$17,600
$10,000
$2,000
$2,625
$2,500
SI 7,125
,
3 8
39
40
41
42
4 3
4 4
45
46
4 7
4 8
49
50
51
52
53
54
55
56
57
58
59
60
61
62
Equinox Subdivision
Phase 1
Engineer's Estimate of Construction
Water Construction Items
8" C900 Water Pipe w/tra ce r wire -Structural Backfill, complete in place LF
8" C900 Water Pipe w/tracer w ire -Non-Structural Backfill, complete in place LF
6" C900 Water Pipe w/tracer wire -Structural Backfill , complete in place LF
Fire Hydrant Assembly (w/v alve , vert . extension), complete in pl ac e EA
8"x 8" M.J . Cross , complete in place EA
8"x 8" M.J. Tee , compl ete in place EA
8"x 6" M.J. Tee , complete in pl ace EA
6"x 6" M.J . Tee, complete in pl ace EA
8"x 6" M.J . Reducer, complete in place EA
8" M.J . Gate Valve, complete in place EA
6" M.J . Gate Valve, complete in place EA
8" x 45 ° M.J . Bend, complete in place EA
6" x 4 5° M.J . Bend, complete in place EA
6" x 22 .5° M.J . Bend, complete in place EA
I" Water Service,< 15 ft (avg length = 3 ft) (6" Line) EA
I" Water Service ,> 15 ft (avg length = 47 ft) (6" Line) EA
l.5" Water Service,< 15 ft (avg length = 3 ft) (6" Line) EA
1.5" Wat er Service,> 15 ft (avg length = 47 ft) (6" Line) EA
I" Water Service,< 15 ft (avg length = 3 ft) (8" Line) EA
l.5" Water Service ,< 15 ft (avg length = 3 ft) (8" Line) EA
l.5" Water Service,> 15 ft (avg length= 47 ft) (8" Line) EA
Meter Boxes, complete in place EA
2" Blowoff Assembly, complete in pl ace EA
Connect to Existing 8" Water Line EA
Waterline Testing LS
1164 $ 30 .00
14 $ 28 .00
786 $ 25 .00
2 $ 3,500.00
I $ 450.00
I $ 400 .00
2 $ 400 .00
I $ 350.00
2 $ 550.00
5 $ 1,250 .00
2 $ 1,000.00
2 $ 350.00
5 $ 350.00
2 $ 350.00
4 $ 800.00
2 $ 1,000 .00
4 $ 850.00
7 $ 1,250 .00
2 $ 800 .00
4 $ 850 .00
7 $ 1,250 .00
52 $ 100 .00
3 s 1,000 .00
I s 1,500.00
I s 1,000 .00
Water Construction Items Subtotal
Page 3 of 4
$ 34 ,920.00
$ 392 .00
$ 19 ,650.00
$ 7,000 .00
$ 450 .00
$ 4 00.00
$ 800 .00
$ 350 .00
$ 1,100 .00
$ 6,2 50 .00
$ 2,000.00
$ 700.00
$ 1,750.00
$ 700 .00
$ 3,200.00
$ 2 ,000.00
$ 3,400.00
$ 8,750 .00
$ 1,600 .00
$ 3 ,400 .00
$ 8,750 .00
$5,200
s 3,000 .00
s 1,500.00
s 1,000.00
s 118,262.00
63
64
65
66
67
68
69
70
71
Equinox Subdivision
Phase 1
Engineer's Estimate of Construction
Sanitary Sewer Construction Items
6" PVC Sewer Line -D3034 -Structural Backfill , complete in place LF
6" PVC Sewer Line -ASTM D-2241 -Structural Backfill, complete in place LF
4" Sewer Service-Single (avg. length = 2 ft), complete in place EA
4" Sewer Service-Double (avg length = 2 ft), complete in place EA
4" Sewer Service-Double (avg length = 51 ft), complete in place EA
Tie-In to Existing Manhole, complete in place EA
Concrete Drop Manhole -4' Dia. -complete in place EA
Concrete Manhole -4' Dia. -complete in place EA
TV Testing and Inspection, complete in place LF
1,112 $ 22.00
40 $ 24.00
5 $ 450.00
13 $ 600 .00
10 $ 1,000 .00
1 $ 1,000.00
5 $ 3,500.00
1 $ 3,250 .00
1,152 $ 2.00
Sanitary Sewer Construction Items Subtotal
General Items Subtotal s
Street Construction Asphalt Pavement Items Subtotal s
Storm Sewer Construction Items Subtotal s
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items Subtotal
Water Construction Items Subtotal s
Sanitary Sewer Construction Items Subtotal s
TOTAL CONSTRUCTION S
$ 24,459 .60
$ 960.00
$ 2,250.00
$ 7,800 .00
$ 10 ,000 .00
$ 1,000.00
$ 17 ,500.00
$ 3,250.00
$ 2,303 .60
s 69,523.20
60,866.43
491,052.50
60,684.00
$17,600
$17,125
118,262.00
69,523.20
835,113.13
F-12327·
SCHULTZ ENGINEERING, LLC.
Page 4 of 4
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SCHULTZ ENGINEERING, LLC.
2730 Longmire Drive, Suite A
College Station, Texas 77845
Firm No. 12327
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Con struction
Description Uni t Est im ated Unit Price Quantity
General Items
Mobilizatio n, Overhead an d Construction Stakin g LS I $ 20 ,000 .00
Right of Way and Site Preparati o n LS I $ 10,000.00
Topso il Re moval and Repl ace ment, complete in pl ace LS I $ 6,500 .00
Install End of Street Signs, co mpl ete in place EA 12 $ 150 .00
Install Sto p Signs , complete in pl ace EA 8 $ 150 .00
Erosion & Sediment Control -SWPPP Im pl ementation & Ma inte nance, Silt LS I $ 7,500 .00 Fe nce Constru ction Exit Roc k Filter Dam etc. comolete in olace
Hydroseed and Hydromulc h, ROW Easements , C ha nne ls, De tention Ponds , SY 22 ,830 $ 0 .50 complete in pl ace
Seeding of Disturbed Areas, complete in place SY 24 ,5 13 $ 0 .10
General Items Subtotal
Street Construction Items As phalt Pavement
Excavation & Grading inclu di ng Channel Grad ing, complete in place LS I $ 2 5,000.00
Mixing & inc orporation of lime, 6" deep, co mplete in place SY 7,385 $ 3.00
Mixing & incorporatio n of lime , 6" dee p, complete in pl ac e -Towers Parkway SY 3,631 $ 3.00
Hydrated Lime, complete in pl ace (27 lb/sy foo t 6" deep & 36 lb/sy fo r 8" deep) Ton 150 $ 180 .00
Crushed Li mestone Base Material -6" thick, co mpl ete in place SY 549 $ 11.00
Crushed Li mestone Base Material - 8" thick, complete in place SY 2,753 $ 14 .00
HMAC -Ty pe D Pavement 2" th ick - includes prime coat, complete in pl ace -SY 2,753 $ 12 .00 Towers Pa rkway
Concrete Curb & Gutter (Sta ndard), compl ete in pl ace LF 1,29 1 $ 12 .00
Reinforced Co ncrete Pavement -Aprons -6" Thi ck w/ Monol ith ic Standard Cur b, SF 9,759 $ 5.50 comp lete in pl ace
Concrete Side walk & Ra mps -4" thick, complete in place SF 27,165 $ 4 .00
ADA Ram ps -Detectable War ni ng Surfaces, com ple te in place EA 20 s 600.00
6" Reinforced Concrete Pave ment w/Curb, complete in pl ace SY 5,25 4 $ 31.00
Street Construction Asphalt Pavement Items Subtotal
Page 1of4
Total %Complete Amount Amount
Quantity Compl ete($) Remai ning ($)
$ 20 ,000.00 100% $ 20,000 .00 $ -
$ 10,000.00 100% $ 10,000 .00 $ -
$ 6,5 00.00 70% $ 4,55 0 .00 $ 1,950.00
s 1,800 .00 0% s -$ 1,800.00
$ 1,200 .00 0% s -s 1,200.00
$ 7,500.00 75% $ 5,625 .00 $ 1,875 .00
$ 11,4 15.15 0% $ -s 11 ,41 5.15
s 2,45 1.28 0% $ -$ 2,451.28
s 60 ,866.43 Remaining Subtotal s 20,691.43
$ 25 ,000 .00 90% $ 22 ,500 .00 $ 2 ,500.00
$ 22 ,15 5.00 100% $ 22,155 .00 $ -
$ 10,893.00 66% $ 7,189.38 $ 3,703 .62
$ 27,000 .00 75% $ 20 ,250 .00 $ 6 ,750 .00
$ 6,039 .00 95% $ 5,737 .05 $ 301.95
$ 38 ,54 2 .00 0% $ -$ 38,542.00
$ 33 ,036.00 0% $ -$ 33,036.00
s 15,492 .00 0% s -$ 15,492 .00
s 53 ,6 74.50 25 % s 13,41 8.63 $ 40,255 .88
$ 10 8,660.00 0% s -$ 108 ,660.00
$ 12 ,00 0.00 0% $ -$ 12,000.00
$ 162,874 .00 73% $ 118,898 .02 s 43 ,9 75.98
$ 515,365.50 Remaining Subtotal s 305,217.43
20
21
21A
22
23
24
25
26
27
2 8
29
30
31
32
33
34
35
36
37
l 8" RCP Pi pe, com plete in pl ace (Structural)
l 8" HDPE Pipe, complete in pl ace (Structural)
15 " x 24 " Box C ulvert, com plete in place (Structural)
Cur b Inlet -5' wide , complete in pl ace
C urb Inlet -l O' wide, co mpl ete in place
3'x3' Junction Box, co m plete in pl ace
Concrete Fl ume Inlet, com plete in place
Rock RipRap, complete in pl ace
TV Testing and Inspectio n, compl ete in place
Trench Drain, complete in place
Concrete Channel , comp lete in place
Po nd Excavatin g and Grading, compl ete in pl ace
12 at Rock Prairie Subdivision
Ph as e 1
Engineer's Estimate to Complete Construction
Storm Sewer C on struction Items
LF 226 $ 45 .00
LF 218 $ 40 .00
LF 60 s 40 .00
EA 2 $ 2,800.00
EA 2 s 3,500.00
EA l $ 2,750 .00
EA 2 $ 3,500 .00
Ton 40 $ 60.00
LF 444 $ 3.00
EA 7 $ 250 .00
SF 1,927 $ 6.00
Storm Sewer Construction Items Subtotal
Detention Pond 1 Construction Items
LS I $ 6,500 .00
15 " HDPE Pipe , complete in pl ace (Non-Stru ctural), co mpl ete in place LF 60 $ 30 .00
15 " -6H: I V Concrete SET, complete in pl ace EA 2 $ 1,5 00.00
4' Wide Concrete Flume, complete in place SF 1,05 0 $ 6.00
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items
Pond Excavating and Grading, com plete in pl ace LS 1 $ 10 ,000.00
Conn ect to Existing In let -including remove & repl ace existing fen ce and re pairs LS l $ 2,000 .00 to the ya rd com ol ete in olace
l 8" HDPE Pipe, co mpl ete in pl ace (Non-Structural) LF 75 $ 35.00
Concrete Pond Outlet Structure, complete in pl ac e EA l $ 2,500 .00
Detention Pond 2 Construction Items Subtotal
Page 2 of 4
$ 10,170.00 100% $ 10 ,170.00 $ -
s 8,720 .00 100% $ 8,720 .00 $ -
$ 2,400 .00 40% $ 960 .00 $ 1,440 .00
$ 5,600.00 100% $ 5,600 .00 $ -
s 7,000 .00 100% $ 7,000 .00 $ -
s 2,750.00 100% $ 2,750 .00 $ -
$ 7,000.00 0% $ -s 7,000.00
s 2,400.00 0% $ -$ 2,400.00
s 1,332 .00 0% $ -$ 1,332 .00
s 1,750 .00 0% $ -$ 1,750 .00
$ 11 ,562 .00 0% $ -$ 11 ,562 .00
s 60,684.00 Re maining S ubtota l s 25,484.00
$6 ,500 100% $ 6,500 .00 $ -
$1,800 100% $ 1,800 .00 $ -
$3 ,000 100 % $ 3,000.00 $ -
$6,300 0% $ -$ 6,3 00 .00
$17,600 Remaining Subtotal s 6,300.00
$10,000 100% $ 10 ,000 .00 $ -
$2,000 100% $ 2,000 .00 $ -
$2,625 100% $ 2,625 .00 $ -
$2,500 0% $ -$ 2,500 .00
$17,125 Remaining Subtotal s 2,500.00
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
12 at Rock Prairie Subdivision
Phase l
Engineer's Estimate to Complete Construction
Water Construction Items
8" C900 Water Pipe w/tracer wire -Structural Backfill, complete in place LF 1 164 $ 30.00
8" C900 Water Pipe w/tracer wire -Non-Structural Backfill , complete in place LF 14 $ 28.00
6" C900 Water Pipe w/tracer wi re -Structural Backfi ll , co mpl ete in place LF 786 $ 25 .00
Fire Hydrant Assembly ( w/va lve, vert. extension), complete in place EA 2 $ 3,500.00
8"x 8" M .J . Cross, complete in place EA I $ 450.00
8"x 8" M.J. Tee, complete in place EA I $ 400.00
8"x 6 " M.J. Tee, complete in place EA 2 $ 400.00
6"x 6 " M.J. Tee, complete in place EA I $ 350.00
8"x 6" M.J . Reducer, co mplete in place EA 2 $ 550.00
8" M.J . Gate Valve, complete in place EA 5 $ 1,250.00
6" M .J. Gate Valve, complete in place EA 2 $ 1,000.00
8" x 45° M.J . Bend, complete in place EA 2 $ 350.00
6" x 45 ° M .J. Bend, complete in place EA 5 $ 350.00
6" x 22.5° M .J . Bend, complete in place EA 2 $ 350.00
I " Water Service,< 15 ft (avg length = 3 ft) (6 " Line) EA 4 $ 800.00
I " Water Service,> 15 ft (avg length = 47 ft) (6" Line) EA 2 $ 1,000.00
1.5 " Water Service,< 15 ft (avg length = 3 ft) (6" Line) EA 4 $ 850.00
1.5 " Water Service,> 15 ft (avg length = 47 ft)(6" Line) EA 7 $ 1,250.00
I " Water Service, < 15 ft (avg length = 3 ft)(8" Line) EA 2 $ 800.00
1.5" Water Service,< 15 ft (avg length = 3 ft) (8" Line) EA 4 $ 850 .00
1.5" Water Service,> 15 ft (avg length = 47 ft) (8" Line) EA 7 $ 1,250.00
Meter Boxes, complete in place EA 52 s 100.00
2 " Blowoff Assembly, complete in place EA 3 s 1,000.00
Connect to Existing 8" Water Line EA I s 1,500.00
Waterline Testing LS I s 1,000.00
Water Construction Items Subtotal
Page 3 of 4
$ 34,920.00 100% $ 34,920 .00 $ -
$ 392.00 100% $ 392.00 $ -
$ 19,650.00 100% $ 19 ,650.00 $ -
$ 7,000.00 100% $ 7,000.00 $ -
$ 450.00 100% $ 450.00 $ -
$ 400.00 100% $ 400.00 $ -
$ 800.00 100% $ 800.00 $ -
$ 350.00 100% $ 350.00 $ -
$ 1,100 .00 100% $ 1,100.00 $ -
$ 6,250.00 100% $ 6,250.00 $ -
$ 2,000.00 100% $ 2,000.00 $ -
$ 700.00 100% $ 700.00 $ -
s 1,750.00 100% $ 1,750.00 $ -
$ 700.00 100% $ 700.00 $ -
$ 3,200.00 100% $ 3,200.00 $ -
$ 2,000.00 100% $ 2,000.00 $ -
$ 3,400.00 100% $ 3,400.00 $ -
s 8,750.00 100% $ 8,750.00 $ -
$ 1,600.00 100% s 1,600.00 $ -
$ 3,400.00 100% $ 3,400 .00 $ -
s 8,750.00 100% $ 8,750.00 $ -
$5 ,200 100% $ 5,200.00 $ -
s 3,000.00 100% $ 3,000.00 s -
s 1,500.00 100% s 1,500.00 s -
$ 1,000.00 50% $ 500.00 s 500.00
$ 118,262. 00 Remaining Subtotal $ 500.00
63
64
65
66
67
68
69
70
71
12 at Rock Prairie Subdivi sion
Ph as e 1
Engineer's Esti mate to Comp let~ Con st ruction
Sanitary Sewer Construction Items
6" PVC Sewer Line -D3034 -Structural Backfill , co mpl ete in place LF 1,11 2 $ 22 .00
6" PVC Sewer Line -ASTM D-2241 -Structural Backfill , co mplete in place LF 40 $ 24 .00
4" Sewer Service-Single (avg . length = 2 ft), co mpl ete in place EA 5 $ 450 .00
4" Sewer Service-Double (avg length = 2 ft), comp lete in place EA 13 $ 600 .00
4" Sewer Service-Double (avg length = 5 1 ft), co mpl ete in place EA 10 $ 1,000 .00
Tie-In to Existing Manho le , co mpl ete in place EA 1 $ 1,000 .00
Concrete Drop Manhole -4' Dia. -complete in place EA 5 $ 3,500 .00
Concrete Manhole - 4' Dia. -complete in place EA 1 $ 3,250 .00
TV Testing and Inspection, compl ete in place LF 1,152 s 2.00
Sanitary Sewer Construction Items Subtotal
General Items Subtota l s
Street Construction Asphalt Pavement Items Subtotal s
Storm Sewer Construction Items S ubtotal s
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items S ubtotal
Water Construction Items Subtotal s
Sanitary Sewer Construction Items S ubtotal s
50 % Additional for Grass
TOTAL CONSTRUCTION s
Page 4 of 4
$ 24 ,459 .60 100% $ 24 ,459 .60 $ -
$ 960 .00 100% $ 960.00 $ -
$ 2,250 .00 100% $ 2,250 .00 $ -
$ 7,800 .00 100% $ 7,800 .00 $ -
$ 10 ,000 .00 100% $ 10,000 .00 s -
$ 1,000.00 100% $ 1,000 .00 $ -
$ 17 ,500.00 100% $ 17 ,500.00 $ -
$ 3,250 .00 100% $ 3,250 .00 $ -
$ 2,303.60 50% $ 1,151.80 s 1,151.80
s 69,523 .20 Remaining Subtotal s 1,151.80
Remaining
60,866.43 s 20,691.43
515,365.50 s 305,217.43
60 ,684.00 s 25,484.00
$17,600 s 6,300.00
S17,12 s 2,500.00
118,262.00 s 500.00
69,523.20 s 1,151.80
s 5,707 .58
859,426.13 s 367,552.23
&chultz Engin eering, LLC
December 15 , 2014
MattBombek
Staff Planner
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: 12 at Rock Prairie Subdivision Phase 1 -14-00900181
Dear Mr. Bombek:
Office : 979 .764.3900
Fax : 979 .764 .3910
Attached is the Engineer's Estimate for construction remaining for the 12 at Rock
Prairie financial guarantee and the financial guarantee.
If you have any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
P.O . Box 11995 • College Station , Texas 77842
schultzengineeringllc.com
•·'*·• : ~ PROSPERITY BANK ~' ... ...._..,
FROM: DWS Development, Inc.
ISSUER: Prosperity Bank
12995 FM 2154 Rd, College Station, TX 77845
IRREVOCABLE LETTER OF CREDIT
DATE: December 15, 2014
TO BENEFICIARY : City of College Station
Attention: Director of Development Services
110 I Texas Avenue
College Station, Texas 77840
IRREVOCABLE LETTER OF CREDIT NO.: 1827
ISSUE DATE : 12 :00 Noon Central Standard Time, December 15 , 2014
EXPIRATION DATE : 12 :00 Noon Central Standard Time, December 15 , 2015, or upon the completion
and final payment to all contractors, whichever occurs first.
LOCATION OF PROJECT: Rock Prairie Subdivision -Phase I, College Station, TX
AMOUNT:
ACCOUNT OF:
Three Hundred Sixty-Seven Thousand Five Hundred Fifty-Two and 23/100
DOLLARS ($367,552 .23)
DWS Development. Inc ., (herein "DEVELOPER ")
P.O. Box 4508
Bryan, TX 77805
GENERAL TERMS & CONDITIONS:
The Issuing Bank set out above hereby issues its IRREVOCABL E LETTER OF CREDIT NO . 18 27 in favor
of the CITY OF COLLEGE STATION, TEXAS, in accordance with CHAP TE RS, V.T.C.A . TEXAS BUS IN ESS
ANO COMMER CE CODE as varied by and pursuant to th e CITY OF COLLE GE STA TI ON UNIFIED
DEVELOPMENT ORDINANCE for the Account of DEVELOPER for an aggregate amount of up to Three
Hundred Sixty-Seven Thousand Five Hundred Fifty-Two and 231100 DOLLARS ($367,552 .2 3). This
amount is available by yo ur draft(s) payable at sight when accompanied by the following :
I . Sworn Statement by a dul y authorized representative of the City of College Station, Texas, stating
th at Developer(s) has/have defaulted and failed to complete the performance and construction of the
improvements described below in accordance with th e UNIFIED DEVEL OPMENT ORDINANCE
of the CI TY OF COLLEGE STAT ION, Texas, and that the proceeds from this Letter of Credit will either
be utilized by the City of Co llege Station, Texas , to complete such co nstruction or will be ret urned
by the C ity of College Station to the Issuing Bank :
Paving, drainage and utility improvem ents to 12 at Rock Prairi e Subdivision -Phase I
Prepare d by: sda viso n 12-12-2014
..
SPECIAL TERMS & CONDITIONS :
I. A II banking fees /expenses /charges incurred are for the account of Developer. The City of College
Station is not responsible for any charges in connection with a drawing under this Letter of Credit.
This Letter of Credit is issued in conjunction with the development of Developer in the City of
College Station, Texas , specifically for the following :
To guarantee the payment and performance of the proposed construction
improvements in I 2 at Rock Prairie Subdivision -Phase I, a proposed subdivision
in the Cit y of College Station, Texas, for a period not to exceed one (I) year(s)
from the date hereof.
2. Disbursements pursuant to this Letter of Credit will never exceed the above-stated amount, less any
amount released by the City of College Station, Texas. The amount of credit under this Letter of
Credit ma y be reduced upon approval and acceptance by the City of College Station of completed
improvements , which reduction may onl y be made with the written authorization of the Director of
Planning and Development Services of the City of College Station .
3. In accordance with SECTION 5. I 06 of the TEXAS BUS INESS AND COMMERC E CODE, this Letter of
Credit may be modified, upon the execution and delivery to Issuer of a sworn statement giving
con sent to modification by the Director of Planning and Development Services of the City of
College Station .
4 . The Iss uer of thi s Letter of Credit has caused this Letter to be signed by the under s igned officer who
ha s att ached proof of his authorization to sign, together with attestation by Issuer's authorized
atte sting officer and sealed with the seal of Issuer .
ISSUER : Prosperity Bank
sv-1%/-42~
STAT E OF TEXAS *
*
COUNTY OF BRAZOS *
This instrument was acknowledged before me on December 15 , 2014, by Blake Steven Os ina , Banking
Center President, the authorized officer of Prosperity Bank, Issuer, a Texas Banking Corporation, on behalf
of said Ban king Corporation and in the capacity stated . e MARY L. HEGAR
Notary Public. State of Texas
My Comm1ss1on Expires
FEBRUARY 20, 2016
Prepared by: sdavi so n 12-12-20 14
'('\"\_ ~ 7~
Notary Qc -State of Texas
•·*·• : ~ PROSPERITY BANKqt, .. ......,...,
STANDBY LEITER OF CREDIT AMENDMENT
Date: January 26, 2015
Letter of Credit Number: 1827
Amendment No:
Beneficiary :
Applicant:
1
City of College Station
1101 Texas Avenue
College Station, TX 77840
DWS Development, Inc .
P.O. Box 4508
Bryan, TX 77840
Irrevocable Letter of Credit No . 1827 Issued on December 15, 2014 for the account of DWS
Development, Inc, in favor of City of College Station, in the amount of USO $367,552 .23 is hereby
amended as follows:
AMOUNT: From: $367,552.23
To: 257,015.71
All other terms and conditions remain unchanged.
Please acknowledge acceptance and return the copy of this amendment in the envelope provided.
ProsperityBan~A • By:~~~
Blake Steven Osina, Banking Center President
Acknowledgement:
City of College Station hereby acknowledges and accepts this amendment and all changes as described
herein . ~
By : _J:~-------~---
kevi'n 2Gvre>-PDs
(printed name and title)
Prepared by : ydiaz 1/26/2015
Item
I
2
3
4
4A
5
6
7
7
8
9
10
II
12
14
15
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18
19
75
SCHULTZ ENGINEERING, LLC.
2730 Longmire Drive, Suite A
College Station, Texas 77845
Firm No. 12327
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construction
Description Unit Estimated Unit Price Quantity
General Items
Mobilization, Overhead and Construction Staking LS I s 20,000 .00
Right of Way and Site Preparation LS I $ 10,000.00
Topsoil Removal and Replacement, complete in place LS 1 s 6,500 .00
Install End of Street Signs, complete in place EA 12 $ 150 .00
Install Stop Signs, complete in place EA 8 s 150 .00
Erosion & Sed iment Control -SWPPP hnplementation & Maintenance, Silt LS I s 7,500.00 Fence Construction Exit Rock Filter Dam etc . comnlete in nlace
Hydroseed and Hydromulch, ROW Easements, Channels, Detention Pond s, SY 22,830 $ 0.50 complete in place
Seeding of Disturbed Are as, complete in place SY 24,513 $ 0.10
General Items Subtotal
Street Construction Items Asphalt Pavement
Excavation & Grading including Channel Grading, complete in place LS I s 25,000.00
Mixing & inc0<p0ration of lime , 6" deep, complete in place SY 7,385 $ 3.00
Mixing & incorporation of lime , 6" deep, complete in place -Towers Parkway SY 3,631 s 3.00
Hydrated Lime, complete in place (27 lb/sy foot 6" deep & 36 lb/sy for 8" deep) Ton 150 s 180 .00
Crushed Limestone Base Material -6" thick , complete in place SY 549 $ 11.00
Crushed Limestone Base Material -8" thick, complete in place SY 2,753 $ 14.00
HMAC -Type D Pavement 2" thick -includes prime coat , complete in place -SY Towers Parkwav 2,753 $ 12 .00
Concrete Curb & Gutter (Standard ), complete in place LF 1,291 $ 12 .00
Reinforced Concrete Pavement -Aprons -6" Thick w/ Monolithic Standard Curb , SF 9,759 $ 5.50 comdete in nlace
Concrete Sidewalk & Ramps-4" thick, complete in place SF 27,165 $ 4 .00
ADA Ramps -Detectable Warning Surfaces, complete in place EA 20 s 600.00
6" Reinforc ed Concre te Pavement w/Curb, complete in place SY 5,254 s 31.00
Street Construction Asphalt Pavement Items Subtotal
Page 1of4
Total %Com plete Amount Amount
Quantity Complete (S) Remaining ($)
$ 20,000 .00 100% $ 20,000 .00 s -
$ 10,000.00 100% $10,000.00 $ -
s 6,500 .00 85% s 5,525 .00 s 975 .00
s 1,8 00 .00 0% s -$ 1,800 .00
s 1,2 00 .00 0% $ $ 1,200 .00
$ 7,500.00 85% $ 6,375 .00 $ 1,125 .00
$ 11,415.15 0% s -$ 11 ,415 .15
$ 2,451.28 0% s -$ 2,451.28
s 60,866.43 Remainini: Subtotal $ 18,966.43
$ 25,000 .00 90% $22,500.00 s 2,500 .00
s 22,155 .00 100% $22,155 .00 $
s 10 ,893 .00 100% s 10,893 .00 $ -
s 27,000.00 100% $ 27,000 .00 $
$ 6,039 .00 100% s 6,039 .00 $ -
$ 38,542 .00 90% $ 34,687 .80 $ 3,854 .20
s 33,036 .00 0% s -s 33,036 .00
s 15 ,492 .00 100% s 15,492 .00 $ -
$ 53 ,674 .50 100% $ 53,674.50 $ -
$ 108,660 .00 10 % $ 10,866 .00 $ 97 ,794 .00
s 12,000.00 0% s -$ 12 ,000 .00
$ 16 2,874 .00 100% $ 162,874.00 $
s 515,365.50 Remaining Subtotal $ 149,184.20
20
21
21A
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
18" RCP Pipe, complete in place (Structural)
18" HDPE Pipe, complete in place (Structural)
15" x 24 " Box Culvert, complete in place (Structural)
Curb Inlet -5' wide, complete in place
Curb Inlet -IO' wide, complete in place
3'x3' Junction Box, complete in place
Concrete Flume Inlet, complete in place
Rock RipRap, complete in place
TV Testing and Inspection, complete in place
Trench Drain, complete in place
Concrete Channel , complete in place
Pond Excavating and Grading, complete in place
12 at Rock Prairie Subdivision
Phase 1
Engineer's Estimate to Complete Construc tion
Storm Sewer Construction Items
LF 226 $ 45 .00
LF 218 $ 40 .00
LF 60 $ 40 .00
EA 2 $ 2,800 .00
EA 2 $ 3,500.00
EA 1 $ 2,750.00
EA 2 $ 3,500.00
Ton 40 $ 60 .00
LF 444 $ 3 .00
EA 7 $ 250 .00
SF 1,927 $ 6 .00
Storm Sewer Construction Items Subtotal
Detention Pond 1 Construction Items
LS 1 $ 6,500 .00
15" HDPE Pipe, complete in place (Non-Structural), complete in place LF 60 $ 30 .00
15 " -6H: IV Concrete SET, complete in place EA 2 $ 1,500 .00
4' Wide Concrete Flume, complete in place SF 1,050 $ 6.00
Detention Pond 1 Construction Items Subtotal
Detention Pond 2 Construction Items
Pond Excavating and Grading, complete in place LS I $ 10 ,000 .00
Connect to Existing Inlet -including remove & replace existing fence and repairs LS I $ 2,000 .00 to the vard comolete in olace
18" HDPE Pipe, complete in place (Non-Structural) LF 75 $ 35 .00
Concrete Pond Outlet Structure, complete in place EA I s 2,500.00
Detention Pond 2 Construction Items Subtotal
Page 2 of 4
$ 10,170 .00 100% $ 10 ,170 .00 $ -
$ 8,720 .00 100% $ 8,72 0 .00 $
$ 2,400 .00 100% $ 2,400 .00 $ -
$ 5,600.00 100% $ 5,600.00 $ -
$ 7,000 .00 100% $ 7,000.00 $ -
$ 2,750.00 100% $ 2,750 .00 $ -
$ 7,000.00 25% $ 1,750.00 $ 5,250.00
$ 2,400 .00 0% $ $ 2,4 00 .00
$ 1,332 .00 100% $ 1,332.00 $ -
$ 1,750 .00 0% $ -$ 1,75 0 .00
$ 11 ,5 62 .00 85% $ 9,827.70 $ 1,734 .30
s 60,684.00 Remaining Subtotal s 11,134.30
$6,500 100% $ 6 ,500 .00 $ -
$1,800 100% $ 1,800 .00 $ -
$3,000 100% $ 3,000 .00 $ -
$6,300 100% $ 6,300 .00 $
$17,600 Remaining Subtotal s -
$10,000 100% $ 10,000 .00 . s
$2,000 100% $ 2,000 .00 s -
$2,625 100% $ 2,625 .00 $
$2,500 0% $ -$ 2,500 .0 0
$17,125 Remaining Subtotal s 2,500.00
')i. Please confirm that Detention Pond 1 's outflow to Rock Prairie Road drainage swale
has adequate armoring.
Additional Concrete and rock riprap was added at this location to provide
additional armoring.
14 Please provide the flow depth and velocity at mid-block cross drainage valley gutter,
and cross lot drainage swale.
A drainage addendum is included in this submittal with an Appendix E
showing depth of flow and velocity at this location. An Appendix F is
included evaluating the cross lot drainage swale.
1 . Please Justify and explain how the flow in the Private Drainage on all Blocks is being
discharge to the street.
Drainage will flow over the sidewalk as sheet flow and into the curb and
gutter. Appendix F evaluates depth of flow over sidewalk.
(1' 6; Please fix, the drainage along Block 1 adjacent to Buena Vida Subdivision. It seems
to flow into the rear lot of Buena Vida Subdivision.
A drainage swale is proposed in this location taking drainage over the
sidewalk into the Kate Lane curb and gutter. Spot elevations are shown on
the grading plan to indicate intent.
yf. Please confirm that existing structures on Diamond Storage property is not adjacent
to the proposed drainage swale .
The berm from the pond is proposed to extend between the drainage swale
and the Diamond Storage property. J'. Please verify that the elevation of Diamond Storage property adjacent to Detention
Pond 1 & common area is at least 327 feet. If not please provide a 327 feet high
Berm along Detention Pond 1 & common area adjacent to Diamond Storage
property.
The detention pond berm is proposed in this area.
19. The proposed street intersection does not meet the "dried up" guideline, please
provide additional justification .
The intersections in this project are either "local-local" or "collector-local"
in which case valley gutters are acceptable. On Towers Parkway the valley
gutters are proposed parallel to Towers Parkway. Appendix B1 and Exhibit
C have been updated to evaluate the depth of flow at the curve return of the
Kate Lane and Summerway Drive intersection.
20. Please define the flow path for emergency spillway of Detention Pond 2. In the future
development of Phase 2, what's the orientation and flow path for the emergency
Spillway of Detention Pond 2?
The emergency spillway will only be used in the clogged condition of the
outflow structure. It is not intended for use unless under extreme
conditions. In the case that the outflow structure is clogged, the runoff will
continue in a northerly direction towards The Barracks Subdivision similar
to existing conditions. In the future the detention pond will be re-designed
and likely connect to the infrastructure into a future section of the Barracks
Subdivision and the future overflow spillway will likely be directed to a
street right of way.
JA· Please redesign concrete flume 1 & 2 in such a way that the flow through the -h----· :--· ....... -..-:"-=--· "'-'·' '"'--:--"'-'·' ,., __ ... a.... _....,, ·-"-L,..,. __ .,.. __ ..__ .... .._h_"'"" -.... :.i.:--1 ,., ___ ... L-vl IQl II lvl 1;:, ;:,uu-:-v11uva1 11uvv. uc;:,1~11 11uvv Uvt-Jlll 111u;:,l uc ~1calv1 L11a11 vllllva utµu1.
Also please label each concrete flume uniquely on the construction plan.
The slope of concrete flume is now 0.75%. The cross-section of concrete 1 flume 2 and the slope have changed so that the flow depth is greater than ,
\ _ the critical depth. A revised appendix 83 is included in this submittal.
~Please base culvert design on TxDOT minimum details, or provide a structural
analysis with justification of the proposed box culvert.
The 24" x 15" box culvert design exceeds the minimum TXDOT design
requirements and details for Single Box Culverts, Cast in Place, O' fill,
Detail SCC-3 & 4. A comparison to a 3' x 2' box for the wall thickness and
rebar spacing is as follows:
Concrete
Design TxDOT Detail
Top Slab Thickness 7"+ 7"
Wall Thickness 8" 7"
Bottom Thickness 8" 7"
Reinforcing Steel
Top Slab Thickness To Material
Bottom Material 7"
Transverse Material 18"
Wall Thickness To Material 10"
Bottom Material 18"
Transverse Material 18"
Bottom Thickness Top Material #4 7"
Bottom Material #4 10"
Transverse Material #4 18"
This design for a direct travel box culvert has previously been constructed
with a greater span than the 24" span proposed for this box culvert and has
performed well. The box culvert design will support the anticipated loads
for the street.
'f1. Please verify and place note on the plan that water services will be left between 2
feet and maximum of 3 feet deep at the point of terminus by developer's contractor.
Also note that a ball valve is required at the point of terminus.
Notes have been added to all of the water construction sheets.
'(4· Please provide adequate Public Utility easement on Block 1 Lots 9 & 10 in such a
· way that t he centerline of the sewe r lines are no closer than 5.5 feet to the edge of
easement , and that the wyes do not pass the easement.
A 15' PUE is shown on the plat and the plans. j,. Please Note that the existing sewer line on Kate Lane is 6". Please fix the
construction plans & Sewer report reflecting this. Please provide documentation that
the existing 6" line through Buena Vida Subdivision has sufficient Capacity to serve
the increase flow from Equinox Subdivision.
The plans have been corrected to show the sewer line at Kate Lane being
6". A revised sewer report is included in this submittal. The 6" line
through Buena Vida Subdivision is analyzed in the revised report.
'f8. Please fix the Stationing for Sewer Line S-3. The stationing on profile are not
matching the plan.
The stationing has been fixed for this line. Jlf ·Due to the depth of Sewer Line S-3 & S-2, we would require an additional 5 feet
easement totaling to 15 feet Public Utility Easement on all the lots adjacent to these
sewer lines .
A 15' PUE is added to all lots adjacent to sewer lines J'-Sewer Line 3 from Stationing 3+32 to Stationing 4+50 does not meet B/CS minimum
slope, please provide justification.
Minimum slope for an 8" pipe is 0.55%. Since the outflow pipe is a 6" pipe,
the sewer system in this project will all be 6" pipe
,)9. P rovide a typ ical layout detail of water meter, cleanout, and transformer. To ensure that
adequate fits w ithin proposed easement when you include other private utilities. Please
confirm with BTU . \.'t'f't'
Due to the wider street an additional 5' was added to the PUE where necessary. A
detail was added to sheet 2 showing the proposed layout. This detail was sent to
Walter Williams BTU and an email with his approval is attached to this submittal.
The detail is in accordance with BTU's Guidelines. ~· Please provide Street Sign table. If you have not received block ranges , contact Robin
rkra use@cstx.gov.
A street sign table is included in the plans. /1. Should there not be a streetlight on Towers Parkway and Rock Prairie Road?
A street light has been added at this location. 'f2.· Please remove ADA crossing ramps for Towers Parkway next to Sophies Lane.
These ADA ramps have been removed from the plans .
.,,: On block 3 , the finish floor elevation for the lots seems to be the same elevation as the top
of Katie Lane 's pavement. We recommend to raise the finish floor elevation by at least 6".
The finished floor of all the lots on this block has been raised 6".
STAFF REVIEW COMMENTS NO. 2
Project: Equinox Subdivision Ph 1 (Fp) (14-00900181)
ENGINEERING COMMENTS NO. 2
1. Sorry for the confusion on the first set of comments. Note 4 on construction sheet
3/16 should say:
PAVEMENT STRUCTURE FOR TOWERS PARKWAY SHALL BE AS FOLLOWS:
6" LIME STABILIZED SUBGRADE OR CEMENT STABILIZED SUBRADE AS
REQUIRED BY SOIL P.I.
5" HMAC BASE OR 8" CRUSHED LIMESTONE BASE MATERIAL
2 " HOT MIX ASPHAL TIC CONRETE
Please fix and update cost estimate reflecting this.
The note has been corrected and the line item for the cost estimate has
been corrected on an updated engineer's estimate.
2. Please fix culvert details on construction sheet 10/16. The units shown on the cross
section detail are in feet.
The details have been corrected.
3. Confirm that all the flow from Sueda Vida & Williamsgate Phase 1 subdivision have
been taken into account in the Sewer report.
According to the City's GIS there are 95 lots in Sueda Vida and
Williamsgate Phase 1. Manholes EX1 through EX6 have 95 lots taken into
account as shown in the Sewer Report.
4. Define the cross drainage swale between the lots and lead the concentrated flow
under the sidewalk.
Trench drains have been added where the cross drainage swales disperse
water into the streets. A callout has been added to the appropriate street
sheets and the Grading Plan. Also, A trench drain detail has been added to
sheet 5116. 7 Trench Drains have been added to the revised Engineer's
Estimate
5. Please grade outfall of emergency spillway of the Detention Pond 2 away from
existing homes.
The emergency spillway has been moved so that the outfall is directed
away from the existing homes.
6. Appendix 83 for Addendum to Drainage Report is showing the concrete flume slope
as 75%. The slope typo seem to have no effect to the ith-year storm calculations. Is
this cell not linked to the flow calculation? Please double check and fix.
The typo has been fixed. It did not affect the calculation because the typo
is only in the summary. The Channel Report shows the full calculations.
7. Double check engineering estimate for street construction items. Subtotal do not
match on page 1 and 4.
The Engineer's Estimate has been updated.
Q;g;chultz Engineering, LLC
July 17, 2014
Alan Gibbs , P .E.
City Engineer
Development Services
City of College Station
College Station, Texas
RE: Letter Acknowledging City Standards -Equinox Subdivision -Phase 1
Dear Mr. Gibbs:
Office: 979.764.3900
Fax : 979.764.3910
The purpose of this letter is to acknowledge that the construction plans for the water,
sanitary sewer, streets and drainage for the above-referenced project, to the best of my
knowledge , do not deviate from the B/CS Design Guideline Manual except that due to
the flat terrain for the portion of the site adjacent to Rock Prairie Road, there is not
enough elevation change to have curb inlets at the low point in Sophies Lane. A valley
gutter for mid-block drainage is proposed in this location instead of curb inlets with storm
sewer pipes. The valley gutter discharges into a concrete channel, which conveys the
runoff to Detention Pond 1.
I also acknowledge that, to the best of my knowledge, the details provided in the
construction plans are in accordance with the B/CS Standard Details.
Sincerely,
F-12327
SCHULTZ ENGINEERING, LLC.
P.O . Box 11995 • College Station , Texas 77842
schultzeng in eeringllc.com
Cm OF COll.EGE STATION
H-efT-AON ~·
FOR OFFICE USE ONLY
CASE NO.: 1 L..f . I fl \
DATESUBMITTEO :O\-Z.lO · IS.
TIME: 3: ()0
STAFF: ..,,.E\--'-"''j<-------
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to dearfy define the purpose of your submittal .
D New Project Submittal
0 Incomplete Project Submittal -documents needed to complete an application . Case No.:
1$J. Existing Project Submittal. case No.: \ L-\ · l 0 l
I
Project Name \-i.. @ R._blK pr ~ i r\ e
Contact Name Phone Number
~-~~---~~~~
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
O Comprehensive Plan Amendment
0 Rezoning Application
D Concfrtional Use Pennit
0 Prefiminary Plan
O Final Plat
O Development Plat
O Site Plan
0 Special District Site Plan
0 Special Oistriet BUilding I Sign
O Landscape Plan
0 Non-Residential Architectural Standards
0 Irrigation Plan
0 Variance Request
O Development Permit
D Development Exaction Appeal
0 FEMA CLOMAICLOMRILOMNLOMR
0 Grading Plan
0 Other -Please specify below
INFRASTRUCTURE ANP ENGINEERING OQCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
O Comprehensive Plan Amendment
0 TxDOT Driveway Permit
0 TxDOT Utility Pennit
D Drainage Letter or Report
O Fire Flow Analysis
Special Instructions:
10/10
O waterline Construction Documents
D Sewerline Construction Documents
0 Street Construction Documents
0 Easement Application
F{i. Other -Please specify
~-
[ -~~--::_-_, .. ·_ ·~·. _ . ..r-· -_
CITY OF C OJ...LEGE STATION
Home o/Texas A&M Univers ity"
FOR OFFICE
CASE NO .:
DATE SUBMITIED: ~~~~-+--
TIME: ~/ti)
STAFF: -+---+""'----------
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
Existing Project Submittal. Case No .: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHULTZ P.E.
---------
Phone Number 979-764-3900 --------------
We are transmitting the following for Planning & Development Services to review and comment (check all that apply):
D Comprehensive Plan Amendment D Non-Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Permit D Variance Request
D Preliminary Plan D Development Permit
D Final Plat D Development Exaction Appeal
D Development Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D Site Plan D Grading Plan
D Special District Site Plan ~ Other -Please specify below
D Special District Building I Sign Engineer's Estimate to Complete
D Landscape Plan
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
10/10 Print Form
~hultz Engineering, LLC
December 5, 2014
Kevin Ferrer
Graduate Civil Engineer
City of College Station
1101 Texas A venue
College Station, TX 77840
Re: Equinox Subdivision Phase 1-14-00900181
Dear Mr. F errer:
Office: 979 .764 .3900
Fax : 979 .764.3910
The Construction Contractor is having difficulty with compaction of the lime
stabilized subgrade on a small section of Towers Parkway for the abo v e referenced
project. The Contractor is requesting to use fly ash to stabilize the subgrade so that
it will h ave adequate strength and stability to support the curb and gutter and the
pavement section. I recommend this method of stabilization be allowed for this
project.
If you have any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
F-1 2327
SCHULTZ ENG INEERING, LLC.
P.O . Box 11995 • College Station , Texas 77842
schultzeng ineeringll c .com
CITY OF C OLLEGE STATION
Home o/Texas A&M University"
FOR OFFICE USE ONLY
CASE NO.: \~L~\ -_\~<(}~I -,--__
DATE susM1nED: 12\os/1 LJ
TIME : _,\r:-·-'-0_0 _____ _
STAFF : _f\~:r~------
PLANNING & DEVELOPMENT SERVICES
TRANSMITTAL LETTER
Please check one of the options be low to clearly define the purpose of your subm ittal.
D New Project Submittal
D Incomplete Project Submittal -documents needed to complete an application . Case No .:
Existing Project Subm ittal. Case No.: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHULTZ P.E.
~-------~
Phone Number -'-9_79_-_7_64_-_3_90_0 ________ _
We are transmitting the following for Plann ing & Development Services to review and comment (check all that app ly ):
D Comprehensive Plan Amendment D Non -Residential Architectural Standards
D Rezoning Application D Irrigation Plan
D Conditional Use Perm it D Variance Request
D Preliminary Plan D Development Permit
D Final Plat D Development Exaction Appeal
D Develop ment Plat D FEMA CLOMA/CLOMR/LOMA/LOMR
D S ite Plan D Grading Plan
D Special D istrict Site Plan ~ Other -Please specify below
D Special D istrict Building I Sign Letter to Kevin Ferrer
D Landscape Plan
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following a re included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Dri veway Perm it D Sewerline Construction Documents
D TxDOT Utility Perm it D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Specia l Instructi ons:
10/10 I -· Print Form
ENGINEERING COMMENTS NO. 1
1. Please show the proposed PUE line and waterline that is going through the lot, and ensure that
the portable building is not in the PUE and is at least 20 feet away from the waterline.
FIRE
The proposed PUE line and waterline is currently being redesigned away from this area,
therefore no easement will exist in this area.
1 . I couldn't tell ifthe Portable was covered by a Fire Hydrant.
Existing fire hydrants have been located. Please see attached revised sheet Al.11 .
SANITATION
1. Sanitation is ok with this project.
No response required at this time.
If further information is required to address the above listed comments please do not hesitate to
contact the office.
Thank you,
~:7.
Ben Lamons
Enc: Al.11
Member Ameri c an I n s ti tute of Architec t s . 7915 F.M . 1 960 West Suite 214 . Hous t on Texas 77070
Ph 281.671.2300 ·Fax 281 .671.2313. vlkarc h 1tects.com
Ricky Flores
From:
Sent:
To:
Subject:
Hey Ricky,
Walter Williams <williams@btutilit ies.com>
Tuesday , August 26, 2014 3:43 PM
Ricky Flores
RE : Equinox Phase 1
I'm sorry for the delayed response. I am just getting back to the office . David and I reviewed the layout and it looks fine.
Than k you ,
W alte r W i lli am s
BTU Line Design
979 -821 -5766 office
979 -200 -044 1 ce ll
979 -82 1-57 96 fax
Th is e-mail and /or attachment is for the sole use of the intended recipient(s)
and may contain confidential and /or legally privileged information . Any
unauthorized review, use , disclosure or distribution is prohibited . If you are
not the intended recipient , please contact the sender by reply e-mail and
destroy all electronic and paper copies of the original message and any
attachments .
From: Ricky Flores [mailto:ricky@schultzengineeringllc.com]
Sent: Tuesday, August 26, 2014 2:59 PM
To: Walter Williams
Subject: Equinox Phase 1
Walter,
Can I get your blessing on this detail I made for our construction plans? I followed the details from BTU's guideline I just
proposed a set distance off of the ROW. I couldn't find a set distance in the guidelines .
Thanks
Ricky Flores
This e-mail and/or attachment is for the sole use of the intended recipient(s)
and may contain confidential and /or legally privileged information. Any
unauthorized rev iew, use , disclosure or distribution is prohibited . If you are
not the intended recipient, please contact the sender by reply e-mail and
destroy all electronic and paper copies of the original message and any
attachments .
1
DEVELOPMENT PERMIT
PERMIT NO. 14-181
CITY OF COLLECE 5TM ION
iJ.f.U1 1fi~ cf [)t'J,'C'i;;flllNJ/ 5".-"UC
FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA
RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE
SITE LEGAL DESCRIPTION:
Equinox Subdivision Phase 1
DATE OF ISSUE: 9/12/2014
OWNER:
Charles & Mary Turner
3270 Rock Prairie Road West
College Station, TX 77845
TYPE OF DEVELOPMENT:
CONDITIONS:
SITE ADDRESS:
3270 Rock Prairie Road West
DRAINAGE BASIN:
Bee Creek Trib. "B"
VALID FOR 24 MONTHS
CONTRACTOR:
Full Development Permit
1. No work beyond limits covered in permit is authorized .
2. The permit may be revoked if any false statements are made herein . If revoked, all work must cease until permit is re-
issued .
3. The permit will expire if no significant work is progressing within 24 months of issuance .
4 . Other permits may have been required to fulfill local, state and federal requirements . Construction will be in
compliance with all necessary State and Federal Permits .
5. Stormwater mitigation , including detention ponds will be constructed first in the construction sequence of the project.
6. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to
insure that all debris from construction , erosion , and sedimentation shall not be deposited in city streets , or existing
drainage facilities . Construction Site Notice or Notice of Intent (NOi) along with Stormwater Pollution Prevention Plan
(SWP3) w ill be kept and maintained on-site during construction as per TPDES permitting requirements. If it is
determined that the prescribed erosion control measures are ineffective to retain all sediment on-site , it is the
Contractor's responsibility to implement measures that will meet City, State , and Federal requirements .
7. All disturbed areas will be re-vegetated prior to Letter of Completion or Certificate of Occupancy .
8 . All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with the
Landscap ing and Tree Protection Section of the City's Unified Development Ordinance , prior to any operations of this
permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and
required to remain is strictly prohibited . The disposal of any waste material such as , but not limited to , paint , oil ,
solvents , asphalt , concrete , mortar, or other harmful liquids or materials within the drip line of any tree required to
remain is also prohibited .
9. All construction shall be in accordance with the stamped approved plans and specifications for the above-named
project and all of the codes and ordinances of the City of College Station, as well as State and Federal Regulations
that apply . Only those deviations from BCS Unified Design Guidelines , Specifications and Details specifically
requested and approved will be allowed .
10 . Special Conditions :
I, ________________ , the Contractor, hereby agree to comply with all conditions herein .
Contractor Signature Date
Phone number E-mail
I hereby grant this permit for development. Contact Ts'fae { Ko;fe 777-hf7/ , the Public Works
Inspector assigned to this project 24 hours prior to beginning construction for scheduling required Inspections .
City ~resentative o/-U -).O/lf
Date
w
~ a_
("')
N
TEXAS COM::MISSION ON ENVIRONMENTAL QUALIIT
Texas Pollutant Discharge Elimination System
Stormwater Construction General Permit
The Notice of1ntent (NOI) for the facility listed below WqS received on September 12, 2014 . The intent to clischarge storrnwater associated with
oonstructipn activity under the terms and conditions imposed by the Texas Pollutant Discharge Elimination System (TPDFS) stormwater
construction general permit TXR.150000 is acknowledged. Your facility's TPDES construction storrnwater general pennit number is:
TX1l150012826
C<>verage Effective: September 12, 2014
TCEQ 's stormwater construction general permit requires certain stonnwat er pollution prevention and control measures, possible monitoring and
reporti ng, and periodic inspections. Among the conditions and requirements of this permit, you must have prepared and implemented a stormwater
pollution prevention plan (SWP3) that is tailored to your construction site. As a facility authorized to discharge under the stonnwater construction
general permit, all terms and conditions must be complied with to maintain coverage and avoid pos sib1 e penalties.
Project/Site Information :
RNi o6438427
EQUJNOX SUBDJVISION
3270 ROCK PRAIRIE RD W
COLLEGE STATION, TX 77845
BRAWS County
Operator:
CN602575839
SCHIEFFER CORP
2 1 03 TABOR RD
BRYAN , TX 77803
Thi s permit expires on March 05, 2018, unless otherwise amended . If you have any questions related to processing, you may contact the Stormwater
Processing Center by email at swpermit@t ceq.tex.as.gov or by telephone at (512) 239-3700. For technical issues, you may cc>ntact the stormwa ter
technical staff by email at swgp@tceq.texas.gov or by telephone at (512) 239-4671 . Also , you may obtain information on I he TCEQ web site a t
http://WWW2 .tceq .texas .gov/wq_dpa/index .cfm. A copy of this document should be kept with your SWP3-
Issued Date: September 12, 2014 FOR THE COMMISSJON
TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
Texas Pollutant Discharge Elimination System
Stormwater Construction General Permit
The Notice of Intent (NOI) for the facility listed below was received on September 12, 2014. The intent to discharge stormwater associated with
construction activity under the terms and conditions imposed by the Texas Pollutant Discharge Elimination System (TPDES) stormwater
construction general permit TXR150000 is acknowledged. Your facility's TPDES construction stormwater general permit number is:
TXRt50012826
Coverage Effective: September 12 , 2014
TCEQ's stormwater construction general permit requires certain stormwater pollution prevention and control measures, possible monitoring and
reporting , and periodic inspections. Among the conditions and requirements of this permit, you must have prepared and implemented a stormwater
pollution prevention plan (SWP3) that is tailored to your construction site. As a facility authorized to discharge under the stormwater construction
general permit, all terms and conditions must be complied with to maintain coverage and avoid possible penalties.
Project/Site Information:
RN106438427
EQUINOX SUBDIVISION
3270 ROCK PRAIRIE RD W
COLLEGE STATION, TX 77845
BRAZOS County
Operator:
CN602575839
SCHIEFFER CORP
2103 TABOR RD
BRYAN, TX 77803
This permit expires on March 05, 2018, unless otherwise amended. If you have any questions related to processing, you may contact the Stormwater
Processing Center by email at swpcrmit@tceq.texas.gov or by telephone at (512) 239-3700. For technical issues, you may contact the stormwater
technical staff by email at swgp@tceq .texas .gov or by telephone at (512) 239-4671. Also, you may obtain information on the TCEQ web site at
http://www2.tceq.texas.gov/wq_dpa/index.cfm. A copy of this document should be kept with your SWP3.
Issued Date: September 12, 2014 FOR THE COMMISSION
DEVELOPMENT PERMIT
PERMIT NO. 14-181
CITY OF C OLLl:.GE S·rnTION
i¥.J11"i!tf & l~'l'1i;pmm1 ~ua
FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA
RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE
SITE LEGAL DESCRIPTION:
Equinox Subdivision Phase 1
DATE OF ISSUE: 9/12/2014
OWNER:
Charles & Mary Turner
3270 Rock Prairie Road West
College Station, TX 77845
TYPE OF DEVELOPMENT:
CONDITIONS:
SITE ADDRESS:
3270 Rock Prairie Road West
DRAINAGE BASIN:
Bee Creek Trib . "B"
VALID FOR 24 MONTHS
CONTRACTOR:
Full Development Permit
1. No work beyond limits covered in permit is authorized .
2. The permit may be revoked if any false statements are made herein. If revoked, all work must cease until permit is re -
issued .
3. The permit will expire if no significant work is progressing within 24 months of issuance .
4 . Other permits may have been required to fulfill local , state and federal requirements . Construction will be in
compliance with all necessary State and Federal Permits .
5. Stormwater mitigation , including detention ponds will be constructed first in the construction sequence of the project.
6. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to
insure that all debris from construction , erosion , and sedimentation shall not be deposited in city streets , or existing
drainage facilities. Construction Site Notice or Notice of Intent (NOi) along with Stormwater Pollution Prevention Plan
(SWP3) w ill be kept and maintained on-site during construction as per TPDES permitting requirements . If it is
determined that the prescribed erosion control measures are ineffective to retain all sediment on-site , it is the
Contractor 's responsibility to implement measures that will meet City , State , and Federal requirements .
7. All disturbed areas will be re-vegetated prior to Letter of Completion or Certificate of Occupancy .
8. All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with the
Landscap ing and Tree Protection Section of the City 's Unified Development Ordinance , prior to any operations of this
permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and
required to remain is strictly prohibited . The disposal of any waste material such as , but not limited to , paint , oil ,
solvents , asphalt , concrete , mortar, or other harmful liquids or materials within the drip line of any tree required to
remain is also prohibited .
9. All construction shall be in accordance with the stamped approved plans and specifications for the above-named
project and all of the codes and ordinances of the City of College Station , as well as State and Federal Regulations
that apply . Only those deviations from BCS Unified Design Guidelines , Specifications and Details specifically
requested and approved will be allowed .
10 . Special Conditions :
l ,_(J~lt~a~v_f<_e_b __ ~ __ , -~--=--_o_/_~ ____ , the Contractor , hereby agree to comply with all conditions herein . .
Contractor Signature Date '
q1 er -'17 6'-q 5" JI
Phone number E-mail
I hereby grant this permit for development. Contact I.s.Y4e[ Ko;fe 771-laf7/ , the Public Works
Inspector assigned to this project 24 hours prior to beginning construction for scheduling required Inspections .
City ~resentative '-12 -io11f
Date
. '
Sewer System Report
for
Equinox Subdivision
Phase 1
College Station, Texas
July 2014
Revised August 2014
Prepared By:
Schultz Engineering, LLC
TBPE Firm No. 12327
P.O. Box 11995
College Station, TX 77842
2730 Longmire Drive, Suite A
College Station, Texas 77845
(979) 764-3900
f'-12327
SCHULTZ ENGINEERING. U.C.
GENERAL INFORMATION
Equinox Subdivision is a 21 .842-acre development in the area generally bounded by Rock Prairie
Road to the south, Buena Vida and the Barracks II Subdivisions to the east and north. It is zoned GS
and TH and is comprised of residential land uses as shown on Exhibit A. There are 140 residential lots
planned for the site. The area surrounding the site is residential with an undeveloped tract to the
southwest.
Phase 2 of this subdivision will have a different sewer outfall.
Sewer service to the area is provided by a 6" line running along Kate Lane. This line will be the
outfall for phase 1 of this development. This report includes an analysis of the existing 6" sewer line
through the Buena Vida and Williamsgate Subdivision to where it connects to the 12" line. This
development is at the top of a hill and will not be serving any adjoining tracts as the tracts across Rock
Prairie Road already have sewer service and the Mayo tract will get service from the Barracks II
Development.
Design Criteria:
Primary Sewer Ouifall: Phase 1 -6" sewer line at existing terminus of Kate Lane
Domes tic Demand:
Avg. Pop D ensity:
A verage Flow:
Peaking Factor:
Pipe:
Applicable Exhibits :
Conclusion:
2.67 people per lot
100 gpd/cap or 267 gpd per lot
4
PVC D3034 SDR 26
Exhibit A-Overall Sewer System Layout
Exhibit B -Sanitary Sewer Analysis Spreadsheet
The sewer system shown in Exhibit A has been laid out using the criteria in the Bryan/College Station
Design Guidelines and TCEQ. It is analyzed assuming peak flow conditions when this portion of the
subdivision is fully developed . The spreadsheet in Exhibit B shows all lines depicted in Exhibit A to
be capable of carrying the flows that come to them under these conditions. This analysis will be used
as the basis for all subsequent sewer line designs in the subdivision. The system will function as
intended as long as the line sizes and slopes are equal to or greater than those shown herein .
EXHIBIT A
Overall Sewer System Layout
Exhibit B
Sanitary Sewer Analysis Spreadsheet
Line From I To ;; . ., 5 "Cl ·5 a:: 267 Contribnting Flows g I. au I:~ .. ::> .. Q ~ ... 1200 .!! ::: .. E a u 1500 ;; c 0 -~ -~ .5 1050 GPO per,GPD per,GPD perlGPD per Lot Acre Acre Acre $ .. "Cl 0 z E~ 0 0 ~z ~ r;;: E ~"' ;c: ~ 0 0 I>: z .. a -~ e ] -;; ·i:: ... c :> u Exhibit B The Barracks II Sewer Analysis Spreadsheet Flow Calcnbtions I ! Average Daily Flows (ADF) Infiltration I Peaking (10"/o ADF) Factor Peak Flows ) Size Material I Milnnings n I Inside Diameter Pipe Calculations Manning Friction Slope Pei1k Flows ! I Min. I Actual Slope i Design for Existing I , Slope Peak or Designed I Flows Systems I I MR# I MH # I Lots I Acres I Acres I Acres I GPO ! GPO I GPO I CFS I CFS I I CFS I (in ) I I I Inches I 'Vo I 'Vo I ~. Pipe Slope Check I ! Peak Flow Depth Inches I 6 5 16 0 0 I 0 4,272 I -4,272 0.0066 0.0007 4.00 0.027 6 03034 0.013 5.793 0.617 I 0.80 ! 1.00 -i-OK 1 1.06 I 5 4 5 0 0 I 0 1,335 ! 4,272 5,607 0.0087 0.0009 4.00 0.036 6 03034 0.013 5.793 0.683 0.8-0 I 1.00 I OK i -us I 4 1 6 0 0 I 0 1,602 j 5,607 7,209 0.0112 0.0011 4.00 0.046 6 03034 0.013 5.793 0.729 0.80 I 1.00 I OK u: 3 1 5 0 0 I 0 1,335 I -1,335 0.0021 0.0002 4.00 0.008 6 03034 0.013 5.793 0.398 0.80 I 1.00 I OK 0.73 --2 I I 19 I 0 I 0 I 0 I 5,073 5,073 0.0078 0.0008 4.00 0.032 6 03034 I 0.013 I 5.793 I 0.666 I 0.80 + 1.00 I OK ; 1.13 I I EX 1 0 0 0 0 l 13,617 13,617 0.0211 0.0021 4.00 0.086 6 03034 0.013 5.793 0.854 ~· 1.00 O~D-EX I I EX 2 I 0 I 0 I 0 I 0 I -I 13,617 I 13,617 I 0.0211 I 0.0021 I 4.00 I 0.086 I 6 I 03034 I 0.013 I 5.793 I 0.854 I 0.80 I 1.00 I OK I 1.73 EX 2 EX 3 I 31 I 0 I 0 I 0 1--8,277 13,617 21,894 . 0.0339 0.0034 • 4.00 0.139 6 I 03034 0.013 5.793 1.530 I 0.80 ·-·H·90 OK I 1.89 EX 3 EX 4 25 0 0 0 6,675 21,894 28,569 ' 0.0442 0.0044 ; 4.00 0.181 6 03034 0.013 5.793 0.839 0.80 0.80 OK , 2.54 I EX 4 I EX 5 I 39 I 0 I 0 I 0 !0,413 28,569 38,982 i 0.0603 0.0060 4.00 0.247 6 03034 0.013 ' 5.793 0.798 0.80 I 0.80 ~~:.~-EX 5 EX 6 0 0 0 0 38,982 38,982 0.0603 0.0060 4.00 0.247 6 03034 0.013 I 5.793 1.145 0.80 1.10 OK i 2.76 Page I of I
t • I •
Sewer System Report
for
Equinox Subdivision
Phase 1
College Station, Texas
July 2014
Prepared By:
Schultz Engineering, LLC
TBPE Firm No. 12327
P.O. Box 11995
College Station, TX 77842
2730 Longmire Drive, Suite A
College Station, Texas 77845
(979) 764-3900
F-12327
SCHULTZ ENGINEERING, LLC.
) j ••
GENERAL INFORMATION
Equinox Subdivision is a 21.842-acre development in the area generally bounded by Rock Prairie
Road to the south, Buena Vida and the Barracks II Subdivisions to the east and north. It is zoned GS
and TH and is comprised of residential land uses as shown on Exhibit A. There are 140 residential lots
planned for the site. The area surrounding the site is residential with an undeveloped tract to the
southwest.
Phase 2 of this subdivision will have a different sewer outfall.
Sewer service to the area is provided by an 8" line running along Kate Lane. This line will be the
outfall for phase 1 of this development. This development is at the top of a hill and will not be serving
any adjoining tracts as the tracts across Rock Prairie Road already have sewer service and the Mayo
tract will get service from the Barracks II Development.
Design Criteria:
Prima ry S ewer Ouifall: Phase 1 -8" sewer line at existing terminus of Kate Lane
Domestic D e mand:
A vg. Pop D e ns ity:
Average Flow :
P eaking Fac tor:
Pipe:
Applicable Exhibits:
Conclusion:
2 .67 people per lot
100 gpd/cap or 267 gpd per lot
4
PVC D3034 SDR 26
Exhibit A -Overall Sewer System Layout
Exhibit B -Sanitary Sewer Analysis Spreadsheet
The sewer system shown in Exhibit A has been laid out using the criteria in the Bryan/College Station
Design Guidelines and TCEQ . It is analyzed assuming peak flow conditions when this portion of the
subdivision is fully developed. The spreadsheet in Exhibit B shows all lines depicted in Exhibit A to
be capable of carrying the flows that come to them under these conditions. This analysis will be used
as the basis for all subsequent sewer line designs in the subdivision. The system will function as
intended as long as the line sizes and slopes are equal to or greater than those shown herein.
EXHIBIT A
Overall Sewer System Layout
I . '
Exhibit B
Sanitary Sewer Analysis Spreadsheet
ExhibitB ... The Barracks II Sewer Analysis Spreadsheet Line Contributing Flows Flow Calculations Pipe Calculations Cii ~ .. 2 QJ !. u " .§ e :.:: C> .. :; O.= < e-:.:: .., '-~ .., .: = ;;; ~-C> Actual Slope ·;; e z .. .E ~ ~ Manning Min. Design Pipe Peak .. VJ : Q C> e .., Average Daily Flows infiltration Peaking Peak inside for Existing or From To g:: u ..: .... Q. 'g Size Material Mannings n Friction Slope Slope Peak Slope Flow e~ = ;;;> C> (ADF) (10%ADF) Factor Flows Diameter Designed 267 1200 1500 1050 '-~ e z Peak Flows Flows Check Depth s ~ C> Systems GPDper GPO per GPDper GPDper C> ; -= Lot Acre Acre Acre ;.: u MH# MH# Lots Acres Acres Acres GPD GPD GPD CFS CFS CFS (in.) Inches % % % Inches 6 5 16 0 0 0 4,272 4,272 0.0066 0.0007 4.00 '0.027 6 D3034 0.013 5.793 0.570 0.80 0.90 OK 1.08 5 4 5 0 0 0 1,335 4,272 5,607 0.0087 0.0009 4.00 0.036 6 D3034 0.013 5.793 0.683 0.80 1.00 OK 1.18 4 I 6 0 0 0 1,602 5,607 7;109 0.0112 0.0011 4.00 0.046 6 D3034 0.013 5.793 0.729 0.80 1.00 OK 1.32 3 I 5 0 0 0 1,335 1,335 0.0021 0.0002 4.00 0.008 6 D3034 0.013 5.793 0.360 0.80 0.85 OK 0.75 2 I 20 0 0 0 5,340 5,340 0.0083 0.0008 4.00 0.034 6 D3034 0.013 5.793 0.679 0.80 1.00 OK 1.15 I EXIST 0 0 0 0 -13,884 13,884 0.0215 0.0021 4.00 0.088 8 D3034 0.013 7.754 0.445 0.55 0.60 OK 1.87 Pagel of l
Water System Report
for
Equinox Subdivision, Phase 1
College Station, Texas
July , 2014
Prepared Bv:
Schultz Engineering, LLC
TBPE Firm Registration No . 12327
2730 Longmire , Suite A
College ·Station, Texas 77845
979.764.3900
F-12327
SCHULTZ ENGINEERING, LLC.
General Information
Location: The Equinox Subdivision, Phase 1 is a 9.269-acre residential subdivision
being developed immediately southwest of the existing Buena Vida
Subdivision. The Final Plat shows a total of 51 lots in this section.
Primary Water Supply : Water service to the Equinox Subdivision is provided by an existing 8"
line on Kate Lane. The waterlines provide a closed loop within Phase 1.
Phase 2 of Equinox Subdivision will tie into the future development of
Barracks Phase 202 . An 8" waterline is stubbed out to the end of Towers
Parkway for service to the Mayo tract and to be looped back to Towers
Parkway on the CSISD tract.
Land Use: Single family residential
Design Criteria/ Analysis
Primary Water Supply: Existing 8" water line along Kate Lane.
Existing System Pressure Tests :
Flow Hydrant -See Exhibit B
Flowrate: 1,244 gpm
Static Pressure: 65 psi
Residual Pressure: 55 psi
Exhibits:
Fire Flow:
Exhibit A -Water Layout
Exhibit B -Wellborn SUD Flow Test Report
Exhibit C -Analysis Summary
1,000 gpm for Single Family Residential
Domestic Use 1.5 gpm per lot for Single Family Residential
Phase 1 -51Lots==76.5 gpm
The proposed 8"& 6" water lines are in accordance with the BCS Water
Design Guidelines. This report provides the results of the water system
analysis under the fire flow and domestic demand requirements, (1076 .5
gpm) which produced the lowest pressure in the system.
Water System Summary of Phase 1
Summary of Calculations
Domes tic Demand Pressure Min.
Velocity Max.
Pressure Min.
Velocity Max.
Pressure Min.
56.3 psi
0.49 fps
37 .5 psi
6 .87 fps
40 .0 psi
6.87 fps
F ire Flow D emand FH 1
Fire Flow Demand FH 2
Conclusion
Velocity Max.
A s shown above the system exceeds the minimum required
pressures of 35 psi for domestic flow and 20 psi for fire flow in
both analyses . The maximum velocity of 6 .87 fps is less than the
required maximum of 12 fps .
The proposed 8" and 6" water lines meet or exceed all of the
design criteria for the City of College Station. They will provide
adequate water pressure, flowrate and velocity for both domestic
and fire flow demands .
"
EXHIBIT A
WATER LAYOUT
EXHIBIT B
WELLBORN SUD FLOW TEST REPORT
EXHIBIT B
SCHULTZ ENGINEERING, LLC
FIRM #12327
WATER SYSTEM FIRE HYDRANT FLOW TEST REPORT
5-23-2014
Date:
Water System Owner: _Wellborn SUD __________________ _
Development Project:
Equinox Subdivision
Capps Drive and General Parkway
Flow Test Location: ----------------------------
Nozzle size (in.): _2.5 __
55
Pitot Reading (psi): __ _
1244
Flowrate (gpm): ___ _
Discharge Coeff: (c) = 0.90
Flowrate Formula : Q=29 .84cd 2 p1
'
2
c = discharge coeff.
d = orifice size (in)
P = pitot pressure (psi)
Capps Drive and Cullen Trail
Pressure Gauge Location : ---------------------------
65
Static Pressure (psi):
55
Residual Pressure (psi):
2802
Computed Discharge at 20 psi Residual Pressure: QR= _____ _
Note: The flow test and report were prepared in accordance with NFPA 291.
Joe Schultz
Report Prepared by:
Ricky Flores
Others Present : Clenden Adams -Wellborn SUD _
_ Britt Curless _______ _
EXHIBITC
PIPE & JUNCTION ANALYSIS
Pipe
Number
P-1
P-2
P-3
P-4
P-5
P-6
P-7
P-8
P-9
P-10
P-11
P-res
Length (ft)
950
119
172
325
197
218
15
27
264
536
204
19
Exhibit C
WaterCAD Analysis Summary
Pipe Analysis -Domestic Demand
Size (i n) Material
Hazen-
Williams C
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
6 PVC 150
6 PVC 150
6 PVC 150
8 PVC 150
WaterCAD Analysis Summary
Junction Analysis -Domestic Demand
Junction
Elevation Demand Pressure
Junction
(gpm) (psi)
J-1 308 .98 0 64.8
J-2 320 .86 0 59.6
J-3 323.47 0 58 .5
J-4 326.89 18 57
J-5 328.57 14 56.3
J-6 325 .8 0 57.5
J-7 323.3 15 58.6
FH-2 322 .97 0 58.7
J-9 322.37 0 59
J-10 325.15 0 57.8
FH-1 328.1 30 56.5
Flow Velocity
(gpm) (ft/s)
77 0.49
77 0.49
77 0.49
29 0 .19
0 0
15 0 .1
0 0
0 0
0 0
14 0 .16
-16 0 .18
77 0.49
Pipe
Number
P-1
P-2
P-3
P-4
P-5
P-6
P-7
P-8
P-9
P-10
P-11
P-res
Length (ft)
950
119
172
325
197
218
15
27
264
536
204
19
Exhibit C
WaterCAD Analysis Summary
Pipe Analysis -Fire Flow Demand (FH-1)
Size (in) Material
Hazen-
Williams(
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
6 PVC 150
6 PVC 150
6 PVC 150
8 PVC 150
WaterCAD Analysis Summary
Junction Analysis -Fire Flow Demand (FH-1)
Junction
Elevation Demand Pressure
Junction
(gpm) (psi)
J-1 308 .98 0 57 .1
J-2 320.86 0 45.4
J-3 323.47 0 43.4
J-4 326.89 18 40.7
J-5 328 .57 14 39.2
J-6 325 .8 0 40.4
J-7 323 .3 15 42.3
FH-2 322 .97 0 42.4
J-9 322.37 0 42 .7
J-10 325 .15 0 41.5
FH-1 328.1 1,030 37.5
Flow Velocity
(gom) (ft/s)
1,077 6.87
1,077 6.87
1,077 6.87
614 3.92
0 0
15 0 .1
0 0
0 0
0 0
429 4.87
-601 6.82
1,077 6.87
• ' ' >
Pipe
Number
P-1
P-2
P-3
P-4
P-5
P-6
P-7
P-8
P-9
P-10
P-11
P-res
Length (ft)
950
119
172
325
197
218
15
27
264
536
204
19
Exhibit C
WaterCAD Analysis Summary
Pipe Analysis -Fire Flow Demand (FH-2)
Size (in) Material
Hazen -
Williams(
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
8 PVC 150
6 PVC 150
6 PVC 150
6 PVC 150
8 PVC 150
WaterCAD Analysis Summary
Junction Analysis -Fire Flow Demand (FH-2)
Junction
Elevation Demand Pressure
Junction
(gpm) (psi)
J-1 308 .98 0 57.1
J-2 320.86 0 45.4
J-3 323.47 0 43.4
J-4 326 .89 18 40.7
J-5 328.57 14 40
J-6 325.8 0 41.2
J-7 323.3 15 40.9
FH-2 322 .97 1,000 41
J-9 322.37 0 41.2
J-10 325 .15 0 40.1
FH-1 328.1 30 40.2
Flow Veloc ity
(gpm) (ft/s)
1,077 6.87
1,077 6.87
1,077 6.87
29 0 .19
0 0
1,015 6.48
1,000 6.38
0 0
0 0
14 0.16
-16 0.18
1,077 6.87
~hultz Engin e ering , LLC
December 16 , 2014
Kevin Ferrer
Graduate Civil Engineer
City of College Station
1101 Texas Avenue
College Station, TX 77840
Re: 12 at Rock Prairie Subdivision Phase 1-14-00900181
Dear Mr. Ferrer:
Attached is the Fire Hydrant Flow Test Report for 12 at Rock Prairie.
If you hav e any questions , please do not hesitate to call.
Sincerely,
Schultz Engineering, LLC.
P.O . Box 11995 • College Station , Texas 77842
schu ltzengineering llc .com
Office : 979 .764 .3900
Fax : 979 .764.3910
FIRM #12327
WATER SYSTEM FIRE HYDRANT FLOW TEST REPORT
Date: 12-16-2014
Water System Owner: Wellborn SUD
Development Project: 12 at Rock Prairie
Flow Test Location: SW corner of Summerway Drive and Papa Bear Drive
Nozzle Size (inch): _2_.s __ _ Discharge Coeff (c) = 0.90
Pitot Reading (psi): _s_o __ _ Flowrate Forula: 0=29.84cd 2 p112
Flowrate (gpm): 1187 c = discharge coeff.
d = orifice size
P = pitot pressure (psi)
Pressure Gauge Location: NW corner of Summerway Drive and Towers Parkway
Static Pressure (psi): _6_8 __ _
Residual Pressure (psi): _s_o __ _
Compute Discharge at 20 psi Residential Pressure: OR= _2_0_1_5 __ _
Discharge Formula: OR= OF x (hr0 ·54/ht°·54 )
Note: The Flow Test and Report were prepared in accordance with NFPA 291
Report Prepared By: _D_e_v_e_n_D_o_y_e_n ________ _
Ricky Flores
Others Present: Glenden Adams -Wellborn SUD
CITY OF COLLEGE STAT I ON
Home of Texas A&M University•
PLANNING & DEVELOPMENT SERVICES
TRAN SM ITT AL LETTER
Please check one of the options below to clearly define the purpose of your submittal.
0 New Project Submittal
O Incomplete Project Submittal -documents needed to complete an application . Case No.:
[8] Existing Project Submittal. Case No .: 14-00900181
Project Name 12 at Rock Prairie
Contact Name JOE SCHUL Tl P.E.
~~~~~~~~~
Phone Number 979-764-3900
~~~~~~~~~~~~~
We are transmitt ing the following for Planning & Development Services to review and comment (check all that apply):
O Comprehensive Plan Amendment
0 Rezoning Application
0 Conditional Use Permit
D Preliminary Plan
0 Final Plat
D Development Plat
O Site Plan
O Special District Site Plan
0 Special District Building I Sign
0 Landscape Plan
D Non-Residential Architectural Standards
0 Irrigation Plan
0 Variance Request
0 Development Permit
D Development Exaction Appeal
D FEMA CLOMA/CLOMR/LOMA/LOMR
0 Grading Plan
[8] Other -Please specify below
Fire Hydrant Flow Test Report
INFRASTRUCTURE AND ENGINEERING DOCUMENTS
All infrastructure documents must be submitted as a complete set.
The following are included in the complete set:
D Comprehensive Plan Amendment D Waterline Construction Documents
D TxDOT Driveway Permit D Sewerline Construction Documents
D TxDOT Utility Permit D Street Construction Documents
D Drainage Letter or Report D Easement Application
D Fire Flow Analysis D Other -Please specify
Special Instructions:
10/10 Ir Print Form
Addendum to
Drainage Report
for
Equinox Subdivision
Phase 1
College Station, Texas
August 2014
Developer:
DWS Development
P.O. Box 4508
Bryan, Texas 77805
Prepared By:
TBPE Firm No. 12327
P.O. Box 11995
College Station, TX 77842
2730 Longmire Drive, Suite A
College Station, Texas 77845
(979) 764-3900
> ..
> '
ENGINEER
Equinox Subdivision, Phase 1
Drainage Report -Addendum 1
Schultz Engineering, LLC
P.O. Box 11995
College Station, Texas 77842
Phone/Fax : (979) 764-3900
OWNER/DEVELOPER
DWS Development
P.O . Box 4508
Bryan, Texas 77805
Addendum changes
• The values in Table 2 & 3 were changed
• Exhibit C was revised to include an evaluation point of "XlO". Drainage area 323 is now split
into 323A and 323B .
• Appendix Bl was revised to include an evaluation point ("Xl O") at the intersection of Kate Lane
and Summerway Drive.
• The slope of Flume 1 was changed and the analysis was updated to reflect this change (appendix
B3).
• The cross section and slope of Flume 2 was changed and the analysis was updated to reflect this
change (appendix B3).
• The slope and flowlines of pipes 100, 101 & 200 were updated to reflect the changes to
construction plans (appendix B4).
• Page 20 of Appendix D was updated to include information about culvert 300.
Addendum additions
• Exhibit D -showing the drainage area contributing to the mid-block cross drainage valley gutter.
• Exhibit E -Showing the drainage areas contributing to the cross lot drainage swales.
• Appendix E -analyzing the mid-block cross drainage valley gutter.
• Appendix F -analyzing the cross-lot drainage and flow over sidewalk.
CERTIFICATION
f-t.2Ji1
SCHULTZ ENGINt:ERING~ LLC:.
I, Joseph P. Schultz, Licensed Professional Engineer No. 65889, State of
Texas, certify that this report for the drainage design for Equinox
Subdivision, Phase 1, was prepared by me in accordance with the
provisions of the Unified Stormwater Design Guidelines.
Page 1 of l
. ' . \
As shown in Table 2, the post-development peak outflows from the project site are less than the
allowable peak outflow for each design storm event. Additionally, Tables 3 presents the
maximum water surface and the amount of freeboard for the Detention Ponds. The peak flow out
of the detention ponds and the maximum water surface was determined by the Storage Routing
Analysis and the combining of the resulting hydro graphs with the hydrographs from the areas that
do not flow into the ponds .
TABLE 3-Su mma ry of Detention Po nds Maximum Wa ter S urfac e Levels
Detention Pond 1
Storm Event Peak F low out Water Surface Freeboard
of Pond, (cfs) E levation, ft. ft.
2-year 5.36 325.30 1.95
10-year 6 .1 5 325.58 1.67
25-year 6.46 325.69 1.5 6
50-year 6.78 325.82 1.43
100-year 6 .90 325.86 1.39
100-year plugged 8.29 326.08 1.17
Top of Berm= 327.25, Spillway Crest = 325.86, Spillway Width= 20'
Detention Pond 2
Storm Event Peak Flow out Water Surface Free board
of Pond, (cfs) Elevation, ft . ft.
2-year 3.29 308 .84 1.96
10-year 3.69 309.42 1.38
25-year 3.89 309.72 1.08
50-year 4.90 310.01 0.79
100-year 5.96 310.09 0.71
100-year plugged 9.55 310.26 0.54
Top of Berm= 310.80, Spillway Crest= 310.09, Spillway Width= 40'
The Detention Ponds have overflow spillways which discharges when the outlet structure
is clogged. The Detention Pond spillways will be grass lined at the flat crest. The ponds
have greater than 6" of free board even with the outlet structure clogged.
The grading plan for the Detention Ponds and the pond outlet structure and discharge
pipe details are shown on Exhibit E.1 & E.2.
revised: August 26, 2014
Page 7of8
. ' . \
TABLE 2-Pre-& Post-Development Runoff Comparison -Detention Analysis
Runoff Flow Direction l
Northeasterly Outfall to Buena Vida
Location Q2 QlO Q25 Q50 QlOO
cfs cfs cfs cfs cfs
Pre-Development
@ Outfall (Flow from Buena Vida Drainage Area 9.24 12.58 14.37 16 .26 16.98
Map Exhibits Sum of Areas OSI, OS2, & OS3)
Post-Development
Drainage Area 240 (outfalls directly to Buena 7.83 10 .69 12.20 13 .80 14.40
Vida Subdivision)
Decrease in Peak Flow 1.41 l.89 2.17 2.46 2.58
Runoff Flow Direction 2
Southeasterly Outfall to Rock Prairie Road West
Location Q2 QlO Q25 Q50 QlOO
cfs cfs cfs cfs cfs
Pre-Development
Drainage Area 101 (Outfalls to roadside ditch 8.19 11.58 13.30 15.12 15.78
along Rock Prairie Road West)
Post-Development 15.01 20.48 23.39 26.44 27.61 Drainage Area 210 (Outfalls to Detention Pond 1)
Detention Pond 1 Outfall 5.36 6.15 6.46 6 .78 7.03
Post-Development
Drainage Area 230 (Outfalls to roadside ditch 2 .20 3.01 3.43 3.88 4.05
along Rock Prairie Road West)
Combined Outfall 6 .63 7.92 8.59 9.25 9.47
Decrease in Peak Flow 1.56 3.66 4.71 5.87 6.31
Runoff Flow Direction 3
Northwesterly Outfall to Barracks II Section 101
Location Q2 QlO Q25 Q50 QlOO
cfs cfs cfs cfs cfs
Pre-Development
@ Outfall (Design flow for Barracks II 3.61 5.13 5.89 6.70 6.99
Subdivision Section 101 Storm Sewer Pipe)
Post-Development 22.53 30 .75 35.12 39.70 41.45 Drainage Area 220 (Outfalls to Detention Pond 2)
Detention Pond 2 Outfall 3.29 3.69 3.89 4.90 5.96
Decrease in Peak Flow 0.32 1.44 2.00 1.80 l.03
revised: August 26, 2014
Page6of8
' ' ..
Exhibit C -Drainage Area Map
Post-Development Pipe Design
revised: August 26, 2014
Exhibit D -Drainage Area Map
Mid-Block Cross Drainage Valley Gutter
August 26, 2014
Exhibit E -Drainage Area Map
Cross Lot Drainage Swale
August 26, 2014
Appendix Bl -Depth of Flow in Gutter Analysis
revised: August 26, 2014
APPENDIXB1
Equinox Subdivision Phase 1
Depth of Flow in Gutter
(Refer to Exhibit C for Gutter Locations)
Guttorllnlet A
LC>Qtion Aru• (•cru)
5100 322 0.170
-5101 323 1.260
5200 325 0 .250
5201 324 0.710
X1 326 0 .510
X2 327 0.050
X3 328 0.530
X4 321 0 .170
XS 341 0.100
XS 342 0 .830
X7 311 A 0 .920
X8 3116 0 .700
X10 323A 1.200
Transverse CCrownl slope !M!l
34 street = 0.0300
38 street = 0 .0300
c Slope le
(ft/fl) (min)
0.75 0 .0198 10.000
0 .75 0.0198 10.000
0.75 0 .0200 10.000
0 .75 0 .0200 10.000
0 .75 0.0290 10.000
0 .75 0 .0290 10.000
0 .75 0 .0198 10.000
0 .75 0 .0198 10.000
0.75 0 .0304 10.000
0 .75 0.0304 10.000
0 .75 0.0103 10.000
0 .75 0 .0106 10.000
-
0 .75 0 .0127 10.000
Strajqht Crown Flow !Solve<! to find as;tual !leP!h offlow in gutter. yl:
Q = 0 .56 " (z/n) • S vz " y"' Q y = {QI (0.56 • (z/n) • S ";}"'
n =Roughness Coefficient= 0 .016
S = StreeUGutter Slope (Mt}
y = Depth of flow at inlet (ft}
z = Reciprocal of crown slope: 34' street= 33
10-yNr storm
1,. o,. Q 1.+ bypau Y1o..c...,.
(inlhr) (ct.) (ct.) (ft) (in)
6 .327 1.10 0 .160 1.92
6 .327 8 .16 0 .339 4.07
6 .327 1.62 0.185 2 .21
--1--·
6 .327 4 .60 0.273 3.28
6 .327 3.30 -0.225 2.70
6 .327 0.32 0 .094 1 .13
6 .327 3.43 6 .39 0 .309 3.71
6 .327 1.10 1.36 0 .173 2 .08
6 .327 0.65 0.121 1.45
6 .327 5 .37 -0.268 3.21
6 .327 5.96 0.341 4 .09
6 .327 4 .53 0.306 3.67
6 .327 1.n -0.362 4 .34
5tandanl and Loydown Cur1> -10-yr stonn max design depth -4 .5"
v
(fps)
2 .58
4 .26
2 .85
3.70
3.92
--
2.19 ·-
2 .15
2.20
2 .65
4 .50
3.06
2 .91
··-3 .56
Equinox Subdivision Phase 1 Depth of Flow in Gutter (Refer to Exhibit C for Gutter Locations) GutUlrllnlet A Loe11tion At-.1 (acres) 5100 322 0.170 5101 323 1.260 5200 325 0.250 5201 324 0.710 Xl 326 0.510 X2 327 0.050 X3 328 0.530 X4 321 0.170 XS 341 0.100 X6 342 0.830 X7 311A 0.920 X8 3118 0.700 ----· X10 323A 1.200 Transverse !Crown! slooo !ftll!l 34 street = 0.0300 38 street = 0.0300 c sto,.. le: (ft/It) (min) 0.75 0.0198 10.000 0.75 0.0198 10.000 0.75 0.0200 10.000 0.75 0.0200 10.000 0.75 0.0290 10.000 0.75 0.0290 10.000 0.75 0.0198 10.000 0.75 0.0198 10.000 0.75 0.0304 10.000 0.75 0.0304 10.000 0.75 0.0103 10.000 0.75 0.0106 10.000 0.75 0.0127 10.000 Stnlight Crown Flow !Solved to find actual d!pth of flow in gutter. yl: Q "0.56 • (z/n) • 5111" y111 ~ y" (QI (0.56 • (z/n) • S"'}},.. n = Roughness Coefficient = S = StreeVGutter Slope (ft/fl) y = Depth of flow at inlet (ft} z = Reciprocal of crown slope: 0.016 34' street= 33 ~ .. Q, .. (inlhr) (cfs) 11.639 1.48 11.639 11.00 11.639 2.18 11.639 6.20 11.639 4.45 11.639 0.44 11.639 4.63 11.639 1.48 11.639 0.87 11.639 7.25 11.639 8.03 11.639 6.11 11.639 10.48 APPENDIX 81 100-yaar storm 100-year storm Q, ... bypau Ytoo AJl-•ble v Top of Gutter Gutter ROW Flffboanl (cfs} (ft} (in} Depth (fps} Curb FL Runoff, Elev. Elev. ft. 0.179 2.15 9_5• 2.78 324.35 323.85 324.03 324.64 0.61 0.379 4.55 9.5" 4.59 324.35 323.85 324.23 324.64 0.41 1--· I-· 0.206 2.48 5.67" 3.07 326.43 326.12 326.32 326.59 0.27 -0.305 3.66 5.67" 3.99 326.43 326.12 326.42 326.59 0.17 -------0.252 3.02 5.67" 4.22 324.54 324.23 324.48 324.70 0.22 -0.105 1.26 5.67" 2.36 324.54 324.23 324.33 324.70 0.37 9.36 0.357 4.28 5.67" 2.18 32.z.13 321.82 322.17 322.29 0.12 .. 1.94 0.198 2.38 5.67" 2.27 322.13 321.82 322.02 322.29 0.27 0.135 1.62 5.67" 2.86 323.43 323.12 323.25 323.59 0.34 0.299 3.59 5.67" 4.85 323.43 323.12 323.42 323.59 0.17 0.381 4.57 5.67" 3.32 327.09 326.78 327.16 327.25 0.09 -0.342 4.10 5.67" 3.13 327.10 326.79 327.13 327.26 0.13 0.405 4.86 5.67" 3.64 325.36 325.05 325.45 325.52 0.07
Appendix B3 -Concrete Flume Design Analysis
revised: August 26, 2014
Equinox Subdivision Phase 1
Concrete Flume -Design Analysis
(Refer to Exhibit C for Flume Locations)
cone.-A
Channel c
Location AINI (ocru1
Fl 311 1.620 0 .7 5
F2 312 0240 0.75
le
(mlnl
10.000
10.000
APPENDIXB3
Concrete Channel information
Oopfl1 BoaomWkith Slope .Unnlr19'• 1,.
(Ill (Ill (111111 n (In/hr)
0.500 6 .000 75 .0% 0.018 6 .327
0.500 4.000 1.0% 0.018 6 .327
10-yaar storm 100-year storm
Q,. Flow Depth v FrMboordto .... Q,,. Flow Depth v Freeboard to
Top of Top of
(cfsl (Ill (fp•I
Concrete (lnlhrl (cfsl (Ill (fp•I Concf'9ta Curb
Channel (Ill (Ill
10.49 o . .so 3.81 0.62 11 .639 14 .14 0.740 5 .76 0.34
1.55 0.340 3.04 0.41 11.639 2.10 0.420 3 .33 0.33
Channel Report
Hyd raflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc.
Concrete Flume 1 -10 Year Storm
User-defined
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
= 325.52
= 0.75 = 0.018
Known Q
= 10.49
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (fUs)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
Monday, Aug 25 2014
. = 0.46
= 10.49
= 2.75
= 3.81
= 6.90 = 0.46 = 6.00 = 0.69
(Sta, El, n)-(Sta, El, n) ...
( 0 .00 , 326 .59)-(4 .00 , 326.02, 0.045)-(4.50, 326 .02, 0.018)-(4.51, 325 .52 , 0.018)-(10.49, 325 .52, 0 .018)-(10.50, 326.02 , 0 .018)-(11 .00, 326.02, 0 .018)
-(15.00, 326 .59 , 0 .042)
Elev (ft) Section Depth (ft)
327 .00 1.48
--
-
'\.. /
"-/
~
326 .50 0.98
" /
I\. / ·--·--, /,,
326.00 '\ ~ "7' _/ ·-
0.48 -=--
---· '---M--·
-·-
--
325 .50 -0.02
--
---·-· -
-
325 .00 -0.52
-2 0 2 4 6 8 10 12 14 16 18
Sta (ft)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk , Inc. Monday, Aug 25 2014
Concrete Flume 1 -100 Year Storm
User-defined
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
(Sta, El, n)-(Sta, El, n) ...
= 325.52
= 0.75
= 0.027
Known Q
= 14.14
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
= 0.74
= 14.14
= 5.08
= 2.79
= 11.36
= 0.60
= 10.34
= 0.86
( 0.00, 326 .59)-(4.00, 326.02 , 0 .045)-(4 .50, 326 .02, 0 .018)-(4.51 , 325 .52 , 0 .018)-(10.49, 325 .52 , 0.018)-(10.50 , 326 .02 , 0 .018)-(11 .00, 326 .02 , 0 .0 18)
-(1 5.00 , 326 .59, 0 .042)
Elev (ft) Section Depth (ft)
327 .00 -....----.----.----.----.----.----,,.-----,----,------~ 1.48
326.50 I\.. / -+---+-~"--t----t----t----+----+---+---~+-:7~--+----+-0.98
~~-i.-~"-~-~-l-~-~___:~~~~~~.l--~/-+~-~~----< ~ v /
0.48
!---+-----+--'-------1----=--·----l-----~--'--·--1----1 " /
326 .00 -+---+---+---"-1-Fl---+---+---+-1_/===================~4-
>----'-·--1-----1--1-------·---1----·-·~--J----1----+------1
325 .50 -t---+---+---+~=~==~==~~-~--~--___j---~ -0 .02
1----+-----i...--...-, .. ---1------+----+------i----·--''----->------+-----l
325 .00 ----'------"----'----'----'----'----'----'----'----'L---L..... -0.52
-2 0 2 4 6 8 10 12 14 16 18
Sta (ft)
Channel Report
Hydraflow Express Exte nsion for Autodesk® AutoCAD® Civil 30® by Autodesk , Inc.
Concrete Flume 2 -10 Year Storm
Rectangular
Bottom Width (ft}
Total Depth (ft}
Invert Elev (ft}
Slope(%}
N-Value
Calculations
Compute by:
Known Q ( cfs}
Elev (ft}
= 1.50 = 0 .75
= 325.50
= 1.00
= 0 .018
Known Q
= 1.55
Section
Highlighted
Depth (ft}
Q (cfs}
Area (sqft}
Velocity (ft/s}
Wetted Perim (ft}
Grit Depth, Ye (ft}
Top Width (ft}
EGL (ft}
Monday, Aug 25 2014
= 0.34
= 1.550 = 0.51 = 3.04
= 2.18
= 0.33
= 1 .50 = 0.48
Depth (ft}
327.00 --.------.-------,---------,.-------~-----..-1.50
326 .50 -+------+-------+-------+------+------~ 1.00
326.00 --+------+------1-------1------+------t-0 .50
v
325 .50 -+------t-------+-------+------+------t-0.00
325 .00 ~-----~-----~------'--------'-------L---0.50
0 .5 1 1.5 2 2.5
Reach (ft}
Channel Report
Hydraflow Ex press Exte nsion for Autodesk® Au toCA D® Civi l 30® by Auto desk , Inc. Monday, Aug 25 20 14
Concrete Flume 2 -100 Year Storm
Rectangular
Bottom Width (ft)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by :
Known Q ( cfs)
Elev (ft)
= 1.50
= 0.75
= 325.50
= 1 .00
= 0.018
Known Q
= 2.10
Section
Highlighted
Depth (ft)
Q (cfs)
Area {sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
= 0.42
= 2 .100
= 0 .63
= 3 .33
= 2 .34
= 0.40
= 1.50
= 0 .59
Depth (ft)
327 .00 --.-------.,.-------,-------.-------.-------.,...--1 .50
326 .50 -+------+------+-------+------+-------+--1 .00
326 .oo --+------+------;------,=v =-----+------+-------1-o .5o
325.50 --+-----_...,------+-------+-------4-------+---0 .00
i---------i--·------+--·----t--------+-------1
325 .00 __._ _____ __._ _____ ___.._ _____ .......__ _____ _.____ _____ ....__ -0 .50
0 .5 1.5 2 2 .5
Reach (ft)
---------------------~
. '
Appendix B4 -Storm Sewer Pipe Design Analysis
revised: August 26, 2014
APPENDIX B4
Equinox Subdivision Phase 1
Storm Sewer Pipe Design Analysis (10 yr Storm)
Pipe
Pipe Pipe Pipe
Size Length Slope No. (Inches) (feet) (%1
Nonn•I Depth Surcharged
Q10 V10 Depth HG10 V10
(cfs) (fps) (feet) Slope (fps)
Downstream
Top
Structure Elev.
100 18 38.0 1.00 1.08 4 .24 0.33 0 .01% 0.61 5101 324.35
101 18 146.1 1.80 729 8 .52 0 .80 0.48% 4 .13 OUT100 -----
200 18 41 .9 0 .80 1.42 4 .41 0 .40 0.02% 0 .80 5201 326.43
201 18 12 1.4 0 .80 5.67 5.87 0 .89 0 .29% 3 .21 5202 325.20
-io2 18 96.0 2 .25 --5 .67 8.72 0 .64 029% 3.21 OUT200 ---
Notes
1. Friction losses and minor losses for 18° diameter pipe are computed as for a 15.6° diameter pipe which represents a 25% reduction in pipe flow area.
2 . Friction losses and minor losses for 24• diameter pipe are computed as for a 20.8° diameter pipe which represents a 25% reduction in pipe now area.
APPENDIX B4
Equinox Subdivision Phase 1
Storm Sewer Pipe Design Analysis (100 yr Storm)
Pipe
Pipe Pipe Pipe
S ize Length Slope No. (inches) (feet) (%)
Nonn11 Depth Surcharged
Q100 V100 Depth HG100 V100
(cfs) (fps) (feet) Slope (fps)
Downstream
Top
Structure Elev.
100 18 38.02 1.00 1.37 4.53 0.37 0.02% 0.78 5101 324.35
101 18 146.06 1.80 8.78 8.83 0 .91 0.70% 4 .97 OUT100 -
200 18 41 .90 0 .80 1.74 4 .72 0 .44 0 .03% 0 .99 5201 326.43
201 18 121 .35 0.80 7.28 6 .11 1.17 0.48% 4.12 5202 325.20
202 18 96.00 225
I--
7 .18 9.27 0 .74 0 .47% 4 .07 OuT200 -
Notes
1. Friction losses and minor losses for is· diameter pipe are computed as for a 15.6" diameter pipe which represents a 25% reduction in pipe flow area.
2 . Friction losses and minor losses for 24" diameter pipe are computed as for a 20.8" diameter pipe which represents a 25% reduction in pipe now area .
Upstreom
Pipe Top Pipe
FL Structure Elev. FL
319.59 5100 324.35 319 .97
~-
316.86 5101 324.35 319.49
322.58 5200 326.43 322.918
321 .51 5201 326.43 322 .482
--319.25 5202 325.20 321 .411
Upstream
Pipe Top Pipe
FL Structure Elev. FL
319.59 5100 324.35 319.97
'--316.86 5101 324.35 319.49
322.58 5200 326.43 322.918
321 .51 5201 326.43 322 .482
319.25 5202 325.20 321 .411
HG10
Elev.
·-320.29
320.30
323.32
323.38
322.40
HG100
Elev.
320.41
.. 320.34
323.36
----._32_~
322.64
HG10
Depth
Below
Gutter
(feet)
3.56
2 .61
2.55
2 .30
HG100
Depth
Below
ROW
(feet)
4.27
---4.34
!-------
3.40
0.29
----2 .89
. '
...
Appendix D -Technical Design Summary
revised: August 26, 2014
' ..
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 - Drai nage Co n ce~t and Design Parame ters I Co nti n ue d (Page 4 .11)
0,,_~ ,. :~~ ;!~ :.~§to rmtater Mana gement co nE:e pt l~"n'ti~u·e d >~: •l ~!:;~;l#~ :~..-'!:; • ·i ,l..P· ' :'f " ' .. ..;:~. ~ --.:;--~ ; -~ ...t--:,·,:t,·.~. ,::;,,~-.. ' ~1;.~ . •<J_; ;,.· : aii'"':'·~~~ -Clfl,!,i v .~
Wi t hin O r Serving Subject P roperty (Ph ase , o r Si te) (co ntin ued)
Named Re g ulato O£ Watercourses {&Tri buta rie s}: Are culverts proposed on these
facil ities? _:f_ No __ Yes, then prov ide full re port documenting ass umptions,
criteria , analysis , computer programs, an d study findings that supp ort proposed
design(s). Is report provided? __ Yes --No If "no", explain:
-Arterial or Major Coll ecto r Streets: Wi ll culverts serve these types of roadways? -Q)
Q) __ No _:L_ Yes How many instances? I For each identify the ..c:
(/)
Q) location and provide the information below. -(/) co Instance 1: Proposed culvert crossing at Towers Parkway where it meets Rock Prairie Q) .....
>-~
v'I ~ Instance 2:
Instance 3: c:
0 :;::::; Yes or No for the 100-year design flow: 1 2 3 0 co z E
I ~ Headwater WSE 1 foot below lowest curb top? YES
Spread of headwater within ROW or easement? YES
E C'· co Is velocity limited per conditi o ns (Table C-11 )? YES (/) (/) g>-o Explain any "no" answer(s): ·-c: ~ co
0 c: ..... 0 u:;::::;
~~ ~Q
"O Q) co .0 M in o r Collector or Local Stre ets : W ill cul v erts se rv e these types of streets? 0 ·-.......... u u No Yes How many instances? fo r each identify the ·-(/) -Q) -- --.g "O location and provide the information below:
~~ Instance 1: co .&!'
"O >. Instance 2: Q) c: (/) co
::J .... Instance 3 : (/) 0
t (/)
Q) Q)
For each instance e nte r value, or "yes" / "n o " for: 2: u 1 2 3 ::J c: u 2:! Design yr. headwater WSE 1 ft. below curb top? Q) (/) ..... c: ~ ·-100-yr. max . depth at street c ro wn 2 feet or less? ~
0 Product of velocity (fps) & depth at crown (ft}=? E .....
.2 Is velocity limited per conditio ns (Table C-11 )? ........
Limit of down stream analysis (feet)?
Explain any "no" answers:
ST ORMW ATER DESIG N GUIDELINES
Effective February 2007
Pa ge 20 of 26 AP PEN DIX. D: TEC H. DESIGN SUMMARY
As Revised August 2012
Appendix E -Mid Block Cross Drainage Valley Gutter
Design Analysis
August 26, 2014
APPENDIXE
Equinox Subdivision Phase 1
Mid-Block Cross Drainage Valley Gutter -Design Analysis
(Refer to Exhibit D for Locations)
Concrete Channel Information 1 ()..year stonn 100-year storm
Concn.W A le 0.plh Bottom Width Slope llllannlng's 1,. Q,. Flow Depth v .... Q,., FlowO.plh v
Channel c
Location Ar.a# (ac:< .. ) (min) (II) (ft) (ft/ft) n (In/hr) (cfs) (ft) (fps) (In/hr) (els) (ft) (fps)
X9 410 1.000 0 .75 10.000 0 .150 50.000 1.5% O.Q18 6.327 6.48 0.160 1.56 11 .639 8 .73 0 .170 1.89
Channel Report
Hydraflow Express Extension for Autodesk® AutoC AD® Civil 30® by Autodesk , Inc . Monday, Aug 25 2014
Mid-Block Cross Drainage Valley Gutter -10 Yr Storm
Triangular
Side Slopes (z: 1)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q (cfs)
Elev (ft)
= 160.00, 160.00
= 0.31
= 326.92
= 1.50
= 0.018
Known Q
= 6.48
Section
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
= 0.16 = 6.480 = 4.10 = 1.58
= 51.20
= 0.16 = 51 .20 = 0 .20
328 .00 --..---.-----.----.-----.---...----.-----.--~-~--~-~--~
~---1------+------·---+----t--··--+·---+----·-t----+--1---·----
Depth (ft)
1.08
327 .50 --+---+-----+---+----1----1----+---+---+-----+---+----i---I--0 .58
1----===:--=---F==-.:----·-··-·---+----~1-'T-. -·
~ .....__ -=i::-~ --327.00 -+--t----t---t----t__;;;:-....~.±---........----'l-~--:::1;........,"---t---t---+----+--+-0 .08
1----+-----+---+---r -----~---11~--1---~---1---1
1----1-----+---l----··-+---1---+---
326 .50 --+--+----+---+----t---t----+----+---t-----+---+----t---t---0.42
1----1---1-----·-·>---·-l---1----+---1----+-·-+----·----
326 .00 --1---...l..-..---'---...__ _ __._ _ _....__ _ _,__ _ ___,_ __ _,__ _ _...... __ ...__ _ __._ __ ~ -0.92
0 10 20 30 40 50 60 70 80 90 100 110 120
Reach (ft)
Channel Report
Hyd rafl ow Express Extension for Aut odesk® AutoCAD® Civil 30® by Autodesk. Inc. Monday, Aug 2 5 20 14
Mid-Block Cross Drainage Valley Gutter -100 Yr Storm
Triangular Highlighted
Side Slopes (z :1) = 160.00, 160.00 Depth (ft) = 0 .17
Total Depth (ft) = 0 .31 Q (cfs) = 8 .730
Area (sqft) = 4.62
Invert Elev (ft) = 326 .92 Velocity (ft/s) = 1.89
Slope(%) = 1.50 Wetted Perim (ft) = 54.40
N-Value = 0.018 Crit Depth , Ye (ft) = 0.18
Top Width (ft) = 54.40
Calculations EGL (ft) = 0 .23
Compute by: Known Q
K nown Q ( cfs) = 8.73
E lev (ft) Section Depth (ft)
328 .00 ---r--.-----,.---,-----.--.----,.----,.--.....---,.----.-----T---~ 1 .08
327 .50 --+--+---+---+-----+-----i---+----+--+---+--+-----1---1---0.58
-1~-
~,....__ -:: c:-._....i.--
327 .00 -t---+---+--+-----l--:::!11 .... _.,,.t--_1----+--___,.,..---4_....=---1------1----+----+---~ 0 .08
1----1----1----+-·----...,._,_--.1---.--.1---·--t----:it-----+----+--+----1
326 .50 --+--+---+--+----t---t----t----t---+---+--+----t---1----0.42
1----+--·---+---t-----1------·-•.,.H--~-e--.--I---'----'-----
, __ _,__ ___ &.------1----1----........i---~---4------l---·I------11------H ~---
326 .00 ___._ __ ......_ _ __.__ __ ..__ _ _.._ _ ___. __ _,__ _ __..L __ __.__ _ __._ __ ..__ _ _...i_ __ L._ -0 .92
0 10 20 30 40 50 60 70 80 90 100 1 10 120
Reach (ft)
Appendix F -Depth of Flow in Cross-Lot Drainge & Over Sidewalk
Design Analysis
August 26, 2014
APPENDIXF
Equinox Subdivision Phase 1
Depth of Flow in Cross-Lot Drainage & Over Sidewalk
(Refer to Exhibit E for Gutter Locations)
10-year stonn
Drainage Area Cross-Lot Drainage Over Sidewalk Flow
Gutterllnlet Slope Minimum Minumum A c tc 110 a 10 Y10-v Y10....ctuaj v
Location (ft/ft) Side Slope Depth Area# (acres) (min) (in/hr) (cfs) (ft) (in) (fps) (ft) (in) (fps)
X21 0 .0132 9 :1 0 .83 501 0 .190 0.75 10 .000 6 .327 1.23 0 .350 4.20 1.12 0 .080 0 .96 0 .97 --
X22 0 .01 27 10:1 0 .75 502 0 .030 0 .75 10.000 6 .327 0 .19 0 .190 2.28 0 .66 0 .02 0 0 .24 0 .52 -
..
X23 0 .0167 8 :1 1.50 503 0 .240 0 .75 10.000 6 .327 1.55 0 .380 4.56 1.34 0 .100 1.20 1.05 --
X24 0 .0136 5 :1 0 .70 504 0.480 0 .35 10.000 6 .327 1.45 0 .460 5 .52 1.37 0 .090 1.08 1.02 -
-r--------
X25 0 .0124 7 :1 1.00 505 0 .160 0 .75 10.000 6 .327 1.04 0 .360 4 .32 1.15 0 .060 0 .96 0 .92 -
X26 0 .0080 15 :1 1.33 506 0 .280 0 .75 10.000 6 .327 1.81 0 .360 4 .32 0 .93 0 .110 1.32 1.10 -
X27 0 .00 80 6 :1 1.25 507 0.450 0.75 10.000 6 .327 2 .91 0 .610 7 .32 1.30 0 .150 1.80 1.29
100-year stonn
Drainage Area Cross-Lot Drainage Over Sidewal k Flow
Gutterllnlet Slope Min imum Min um um A tc 1100 a 100 Y100 v Y100 v
Locatio n c
(fttft) Side Slope Depth Area# (acres) (min) (in/hr) (cfs) (ft) (in) (fps) (ft) (in) (fps)
X21 0 .0132 9 :1 0 .83 501 0 .190 0 .75 10.000 11 .639 1 .66 0 .390 4 .66 1 .21 0 .100 1.20 1.07 --
X22 0 .0127 10:1 0 .75 502 0 .030 0 .75 10.000 11 .639 0 .26 0.190 2.26 0 .72 0 .030 0 .36 0 .58
X23 0 .0167 6 :1 1.50 503 0 .240 0 .75 10.000 11 .639 2 .10 0 .42 0 5 .04 1.49 0 .120 1.44 1.16 -··
---·-·---·-
X24 0 .0136 5 :1 0 .70 504 0 .460 0 .35 10 .000 11 .6 39 1.96 0 .510 6 .12 1.51 0 .120 1.44 1.13
·--·-----f---------
X25
X26
X27
0 .0124 7 :1 1 .00 505 0.160 0 .7 5 10.000 11 .639 1.40 0.410 4 .92 1.19 0 .090 1.06
-
0 .0080 15:1 1.33 506 0.260 0.75 10.000 11.639 2 .44 0 .410 4 .92 0 .97 0 .130 1 .56 -
0 .0080 6:1 1.25 507 0 .450 0 .75 10 .000 11 .639 3 .93 0 .680 6 .16 1.42 0 .160 2 .16 -
Notes: The Cross Section of the cross lot drainage swales are not uniform . Each swale was evaluated at the most extreme cross-sections
The flow spreads out as it approaches the sidewalks so the sidewalk flow is evaluated as a 15' wide weir. The concentrated flow will begin to s pread out at the bu ~ding setback ti ne and a 15' spread is a
conservative evaluation.
1.01
1.22
-
1 .43
t
( J
· Drainage Report
for
Equinox Subdivision
Phase 1
College Station, Texas
July 2014
Dev elop er:
DWS Development
P.O. Box 4508
Bryan, Texas 77805
Prepared By:
Schultz Engineering, LLC
TBPE Firm No. 12327
P.O . Box 11995
College Station; TX 77842
2730 Longmire Drive, Suite A
College Station, Texas 77845
(979) 764-3900
ENGINEER
Equinox Subdivision, Phase 1
Drainage Report -Executive Summary
. Schultz Engineering, LLC
P.O. Box 11995
College Station, Texas 77842
Phone/Fax: (979) 764-3900
O\VNER/DEVELOPER
DWS Development
P.O. Box 4508
Bryan, Texas 77805
GENERAL DESCRIPTION AND LOCATION
Location:
Description:
•Area:
• Proposed Land Use:
• #of Lots:
• Existing Land Use:
• Land Description:
• Adjoining Land Use:
Primary Drainage Facility:
Flood Hazard Information:
FEMAFIRM:
Floodplain:
3270 Rock Prairie Road West approximately 700 feet west of the
intersection between Keefer Loop and Rock Prairie Road West.
9.269 acres
R-3 -Townhouse
51 lots
Residential & Horse Facility ,
Flat terrain with a slight high point near the middle of the property. The
site partially developed with horse facilities, pasture and riding areas.
The site is bounded on the south by Rock Prairie Road West, on the east
by Buena Vida Subdivision and Diamond T Storage Facility, on the west
by a 23 acre tract, and on the North by future phases of the Equinox
Subdivision and Barracks II Subdivision.
Bee Creek
# 48041C0305 F (April 2, 2014)
No portion of this Phase lies within the floodplain.
HYDROLOGIC CHARACTERISTICS
The site partially developed with a residence, horse facilities, pasture and riding areas. The
elevations range from 330 to 309. The site drains in three directions. One direction sloping
generally in a southeasterly direction where the runoff enters the roadside ditch along Rock
Prairie Road West, then into a tributary of Bee Creek. The second direction sloping generally in
a northeasterly direction where the runoff enters the Buena Vida development. The flow from the
site into the Buena Vida development is sheet flow, there is no existing drainage way or channel.
The third direction sloping generally in a northwesterly direction where the runoffenters the
Barracks II development. The flow from the site into the Barracks II development is sheet flow ,
there is no existing drainage way or channel.
Page 1 of8
GENERALSTORMWATERPLAN
The drainage plan for this development will involve the installation of curb and gutter, inlets,
junction boxes, storm sewer pipes, drainage channels, and drainage flumes which will convey the
runoff into two different detention ponds and with some areas discharging directly off site.
The runoff draining in the northeasterly direction will discharge directly into Kate Lane and the
Buena Vida Subdivision drainage system. The drainage report for the Buena Vida drainage
system accounted for 3.24 Acres of upstream undeveloped property. The post development area
contributing to the Buena Vida drainage system will decrease in size and the post development
peak runoff is less than or equal to the peak runoff accounted for in the drainage report for the
Buena Vida Subdivision. The Tables presented later in this report show the peak runoff
comparisons.
The majority of runoff draining in the southeasterly direction will be captured by Detention Pond
1 and will discharge into the roadside ditch along Rock Prairie Road West through a proposed
storm sewer pipe. A small portion of the runoff draining in the southeasterly direction will
bypass the detention pond and discharge directly to the Rock Prairie Road West roadside ditch.
The combined outfall is less than or equal to the predevelopment peak runoff draining in the
southeasterly direction.
The runoff draining in the northwesterly direction will be captured by temporary Detention Pond
2 and will discharge into an existing storm sewer pipe stubbed out from the Barracks II
Subdivision Section 101 until phase 2 is developed and the final Detention Pond 2 is constructed.
The temporary Detention Pond 2 decreases the peak runoff to less than or equal to the design
flows for the existing storm sewer pipe found in the drainage report for the Barracks II
Subdivision Section 101. The final Detention Pond 2 will utilize the outfall for the temporary
detention pond and add an additional outfall to the Barracks II Subdivision Phase 202 storm
sewer system. A subsequent drainage report will be submitted with the development of phase 2
for the final Detention Pond 2.
COORDINATION & STORMWATER PERMITTING
The project will require that a Notice ofllitent be submitted to the Texas Commission for
Environmental Quality. No other permits are anticipated for this project.
DRAINAGE DESIGN -STORM SEWER
General Information: Stormwater runoff from Phase 1 of the subdivision will be collected by
curb & gutters along the street and conveyed to storm inlets, storm pipes,
drainage channels and drainage flumes. The runoff will discharge in
three directions as described above. The runoff will ultimately discharge
into a tributary of Bee Creek. The location of the drainage areas for
evaluation of the gutter depth check, inlet sizing, storm sewer pipe
sizing, drainage channel and flume evaluation are shown on Exhibit C.
Also shown are the location of the inlets, junction boxes, storm sewer
pipes, drainage channels and concrete flumes. A summary of the
drainage areas and design flow values is provided in Appendix A.
Page 2 of8
Stree t D esign:
Tc M ethodology:
Tc Minimum
Design Storm Event:
Pipe Ma te rials:
Manning 's n Value :
Runoff Coefficients :
Design Constraints:
D esign Software:
Design Results
Due to the flat terrain for the portion of the site adjacent to Rock Prairie
Road, there is not enough elevation change to have curb inlets at the low
point in Sophies Lane. A valley gutter for mid-block drainage is
proposed in this location instead of curb inlets with storm sewer pipes.
The valley gutter discharges into a concrete channel, which conveys the
runoff to Detention Pond 1.
Standard cross-section (3% cross-slope, 38' B-B & 34 ' B-B residential)
Lay down curb & gutter on residential streets
Asphalt pavement
Standard recessed curb inlets (5', 10' and 15' in length)
TR55
10 minutes
10-year -residential street & storm sewer
Corrugated HDPE w/smooth interior, RCP , Profile Gasket in
accordance with ASTM C443 , ASTM C76 , Class ill
0 .013 or 0.012 for HDPE w/smooth interior
0 .75 for townhouse developed lots
Max. water depth in curb= 4.0 in. or 0 .33 ft .
Min. flow velocity= 2.5 fps
Max. flow velocity = 15 fps
100-yr storm runoff maintained within the ROW ( 4 inches above curb)
25% Reduction in cross-sectional area of pipes less than 24" in diameter
Excel spreadsheets, Autodesk Civil 3D Storm Sewer Analysis and
Hydraflow
This software was used to compute pipe capacity, flow rate and velocity
through each pipe, and determine hydraulic grade line elevations at each
inlet or junction box. All of this information is shown in the summary
tables in Appendices A, B 1, B2, & B3.
The College Station requirement for a 25% reduction in cross-sectional
area of pipes less than 24" diameter is achieved by using internal pipe
diameters that are less than the standard diameter. The 24" diameter pipe
areas were reduced by 25 % and a 20.6" diameter pipe used in the
analysis and the 18' diameter pipe areas were reduced by 25% and a
15 .6" diameter pipe was in the analysis.
The data presented in the Appendices indicates the gutter depth, inlet
sizing, pipe sizes, drainage channel sizing, and concrete flume sizing are
in accordance with the requirements of the design guidelines .
Page 3 of8
DETENTION ANALYSIS & DESIGN .
General: The stormwater runoff from this subdivision discharges into 3 different
outfalls as shown on Exhibit A. Two of the outfalls discharge from two
detention ponds for this site. Refer to Exhibit B for their locations.
Detention Ponds 1 & 2 will be constructed with Equinox Subdivision
Phase 1 and the runoff from this development will discharge in
accordance with the requirements of the design guidelines.
DETENTION PONDS (RATIONAL EQUATION ANALYSIS):
Tc Methodology:
Tc Methodology:
Tc Minimum
Design Storm Events:
Pond Discharge
Pipe Materials:
Manning 's n Value:
Runoff Coefficients:
Design Constraints:
Rational Equation:
Design Software:
Design Analysis:
TR55
TR55
10 minutes
2, 10, 25, 50 and 100-year storms-detention analysis
Corrugated HDPE w/smooth interior
0.013
0.35 -undeveloped/greenspace property, 0.45 -existing developed site
conditions, 0.75 -townhome developed area
Post Development flow less than or equal to Pre-Development flow
6" freeboard for 100 year storm with outlet clogged
The rational equation is utilized to determine peak storm water runoff
rates for Detention Pond 3 design.
Q=CIA
Q =Flow (cfs)
A= Area (acres)
C = Runoff Coefficient
I= Rainfall Intensity (in/hr)
Excel spreadsheets, Hydraflow Hydrographs Extension
The software was used to compute the pond storage and discharge data
and the pre and post development flow and the routing of the flow
through the detention ponds.
The Pre-development Drainage area, DA 101, is shown on Exhibit A.
The post-development drainage areas, DA 210 -240, are shown on Exhibit B. All of the
runoff does not flow into Detention Ponds as some of the runoff drains off site. The
design data and descriptions of the detention pond outlet structures, discharge pipes and
overflow spillways are found in Appendix C.
Page 4 of8
The peak flow out of the detention ponds were determined by a Storage Routing Analysis
based on the Continuity Equation as follows : (Il +I2)+((2sl/dt)-01)=((2s2/dt)=02). The
time interval, dt, used was 1 minute. The calculations and results of the Storage Routing
Analysis were used to generate hydrograph peak flows and graphs for the pre and post
development conditions. A summary of the peak flows from the site are shown in Table
1.
The hydrographs for the drainage area that does not flow into the detention ponds was
combined with the detention pond outflows to determine the total post development peak
flows. Triangular hydrographs were created for each area assuming the peak runoff value
occurs at the time of concentration and then goes to a runoff value of zero at three times
the time of concentration.
TABLE 1-Pre-& Post-Development Drainage Area Information
Area# Area c Tc
Acres Min.
Pre 101 4 .69 0.45 25
Pre (From Barracks II Section 101 Area to 2.44 0.40 27
drainage report for storm sewer Barracks
pipe design)
Post 210 3.54 0.67 10
Post 220 6.14 0.52 10
Post 230 0.58 0.60 10
Post 240 1.65 0.75 10
Page 5 of8
TABLE 2-Pre-& P ost-D evelopment Runoff Comparison -Detention Analysis
Runoff Flow Direction 1
Northeasterly Outfall to Buena Vida
Location Q2 QlO Q25 Q50 QlOO
~ cfs cfs cfs cfs cfs
~ Pre-Development ~ @ Outfall (Flow from Buena Vida Drainage Area 9.24 12.58 14 .37 16.26 16.98 . Map Exhibits Sum of Areas OS 1, OS2 , & OS3) o~' Post-Development c. ~1
f~'~ Drainage Area 240 (outfalls directly to Buena 7.83 10 .69 12.20 13 .80 14.40
Vida Subdivision)
Decrease in Peak Flow 1.41 1.89 2 .17 2.46 2 .58 ,.
Runoff Flow Direction 2
Southeasterly Outfall to Rock Prairie Road West
Location Q2 QIO Q25 Q50 QlOO
cfs cfs cfs cfs cfs
Pre-Development
Drainage Area 101 (Outfalls to roadside ditch 8.19 11.58 13 .30 15.12 15 .78
along Rock Prairie Road West)
Post-Development 15 .01 20.48 23.39 26.44 27 .61 Drainage Area 210 (Outfalls to Detention Pond 1)
Detention Pond 1 Outfall 5.36 6.15 6.46 6.78 6 .90
Post-Development
Drainage Area 230 (Outfalls to roadside ditch 2 .20 3 .01 3.43 3 .88 4.05
along Rock Prairie Road West)
Combined Outfall 6 .63 7.92 8.59 9 .2 5 9.47
Decrease in Peak Flow 1.56 3.66 4.71 5 .87 6.31
Runoff Flow D irection 3
Northwesterly Outfall to Barracks II Section 101
Location Q2 QlO Q25 Q50 QlOO
cfs cfs cfs cfs cfs
Pre-Development
@ Outfall (Design flow for Barracks II 3 .61 5.13 5.89 6.70 6 .99
Subdivision Section 101 Storm Sewer Pipe)
Post-Development 22.53 30 .75 35.12 39 .70 41.45 Drainage Area 220 (Outfalls to Detention Pond 2)
Detention Pond 2 Outfall 3.29 3.69 3 .89 4 .90 5.96
Decrease in Peak Flow 0 .32 1.44 2.00 1.80 1.03
Page 6 of8
As shown in Table 2, the post-development peak outflows from the project site are less than the
a llowable peak outflow for each design storm event. Additionally, Tables 3 presents the
maximum water surface and the amount of freeboard for the Detention Ponds . The peak flow out
of the detention ponds and the maximum water surface was determined by the Storage Routing
Analysis and the combining of the resulting hydro graphs with the hydro graphs from the areas that
do not flow into the ponds .
TABLE 3-Summary of Detention Ponds Maximum Water Surface Levels
Detention Pond 1
Storm Event Peak Flow out Water Surface Freeboard
of Pond, ( cfs) Elevation, ft. ft.
2-year 5.36 325.30 1.70
10-year 6.15 325 .58 1.42
25-year 6.46 325 .69 1.31
50..:.year 6.78 325 .82 1.18
100-year 6 .90 325 .86 1.14
100-year plugged 8 .29 326.08 0 .92
Top of Berm= 327.25, Spillway Crest= 325 .86, Spillway Width= 20'
Detention Pond 2
Storm Event Peak Flow out Water Surface Freeboard
of Pond, ( cfs) Elevation, ft. ft .
2-year 3 .29 308.84 1.96
10-year 3.69 309.42 1.38
25-year 3 .89 309.72 1.08
50-year 4 .90 310 .01 0.79
100-year 5.96 310 .09 0.71
100-year plugged 9 .55 310.26 0.54
Top of Berm= 310.80, Spillway Crest= 310.09, Spillway Width= 40 '
The Detention Ponds have overflow spillways which discharges when the outlet structure
is clogged. The Detention Pond spillways will be grass lined at the flat crest. The ponds
hav e greater than 6" of freeboard ev en with the outlet structure clogged.
The grading plan for the Detention Ponds and the pond outlet structure and discharge
pipe details are shown on Exhibit E.1 & E.2.
Page 7 of8
APPLICABLE EXHIBITS & APPENDICIES
CONCLUSION
Exhibit A -Drainage Area Map -Pre-Development
Exhibit B -Drainage Area Map -Post-Dev elopment Pond Design
Exhibit C -Drainage Area Map -Post-Development Pipe Design
Exhibit D.1 & D.2 -Buena Vida Drainage Report Exhibits
Exhibit E .1 & E.2 -Detention Pond 1 & 2 Design
Appendix A -Drainage Area Summary
Appendix B 1 -Depth of Flow in Gutter Summary
Appendix B2 -Inlet Design Analysis
Appendix B3 -Flume Design Analysis
Appendix B4 -Storm Sewer Design Analy sis
Appendix BS -Culvert Design Summary
Appendix B6 -Channel Design Summary
Appendix C -Detention Pond 1 & 2 Design
Appendix D -Technical Design Summary
The storm sewer drainage and detention facilities described in this report are designed in
accordance with the standards in the BCS Drainage Design Guidelines with the exception
of the use of a mid-block cross drainage valley gutter on Sophi es Lane. The peak runoff
flowrate from the site will be less than the pre-development flowrates for all storm
ev ents.
CERTIFICATION
I, Joseph P . Schultz, Licensed Professional Engineer No . 65889, State of Texas, certify
that this report for the drainage design for Equinox Subdivision, Phase 1 , was prepared
by me in accordance with the provisions of the Unified Stormwater Design Guidelines.
.F--123~7
S.CHUL.ti ~,~JNEER(NG1 i,i~;
Iosep
Page 8 of8
Exhibit A -Drainage Area Map
Pre-Development
Appendix A -Drainage Area Summary
APPENDIX A
Equinox Subdivision Phase 1
Drainage Ar ea Summarv
Area#
310
311
311A
311B
312
320
321
322
323
324
325
326
327
328
329
330
340
341
342
The Rational Method:
Q=CIA
Q =Flow (cfs)
A= Area (acres)
C = Runoff Coeff.
I = Rainfall Intensity (in/hr)
Brazos County:
Area, A c tc
(acres) (min)
1.63 0.750 10.0
1.62 0 .750 10.0
0 .92 0 .750 10.0
0.70 0 .750 10.0
0.24 0.750 10.0
1.39 0.350 10.0 .
0.17 0.750 10.0
0 .17 0.750 10.0
1.26 0.750 10.0
0.71 0.750 10.0
0.25 0.750 10.0
0.51 0.750 10.0
0.05 0.750 10.0
0.53 0.750 10.0
0.92 0.350 10.0
1.98 0.500 15.0
0 .68 0.750 10.0
0.10 0.750 10.0
0.83 0.750 10.0
I = b I (tc+d)0
tc =Time of concentration (min)
I 0 year storm
b= 80
d= 8.5
e = 0.763
10 year storm 100 year storm
110
(in/hr)
8.635
8.635
8.635
8 .635
8.635
8.635
8.635
8.635
8 .635
8.635
8.635
8.635
8.635
8.635
8.635
7.194
8.635
8.635
8.635
010
(cfs)
10.56
10.49
5.96
4.53
1.55
4.20
1.10
1.10
8.16
4 .60
1.62
3 .30
0 .32
3.43
2.78
7.12
4.40
0 .65
5.37
tc; = L/(V*60)
L = Length (ft
1100
(in/hr)
11.639
11.639
11.639
11 .639
11 .639
11.639
11 .639
11.639
11.639
11.639
11.639
11.639
11.639
11.639
11 .639
9.732
11.639
11 .639
11 .639
V =Velocity (ft/sec)
I 00 year storm
b= 96
d= 8.0
e = 0.730
0100
(cfs)
14.23
14.14
8.03
6.11
2.10
5.66
1.48
1.48
11.00
6.20
2.18
4 .45
0.44
4.63
3.75
9 .63
5.94
0.87
7.25
Appendix Bl -Depth of Flow in Gutter Summary
Equinox Subdivision Phase 1
Depth of Flow in Gutter
(Re fe r to Exhi bi t C for Gutter Locations)
Gutter/Inlet A
Location Area# (acres}
$100 322 0.170
$101 323 1.260
$200 325 0.250
$201 324 0.710
X1 326 0.510
X2 327 0.050
X3 328 0.530
X4 32 1 0.170
XS 341 0.100
X6 342 0.830
X7 311A 0.920
X8 3118 0.700
c Slope
(ft/ft)
0.75 0.0198
0.75 0.0198
0.75 0.0200
0.75 0.0200
0.75 0.0290
0.75 0.0290
0.75 0.0198
0.75 0.0198
0.75 0.0304
0.75 0.0304
0.75 0.0103
0.75 0.0106
APPENDIX 81
10-year storm
le 1,. o,. a,o +bypass Y1 0 .. ctual
(min) (in/hr) (els) (els) (ft) (in)
10.000 6.327 1.10 -0.160 1.92
10.000 6.327 8.16 0.339 4.07
10.000 6.327 1.62 -. 0.1 85 2.21
10.000 6.327 4.60 0.273 3.28
10.000 6.327 3.30 -0.225 2.70
10.000 6.32 7 0.32 0.094 1.13
10.000 6.327 3.43 6.39 0.309 3.71
10.000 6.327 1.10 1.36 0.173 2.08
10.000 6.327 0.65 0.121 1.45
10.000 6.327 5.37 0.268 3.21
10.000 6 .327 5.96 0.341 4.09
10.000 6.327 4.53 -0.306 3.67
Transverse (Crown) slope (ft/ft) Standard and Laydown Curb -10-yr storm max design depth - 4.5"
34 street = 0 .0300
36 street = 0 .0300
Straight Crown Flow (Solved to find actual depth of flow In gutter. yl :
Q = 0.56 • (z/n) • S 112 • y113 c> y ={QI [0.56 • (z/n) • S 112]}"'
n = Roughness Coefficient = 0 .018
S = StreeUGutter Slope (ft/ft)
y = Depth of flow at inlet (ft}
z = Reciprocal of crown slope: 34' street= 33
v
(fps)
2.58
4.26
2.85
3.70
3.92
2.19
2.15
2 .20
2.65
4.50
3.08
2.91 .
Equinox Subdivision Phase 1
Depth of Flow in Gutter
(Refer to Exhibit C for Gutter Locations)
Gutter/Inlet A
Location Area# (acres)
S100 322 0 .170
S101 323 1.260
5200 325 0.250
5201 324 0 .710
X1 326 0 .510
X2 327 0 .050
X3 328 0.530
X4 321 0.170
XS 341 0 .100
xe 342 0.830
X7 311A 0 .920
X8 3116 0.700
Transverse fCrownl slope f!Vftl
34 street = 0.0300
38 street = 0.0300
c Slope le
(fl/ft) (min)
0 .75 0 .0198 10.000
0.75 0.0198 10.000
0.75 0.0200 10.000
0 .75 0.0200 10.000
0.75 0.0290 10.000
0.75 0.0290 10.000
0.75 0.0198 10.000
0.75 0.0198 10.000
0.75 0.0304 10.000
0.75 0.0304 10.000
0.75 0.0103 10.000
0.75 0.0106 10.000
Straight Crown Flow !Solved to find actual depth of now In gutter. y):
Q = o.56 • (zlnJ • s112 • y'" Q v =co / [0.56 • (z/n) • sv'n"'
n =Roughness Coefficient= 0.018
S = StreeVGutter Slope (!VII}
y = Depth of flow at inlet (ft}
z = Reciprocal of crown slope: 34' street= 33
1, .. Q,,.
(1n1hr> (els)
11 .639 1.48
11 .639 .11 .00
11 .639 2.18
11 .639 6 .20
11 .639 4.45
11 .639 0.44
11 .639 4.63
11.639 1.48
11 .639 0.87
11 .639 7.25
11 .639 8.03
11 .639 6 .11
APPENDIX 81
100-yaar storm 100-year storm
Q1oo + bypass Y100 Allowable v Top of Gutter Gutter ROW Freeboard
(els) (ft) (in) Depth (fps) Curb FL Runoff, Elev. Elev. fl.
0.179 2 .15 9 .5" 2 .78 324 .35 323 .85 324.03 324 .64 0.61
0 .379 4 .55 9.5" 4 .59 324.35 323.85 324 .23 324.64 0.41
0 .206 2.48 5 .67" 3 .07 326.43 326.12 326.32 326.59 0 .27
0.305 3.66 5.67" 3.99 326.43 326.12 326.42 326.59 0 .17
0.252 3 .02 5.67" 4.22 324.54 324.23 324.48 324 .70 0.22
0 .105 1.26 5.67" 2 .36 324.54 324.23 324.33 324.70 0 .37
9 .36 0.357 4.28 5 .67" 2.18 322 .13 321 .82 322.17 322 .29 0 .12
1.94 0.198 2.38 5.67" 2.27 322 .13 321 .82 322 .02 322 .29 0.27
0.135 1.62 5.67" 2 .86 323.43 323.12 323 .25 323.59 0.34
0.299 3.59 5.67" 4 .85 323.43 323.12 323.42 323.59 0.17
-0.381 4.57 5.67" 3.32 327.09 326 .78 327.16 327.25 0 .09
0 .342 4 .10 5.67" 3.13 327.10 326.79 327.13 327 .26 0.13
Appendix B2 -Inlet Design Analysis
APPENDIX B2
Equinox Subdivision Phase 1
Storm 1 Sewer Inlets on Grade -Design Analysis
Inlet Length Street
No. ft. Slope
S100 5 1.98%
S101 10 1.98%
S200 5 2.00%
S201 10 2.00%
Assume 10% clogging for design
Se= Sx + (a/w)* Eo
Eo= Qw/Q = 1 - [ 1 -W /T]2"67
L=Kc*Q0 .47 *S 0 ·3*(1 /(n *Se) )°"6
Q10
cfs
1.10
8.16
1.62
4 .60
L10,ft.
Design
9.06
23.22
10 .89
17.79
W =Width of Depressed Gutter (ft)= 2
Sx=Cross flow of Road Surface 0.03
T=Total Spread of water in gutter (ft) 12.5
a=Gutter depression depth (ft)= 0.33
n=Manning's Roughness Coefficient= 0.018
Kc= 0 .6
Qw=Flow in width, W
E=Efficiency of inlet or percentage of intercepti.on
S=Longitudinal Slope
Li=Curb opening length
Se = Sx + (a/w)* Eo
Eo= Qw/Q = 1 -[ 1 - W /T]2·57
0.091412
0.372194
Bypass
cf s
0.26
2.96
0 .54
1.04
0100 L 100, ft. Bypass
cfs Design cfs
1.48 10.42 0.46
11.00 26.72 4 .73
2.18 12.53 0.87
6.20 20.47 1.85
Appendix B3 -Concrete Channel Design Analysis
Equinox Subdivision Phase 1
Concrete Channel -Design Analysis
(Refer to Exh ibit C for Flume Locations)
Concrete A
Channel c
Location Area# (acres)
F1 31 1 1.620 0.75 -
F2 31 2 0.240 0.75
le
(min)
10.000
10.000
APPENDIXB3
Concrete Channel Information
Dept h Bottom Width Slope Mann ing 's 1,.
(fl) (fl) (ft/fl) n (In/hr)
0.500 6 .000 2 .0% 0.016 6.327
0.500 4.000 3.1% O.D16 6.327
10-year storm 100-yea r storm
a,. Flow Depth v Freeboard to 1,,. a,,. Flow Depth v Freeboa rd to
Top of Top of
Concrete Concrete Curb (els) (fl) (fps) Channel (fl) (In/hr) (els) (fl) (fps) (fl)
10.49 0.340 5.15 0.74 11 .639 14.14 0.41 0 5.76 0.67
1.55 0.120 3.23 0.36 11.639 2.10 0 .150 3.50 0.35 -
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® _Civil 3D® by Autodesk , inc.
Concrete Flume 1 -10 Year Storm
User-defined
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
(Sta, El, n)-(Sta, El, n) ...
= 325.52
= 2.00
= 0.018
Known Q
= 10.49
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Grit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
Tuesday, Jul 15 2014
= 0.34
. = 10.49
= 2.04
= 5.15
= 6.66
= 0.46
= 5.99
= 0.75
( 0 .00 , 326 .59)-(4.00, 326.02, 0 .045)-(4.50, 326.02 , 0 .018)-(4 .51 , 325 .52 , 0.018)-(10.49, 325.52, 0.018 )-(1 0 .5 0, 326 .02, 0 .018)-(11.00, 326.02 , 0 .018)
-(15.00, 326 .59, 0.042)
Elev (ft) Section Depth (f1
327.00 1.48
f'-/
"'"
~v 326 .50 0.98
'\ /
["\. /
"'"
)/
326.00 '\ -_/
0.48
"---v---
·~·~HH ···-----· ~--------·-·-HHoH----··•--H "-~---
325.50 -0 .02
325.00 -0.52
-2 0 2 4 6 8 10 12 14 16 18
Sta (ft)
.. Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc. Tuesday, Jul 15 2014
Concrete Flume 1 -100 Year Storm
User-defined
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
(Sta, El, n)-(Sta, El, n) ...
= 325.52
= 2.00
= 0 .018
Known Q
= 14.14
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
= 0.41
= 14.14
= 2.46
= 5 .76
= 6.80
= 0.60
= 6.00
= 0.93
( 0.00 , 326.5 9)-(4 .00 , 326 .02, 0.045)-(4.50, 326.02 , 0 .018)-(4.51, 325 .52, 0 .018)-(10.49, 325 .52, 0.018)-(10.5 0 , 326.02 , 0.018)-(11.00, 326 .02 , 0.018)
-(15.00, 32 6.59 , 0 .042)
Elev (ft) Section Depth (ft
327 .00 1.48
I\.. /
' /
~
326.50 0 .98
" 7
I' /
' /7
'\ .... _/
v 326.00 0.48
-
---~------.. ··--·-----·· ·----·------·---·-··---··----·
325 .50 -0.02
325 .00 -0.52
-2 0 2 4 6 8 10 12 14 16 18
Sta (ft)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk , Inc.
Concrete Flume 2 -100 Year Storm
Rectangular
Bottom Width (ft)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft)
= 4.00
= 0.50
= 325.50
= 3.10
= 0.018
Known Q
= 2.10
Section
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Grit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
Tuesday, Ju l 15 201 4
= 0.15
= 2.100
= 0.60
= 3.50
= 4.30
= 0.21
= 4.00
= 0.34
Depth (f1
327.00 -----,------,-----,----,-----...----r----.------.----~--,..------,-1.50
326 .50 -+----+---+----+-----+----+---+---+---+------1f------+-1.00
326 .00 -+---+---+---+----t----+----+---+---+----1-------l-0.50
1---+----------------t-----t--------------1----1---
--1------'-t------------· --------· -----·-· ------------· ------· --------'-----~-----
325.50 --+----+----+-----+----+----+----+----+----+----.__----11--0 .00
325.00 ~--~-----'-----'-----'-----'-----'------'------'-----'-------'--0.50
0 .5 1 1.5 2 2 .5 3 3 .5 4 4 .5 5
Reach (ft)
Channel Report
Hydrafl ow Express Extension for Autodesk® Au toCAD® Civil 30® by Autodesk , Inc .
Concrete Flume 2 -10 Year Storm
Rectangular
Bottom Width (ft)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft)
= 4.00
= 0.50
= 325.50
= 3.10
= 0.018
Known Q
= 1.55
Section
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
Tuesday, Ju l 15 2014
= 0.12
= 1.550
= 0.48
= 3.23
= 4.24
= 0.17
= 4.00
= 0.28
Depth (fl
327 .00 ----r'----,----..------.----.-----r-----.-----.-----,-------,...------,-1.50
326.50 --+----+-----+-----+----+----+----+---+----+----1--------l-1.00
326.00 --+----t----+----+----+----+----i----+----1-------Ji-----+-0 .50
1------4---·----------·-----------1-----1----+-----t
1---l~=~===+===t====-=-=~-=-·I=-·=-· =::1====t===--=--1-.. f--· ·-·-----
325.50 ----r----t----T-----t----t----t----+----+----+-----lf-----j-0 .00
325 .00 ~--~--~--~--~--~--~---'-----'------'-----------'--0.50
0 .5 1 1 .5 2 2.5 3 3.5 4 4 .5 5
Reach (ft)
Appendix B4 -Storm Sewer Pipe Design Analysis
APPENDIX 84
Equinox Subdivision Phase 1
Storm Sewer Pipe Design Analysis (1 O yr Storm)
HG10
Depth
Pipe P ipe Pipe Pipe
No. Size Length Slope
(Inches) (feet) (%)
Nonnal Depth Surcharged
Q10 V10 Depth HG10 V10
(els) (fps) (feet) Slope (fps)
Downstream
Top Pipe
Structure Elev. FL
Upstrea m
Top Pipe HG10
Structure Elev. FL Elev.
Below
Gutter
(feet)
100 18 38 .0 1.00 1.08 4.24 0.33 0.01% 0.61 S101 324 .35 320.59 S100 324 .35 320 .97 320 .29 3.56
101 18 146.1 ..-2.25 7.29 8.52 0.80 0.48% 4.13 OUT100 317 .21 S101 324 .35 320.49 320 .30 3.55
200 18 42 .0 0.80 1.42 4.41 0.40 0.02% 0.80 S201 326 .43 322 .58 S200 326.43 322 .918 322 .40 3.53
201 18 121.4 0.80 5.67 5.87 0.89 0.29% 3.21 S202 325 .20 321 .51 S201 326.43 322.482 323 .38 2.55
202 18 24 .0 2.25 5.67 8.72 0.64 0.29% 3.21 OUT200 -320 .87 S202 325 .20 321.411 323.32 1.38
Notes
1. Friction losses and minor losses for 16" diameter pipe are computed as for a 15.6" diameter pipe which represents a 25% reduction in pipe flow area.
2 . Friction losses and minor losses for 24" diameter pipe are computed as for a 20.6" diameter pipe which represents a 25% reduction in pipe flow area.
APPENDIXB4
Equinox Subdivision Phase 1
Storm Sewer Pipe Design Analysis (100 yr Storm)
HG100
Depth
Pipe P ipe Pipe Pipe
No. S ize Length Slope
(inches) (feet) (%)
Nonnal Depth Surcharged
Q100 V100 Depth HG100 V100
(els) (fps) (feet) Slope (fps)
Downstream
Top Pipe
Structure Elev. FL
Upstream
Top Pipe HG100
Structure Elev. FL Elev.
Below
ROW
(feet)
100 18 36 .02 1.00 1.37 4.53 0.37 0.02 % 0.78 S101 324.35 320 .59 S100 324.35 320.97 320 .41 4.27
101 16 146.06 2.25 8.78 8.83 0.91 0.70% 4.97 OUT100 317 .21 S101 324.35 320.4 9 320 .34 4.34
200 16 42 .02 0.60 1.74 4 .72 0.44 0.03% 0.99 S201 326.43 322 .58 S200 326.43 322 .918 322.64 4 .12
201 18 121 .35 0.80 7.28 6.11 1.17 0.48% 4.12 S202 325.20 321 .51 S201 326.43 322.462 326.47 0.29
202 18 24.02 2.25 7.18 9.27 0.74 0.47% 4.07 OUT200 -320.87 S202 325.20 321.4 11 323.36 2.17
Notes
1. Friction losses and minor losses for 16" diameter pipe are computed as for a 15.6" diameter pipe which represents a 25% reduction in pipe flow area.
2 . Friction losses and minor losses for 24' diameter pipe are computed as for a 20.6" diameter pipe which represents a 25% reduction in pipe flow area.
Appendix BS -Culvert Design Summary
Equinox Subdivision Phase 1
Culvert Design Summary
(Refer to Exhibit C for Culvert Locations)
Pipe Pipe Size Length
No.
(in) (ft)
300 15"x24" Box 60.0
Appendix BS
Slope Contributing
Drainage Areas
(%)
0.5 330
Q10 V10 D10 Q100 V100 D100
(cfs) (fps) (ft) (cfs). (fps) (ft)
7 .12 4.85 0.73 9.63 5.36 0 .90
Culvert Report
Hyd rafl ow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autod esk, Inc.
CULVERT 300 -10 YEAR STORM
Invert Elev Dn (ft)
Pipe Length (ft)
Slope(%)
Invert Elev Up (ft)
Rise (in)
Shape
Span (in)"
No. Barrels
n-Value
Culvert Type
Culvert Entrance
Coeff. K,M ,c ,Y ,k
Embankment
Top Elevation (ft)
Top Width (ft)
Crest Width (ft)
= 324.09
= 60.00
= 0.50 .
= 324 .39
= 15.0
= Box
= 24.0
= 1
= 0 .012
= Rectagular Concrete
= Slope tapered,
more favorable edges
= 0.5 , 0.667, 0 .0378, 0.71 , 0.2
= 326.32 -
= 48.00
= 48.00
Calculations
Qmin (cfs)
Qmax (cfs)
Tailwater Elev (ft)
Highlighted
Qtotal ( cfs)
Qpipe (cfs)
Qovertop ( cfs)
Veloc On (ft/s)
Veloc Up (ft/s)
HGL Dn (ft)
HGL Up (ft)
Hw Elev (ft)
Hw/D (ft)
Flow Regime
Tu esday, J ul 15 2014
= 7.12
= 9.63
= (dc+D)/2
= 7.12
= 7 .12
= 0.00
= 3 .59
= 4 .85
= 325.08
= 325.12
~56 <
~
= Inlet Control
Elev (ft) CULVERT JOO -10 YEAR STORM Hw Depth (ft)
327.00 ~---.---.---..------r---.---.---..------r---.---.---.-------.----.--.----,--,---2.61
to 1s 20 2D 30 36 40 45 60 65 60 66 10 1s so
--Box Culvert --HGL --Embank
Re1c:h(ft)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk , Inc.
CULVERT 300 -100 YEAR STORM
Invert Elev On (ft)
Pipe Length (ft)
Slope(%)
Invert Elev Up (ft)
Rise (in)
Shape
Span (in)
No. Barrels
n-Value
Culvert Type
Culvert Entrance
Coeff. K,M,c,Y,k
Embankment
Top Elevation (ft)
Top Width (ft)
Crest Width (ft)
Elev(ft)
= 324.09
= 60.00
= 0.50
= 324.39
= 15.0
= Box
= 24.0
= 1
= 0.012
= Rectagular Concrete
= Slope tapered,
more favorable edges
= 0.5, 0.667, 0.0378, 0.71, 0.2
= 326.32
= 48.00
= 48.00
CULVERT 300 -10 YEAR STORM
Calculations
Qmin (cfs)
Qmax (cfs)
Tailwater Elev (ft)
Highlighted
Qtotal ( cfs)
Qpipe (cfs)
Qovertop (cfs)
Veloc On (ft/s)
Veloc Up (ft/s)
HGL On (ft)
HGL Up (ft)
Hw Elev (ft)
Hw/O (ft)
Flow Regime ·
Tuesday, Jul 15 2014 .
= 7.12
= 9.63
= (dc+0)/2
= 9.63
= 9.63
= 0 .00
= 4.49
= 5.36
= 325.16
= 325.29
= 325.84
= 1.16
= Inlet Control
ttw Depih (ft)
32:3.50 --+--+---+--t---+--+---+--t---+--+--+--1----+--l---l---lf----l----0.69
10 16 20 25 30 35 40 45 50 65 60 65 70 75 60
--Bex CUNOll --HGL --Embank
Reoch(ft)
. ·.:=:-.•.•.·,,-.
Appendix B6 -Channel Design Summary
Equinox Subdivision Phase 1
Channel Design Summary
(Re fe r to Exhibit C for Channel Locations)
Channel Channel Geometry
No.
ChlOO 4' Bottom -4H: 1 V
Ch200 4' Bottom -4H:lV
Slope
(%)
l.ll
1.4
App end ix B6
Contributing Contributing
Drainage Areas Pipes or Channels
320 ,321 ,328 Ch200 , PlOl
326,327,329 P202
010 V 10 D 10 0 100 V 100 0 100
(cfs) (fps) (ft) (cfs) (fps) (ft)
29 .85 3.42 1.06 40 .23 3 .71 1.22
12.22 2.91 0 .64 16.47 3.20 0 .74
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc.
Channel No 100 -10 yr Storm
Trapezoidal
Bottom Width (ft)
Side Slopes (z: 1)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft)
312.00
311 .50
311.00
310.50
310 .00
309.50
309.00
308.50
0
'\.
2
'\.
'\.
'\.
" I'\.
4
= 4.00
= 4.00, 4 .00
= 2.00
= 309 .02
= 1.11
= 0.035
Known Q
= 29.85
'\.
'\.
'\.
' I'\.
'\.
'\.
'\.
6
' I'\.
8
Section
'~ --
'\.
'\.
'\. .,
10 12
Reach (ft)
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft).
EGL (ft)
/
/
/
'"' /
/
/
/
I/
/
/
/
/
I/
14 16 18
/
/
. I/
/
20 ·
Tuesday, Jul 15 2014
= 1.06
= 29.85
= 8.73
= 3.42
= 12.74
= 0.90
= 12.48
= 1 .24
/
/
22 24
Depth (ft
2.98
2.48
1.98
1.48
0 .98
0.48
-0 .02
-0.52
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Au todesk, Inc.
Channel No 100 -100 yr Storm
Trapezoidal
Bottom Width (ft)
Side Slopes (z:1)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft)
312 .00
311.50
311 .00
310.50
310.00
309.50
309.00
308.50
0
'
2
' ' ' ...
'
= 4.00
= 4.00 , 4.00
= 2.00
= 309.02
= 1.11 .
= 0.035
Known Q
= 40.23
' ...
' ...
I\.
' ' ' ...
'
4 6 8
Section
~ ~
--
' ' ' '
10 12
Reach (ft)
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
/
'I'
/
/
I
/ ,
/
/
/
/
'I'
/
/
/
/
/
14 16 18 20
/
Tuesday, Jul 15 2014
= 1.22
= 40.23
= 10.83
= 3.71
= 14.06
= 1.05
= 13.76
= 1.43
/
/
22 24
Depth (ft
2.98
2.48
1.98
1.48
0.98
0.48
-0.02
-0.52
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 30® by Autodesk, Inc.
Channel No 200 -10 yr Storm
Trapezoidal
Bottom Width (ft)
Side Slopes (z:1)
Total Depth (ft}
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft)
318.00
" " " 317.50
317.00
316.50
316.00
315.50
315.00
0 2
'\
' "
= 4.00
= 4.00, 4.00
= 2.00
= 315.93
= 1.40
= 0.035
Known Q
= 12.22
" " " ' "' " " " ' "'
4 6 8
Section
"I: t7' --
" '\
" '
10 12
Reach (ft)
Highlighted
Depth (ft}
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft}
Crit Depth, Ye (ft)
Top Width (ft)
EGL (ft}
/
/
/ ,
7
/
7
,/
/
/
J ,
~
/
/
/
/ ,
14 16 18 20
Tuesday, Jul 15 2014
= 0.64
= 12.22
= 4.20
= 2.91
= 9.28
= 0.55
= 9.12
= 0.77
/
/
22 24
Depth (f1
2 .07
1.57
1.07
0.57
0.07
-0.43
-0.93
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc .
Channel No 200 -100 yr Storm
Trapezoidal
Bottom Width (ft)
Side Slopes (z: 1)
Total Depth (ft)
Invert Elev (ft)
Slope(%)
N-Value
Calculations
Compute by:
Known Q ( cfs)
Elev (ft )
318 .00
317 .50
317.00
316.50
316.00
315.50
315 .00
0
\.
2
\.
\.
\.
' \.
4
= 4.00
= 4.00 , 4.00
= 2 .00
= 315.93
= 1.40
= 0.035
Known Q
= 16.47
\.
\.
\.
' \.
\.
" \.
' \.
\.
\.
\.
'
6 8 10
Section
~ 17
--
12
Reach (ft)
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Grit Depth, Ye (ft)
Top Width (ft)
EGL (ft)
/
/
' /
/
/
/ ,
/
/ ,
/ ,
/
/
/
/
If
14 16 18 20
Tuesday, Jul 15 2014
= 0.74
= 16.47
= 5.15
= 3 .20
= 10.10
= 0.65
= 9.92
= 0.90
/
/
22 24
Depth (ft
2 .07
1.57
1.07
0.57
0.07
-0.43
-0.93
Appendix C -Detention Ponds 1 & 2
E quinox Subd iv isi on P hase 1 Detent ion
A ppendix C
P ro pose d Dra in age An a lys is
Drainage A r ea S u mmary -Detention Facilit ies
Area, A c le
Area #
(acres) (min)
101 4.69 0.45 25 .0
Area to Barracks 2.44 0.40 27.0 II Section 101
2 10 3.54 0.67 10 .0
220 6.14 0.58 10 .0
230 0.58 0.60 10.0
240 1.65 0.75 10.0
*Detention Pond Area 210 Routed Through Detention Pond 1 1 Outflow
Combined Outfall Detention Pond 1 Outfall Combined with
1 Area230
*Detention Pond Area 220 Routed Through Detention Pond 2
2 Outflow
T he R atio n al Meth od :
Q =CIA I= b I (tc;+d)•
2 yea r storm
12 Q,
(in/hr) (cfs)
3.88 8.19
3.70 3.61
6.33 15.01
6.33 22 .53
6.33 2.20
6.33 7.83
5.36
6.63
3.29
Q =Flow (cfs)
A= Area (acres)
C = Runoff Coeff.
tc =Time of concentration (min)
I= Rainfall Intensity (in/hr)
Brazos County:
2yearstorm
b= 65
d=8
e = 0.806
10 vear storm
b= 80
d= 8.5
e= 0.763
10 year storm
110 Q,o
(in/hr) (c fs)
5.49 11.58
5.25 5.13
8.63 20.48
8.63 30 .75
8.63 3.00
8.63 10 .69
6.15
7.92
3.69
25 year storm
b= 89
d= 8.5
e= 0.754
25 year storm
1,, Q,,
(in/hr) (cfs)
6.30 13 .30
6.03 5.89
9.86 23 .39
9.86 35 .12
9.86 3.43
9.86 12.20
6.46
8.59
3.89
50 vear storm
b= 98
d = 8.5
e = 0.745
50 year storm
lso
(in/hr)
7.1 6
6.86
11.15
11.15
11.15
1U5
Q50
(cfs)
15 .12
6.70
26.44
39.70
3.88
13 .80
6.78
9.25
4.90
t. = L/(V*60)
L = Length (ft
100 year storm
1100 Q100
(in/hr) (cfs)
7.48 15.78
7.16 6.99
11.64 27 .61
11.64 41.45
11.64 4 .05
11.64 14.40
6.90
9.47
5.96
V =Velocity (ft/sec)
100 year storm
b= 96
d= 8.0
e = 0.730
Tsheet = 0.007(L*n)0.8
(P 2) 0.5 *(S) 0.4
T,hee• = time of concentration for sheet flow (b.r)
L = length (ft)
n = MaruJ.i.ng's n
P 2 = 2-yr rainfall intensity (in/hr) for Brazos Co . =
S = slope (ft/ft)
4.5
Equinox Subdivision Phase 1 Detention
Time of Concentration
Appendix C
(TR-55 Method)
DA101
T= L/(60*V)
T = travel time through ditch. or gutter (min)
L = length of travel path (ft)
V = velocity (ft/sec)
Sheet Flow Shallow Concentrated Flow Culvert Flow Concentrated Flow 1--~~~~~~~~~~~~-1-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-1-~~~~~~~~~~~~TotalTc
Length Slope T ,,_ Length Slope Velocity I T '"'"""'" Length Slope Velocity T w,,,.,.,. Length Slope Velocity T '"'"'""' Drainage Area n
ft % min. ft % ft/sec min ft % ft/sec min ft % ft/sec min min
101 ·~. 25.0
Detention Pond 1
AppendixC
Detention Pond 1 Summary
Detention Pond 1
Design Storm Inflow Outflow W.S.
Elevation
(yr) (cfs) (cfs) (ft)
2 15.01 5.36 325.30
-----------------------------------------------------------------------------10 20.48 6.15 325.58
25 23.39 6.46 325.69
50 26.44 6.78 325.82
100 27.61 6.90 325.86
100 Plugged 27.61 8.29 326 .08
Top of Pond Berm= 327 .25', Top of Spillway 325 .86'
Elevation
(ft)
323.5
324 .0
324 .5
325.0
325.5
326 .0
326.5
Detention Pond 1
Appendix C
Detention Pond 1 Area-Capacity Data
Detention Pond 1
Depth Volume Cumulative
Volume
(ft) (ft3) (ft3)
0.0 0 0
0.5 28 28
1.0 458 486
1.5 3 ,067 3,553
2 .0 6,800 10,353
2 .5 10,133 20,486
3.0 15,892 36,378
90% Cumulative
Volume
(ft3)
0
26
442
3,230
9,412
18 ,624
33 ,071
Elevation
(ft)
323.5
324.0
324 .5
325.0
325 .5
326 .0
326 .5
Notes:
Detention Pond 1
Appendix C
Elevation -Discharge Data
Depth-Disc harge Data
15" Outfall
Pond Pipe
Depth . Flow
(ft) (cfs)
0.0 0.00
0.5 1.10
1.0 2.89
1.5 4 .30
2.0 5 .94
2.5 7 .22
3.0 8.31
zoidal 20' Trape
Wei r
Flow
(cfs )
0.00
0.00
0 .00
0 .00
0.00
0 .00
0 .00
Total Design
Flow
(cfs)
0.00
1.10
2.89
4.30
5.94
7.22
8 .31
1. The Outlet Structure is a 15" outfall pipe.
2. The overflow spillway is a trapezoidal weir at 325.86 ' and 20' wide.
Pond
Elevation Depth
(ft) (ft)
323.5 0 .0
324 .0 0.5
324 .5 1.0
325 .0 1.5
325.5 2.0
326 .0 2 .5
. 326.5 3.0
Notes:
Detention Pond 1
Plugged Condition
Depth-Disc harge Data
15" Outfall
Pipe
Flow
(cfs)
0.00
0.00
0.00
0 .00
0.00
0 .00
0 .00
zoidal 20' Trape
Wei . r
Flow
(cfs )
0.0 0
0 .0 0
0.0 0
0.0 0
0 .0 0
3.4 9
34.1 0
Total Design
Flow
(cfs)
0.00
0.00
0.00
0 .00
0.00
3.49
34.10
1. The Outlet Structure is a 15" outfall pipe.
2. The overflow spillway is a trapezoidal weir at 325.86 ' and 20 ' wide.
-
t=60s
Elevation
(ft)
323 .50
324.00
324.50
325.00
325.50
326.00
326 .50
Detention Pond 1
AppendixC
Storage Routing Analysis Parameters
Detention Pond 1
Depth Discharge Storage 2 sit
(ft) (0, cfs) (s, cf)
0.0 0.00 0 .0 0.0
0.5 1.10 25.6 0.9
1.0 2.89 442.0 14.7
1.5 4.30 3230.0 107 .7
2.0 5.94 9412.0 313.7
2.5 7 .22 18624.0 620.8
3.0 8.31 33071.0 1102.4 .
2 sit+ 0
0.00
1.95
17.62
111.97
319.67
628.02
1110.68
The Outlet Structure is a 15" pipe. The overflow spillway is a trapezoidal
weir at elev= 325 .86'
. ~/· ·-~ • Inflow; ·;:;, .l'r411·: ,·,~,. : ~zyr r. .,:Time'{ ·rilin) Q(cfs) ~-)!Ji~;j; ;~ Q}\1t .-:, 0.00 ,.,•!'.·..{;[i~'i~·'.) 1.50 }i;f-'.jt2)< ·~.•:•: 3.00 ~w.-,;;.·3.~ !ij)i.i\,o, 4.50 ... ·-.. 6.00 . •'.:' ~ .. ~.,,,. ·:"::;.::rn ,._. .. '.'< ~:: 7.50 ,' • 04 ')"\ 9.00 •' .. ,7;;,z,::;, 10.50 . ->c~6JL 12.00 . ·"'':~}fit,/':'•· 13.50 :.;::;;_: 10~:·;:;:,. .'.·15.01''· ~. ,, n1},'ii$-.• 14.25 lii;l.2.~i: j 13.50 ·, *lf3;tt,~1~' 12.75 /"., ';1i'~J..4;jj:l: ;~ 12.00 .I~ tk. f?;~J\F 11.25 ;,.,; '·f·)l6'f~'l'l' 10.50 " ;'ff1' '"'ifr 9.75 ·<1_8:: , .. -:-9.00 :•: ~ 12~~;;;: -8.25 tf ,'{'i{J:" •.· 7.50 "' . 2.Vt':'' -6.75 -;;I" :22.~·.ii'c'· 6.00 . ,:~<~'~:~23 ;~4~·\: 5.25 : ~UJ24.~W>1~f' 4.50 y·'.':; -~ 2!ift'\i'(l 3.75 '(.;b/J,,l26t);.f':~-~ 3.00 1~f!/~~{2]fi~j;~;,' .· •. 2.25 -~f-~28<'. ,' 1.50 •A~5~1'.:~ :2~r~.~t~;• '' 0.75 zw~.:«,~Q;;.,; .. 0.00 ... ,.,1)!~\j;,.,,.,. 0.00 · ,~;·3:zv,t' 0.00 .,r. ·: 3l ",,; 0.00 ~3~~ :~4~·-.:,.~,-"'· 0.00 ; ; ,/~ff/;t,''" 0.00 ',' ·;.,.;i(l~6t%" ·~< 0.00 .. .,,.,"' '""'""-i;to~: ·<;;> 0.00 j w Ji.:38'.~t;'{f 0.00 ,,H ·.~~S, ~· ·i< :°_r:;i;; 0.00 ,£.ij/!"~~4Q~~ ~s~?~ 0.00 .... ; 4ti: :'·'· '. 0.00 ,.~ •,-<42~ .,, 0.00 -""'Vf~: ·1~~?· 0.00 ~· •• ~t.,~~~~-0.00 .z~~~;'.t1$~tt~ 0.00 ~· "'j:4<i '§;t" 0.00 .::~;:'(AJ·~~~i<. 0.00 ·"'"'''\:46~~\\J:· 0.00 ~t;~--~:)'.~9:/).tx~~ 0.00 ;',;.:::'=...501,fJ\. 0.00 'i°";i/f!~J;~·~ 0.00 'f•.;j>:,52-'t"~ .-0.00 · z,'ii\53~-'''" , 0.00 ·\,.,,54 .... ~'i~,, 0.00 "":'.:. 55 <·,: 0.00 "<. ;;, 56'.<,,'. ':'. 0.00 ·~ ~t·:s1-~--: :~~ 0.00 , •• ;; ;/:;5 8;,, .;t;';\' 0.00 ··,-s"~'i59;\''"',.:. 0.00 Detention Pond 1 Inflow & Outflow Bydrographs Appendix C Qu'tflow <.·hi,flow 'ouffiow '"Inflow Oiitflow • ·Iii.tfow· ~>'2yr'· _-;t-lOyr :\ 5+1C>Y,r _ '25yf:.,,. :: f;t5yt ;1 ·~. ·;spyi/~ Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.79 2.05 1.12 2.34 1.15 2.64 1.41 4.10 1.60 4.68 1.73 5.29 1.97 6.14 2.42 7.02 2.66 7.93 2.70 8.19 2.96 9.36 3.01 10.58 2.98 10.24 3.11 11.69 3.17 13.22 3.11 12.29 3.24 14.03 3.21 15.86 3.22 14.34 3.37 16.37 3.70 18.51 3.19 16.38 3.95 18.71 4.31 21.15 3.65 18.43 4.40 21.05 4.59 23.80 4.13 • 20.48:'> .. 4.67 ,, 23;39?' 4.89 i~•26-.44 ·'' 4.42 19.46 4.93 22.22 5.18 25.12 4.59 18.43 5.15 21.05 5.43 23.80 4.74 17.41 5.35 19.88 5.65 22.47 4.87 16.38 5.52 18.71 5.84 21.15 4.98 15.36 5.67 17.54 5.99 19.83 5.07 14.34 5.80 16.37 6.09 18.51 5.15 13.31 5.91 15.20 6.17 17.19 5.22 12.29 5.98 14.03 6.25 15.86 5.27 11.26 6.04 12.86 6.31 14.54 5.31 10.24 6.08 11.69 6.36 13.22 5.34 9.22 6.11 10.53 6.40 11.90 5.36 8.19 6.14 9.36 6.43 10.58 /~'S.36.-7.17 6.15 8.19 6.45 9.25 5.35 6.14 ,;,,:6;15' -· 7.02 !·"6.4&H•: 7.93 5.33 5.12 6.15 5.85 6.46 6.61 5.30 4.10 6.14 4.68 6.45 5.29 5.26 3.07 6.11 3.51 6.43 3.97 5.21 2.05 6.08 2.34 6.40 2.64 5.15 1.02 6.04 1.17 6.36 1.32 5.07 0.00 5.99 0.00 6.31 0.00 4.99 0.00 5.93 0.00 6.26 0.00 4.91 0.00 5.85 0.00 6.20 0.00 4.83 0.00 5.77 0.00 6.15 0.00 4.75 0.00 5.69 0.00 6.09 0.00 4.66 0.00 5.60 0.00 6.04 0.00 4.58 0.00 5.52 0.00 5.98 0.00 4.50 0.00 5.44 0.00 5.92 0.00 4.42 0.00 5.36 0.00 5.84 0.00 4.34 0.00 5.28 0.00 5.76 0.00 4.20 0.00 5.20 0.00 5.68 0.00 4.02 0.00 5.11 0.00 5.60 0.00 3.84 0.00 5.03 0.00 5.51 0.00 3.66. 0.00 4.95 0.00 5.43 0.00 3.48 0.00 4.87 0.00 5.35 0.00 3.30 0.00 4.79 0.00 5.27 0.00 3.20 0.00 4.71 0.00 . 5.19 0.00 3.25 0.00 4.62 0.00 5.11 0.00 3.23 0.00 4.54 0.00 5.02 0.00 3.19 . 0.00 4.46 0.00 4.94 0.00 3.13 0.00 4.38 0.00 4.86 0.00 3.06 0.00 4.29 0.00 4.78 0.00 2.98 0.00 4.11 0.00 4.70 0.00 2.90 0.00 3.93 0.00 4.62 0.00 2.34 0.00 3.75 0.00 4.53 0.00 1.79 0.00 3.57 0.00 4.45 0.00 1.37 0.00 3.39 0.00 4.37 0.00 0.66 0.00 3.21 0.00 4.27 0.00 0.00 0.00 3.22 0.00 4.09 0.00 0.00 0.00 3.24 0.00 3.91 0.00 Outflow •• lfilloW.' Ou~QWc . ~ 50yr. " " 100Yf ~ ., lOOyr''· Q(cfs) Q(cfs) Q(cfs) 0.00 0.00 0.00 1.19 2.76 1.21 1.86 5.52 1.91 2.89 8.28 2.90 3.06 11.04 3.08 3.22 13.80 3.24 3.35 16.56 3.45 4.01 19.32 4.13 4.47 22.08 4.53 4.78 24.85 4.86 5.12 ·'f\21.61' 5.20 5.43 26.23 5.53 5.71 24.85 5.81 5.95 23.46 6.03 6.09 22.08 6.18 6.22 20.70 6.31 6.33 19.32 6.43 6.43 17.94 6.53 6.52 16.56 6.62 6.59 15.18 6.69 6.65 13.80 6.76 6.70 12.42 6.81 6.73 11.04 6.85 6.76 9.66 6.92 6.77 8.28 7.01 _,,.,_6.78'~ 6.90 '' 7jj3::{ 6.77 5.52 7.00 6.75 4.14 6.91 6.73 2.76 6.84 6.69 1.38 6.81 6.64 0.00 6.76 6.58 0.00 6.70 6.53 0.00 6.65 6.47 0.00 6.59 6.42 0.00 6.54 6.37 0.00 6.48 6.31 0.00 6.43 6.26 0.00 6.37 6.20 0.00 6.32 6.15 0.00 . 6.26 6.09 0.00 6.21 6.04 0.00 6.15 5.98 0.00 6.10 5.92 0.00 6.04 5.84 0.00 5.99 5.75 0.00 5.93 5.67 0.00 5.85 5.59 0.00 5.77 5.51 0.00 5.69 5.43 0.00 5.60 5.35 0.00 5.52 5.26 0.00 5.44 5.18 0.00 5.36 5.10 0.00 5.28 5.02 0.00 5.20 4.94 0.00 5.11 4.86 0.00 5.03 4.78 0.00 4.95 4.69 0.00 4.87 4.61 0.00 4.79
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Appendix C
0 10 20 30 40 so 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
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0 10 20 30 40 so 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
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Appendix C
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Appendix C
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Appendix C
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Appendix C
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Appendix C
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Time (min)
-Pre Development lOOyr
--Post Development lOOyr
Detention Pond 2
Appendix C
Detention Pond 2 Summary
Detention Pond 2
Design Storm Inflow Outflow W.S.
Elevation
(yr) (cfs) (cfs) (ft)
2 22 .53 3.29 308.84
10 . 30.75 3.69 309.42
-----------------------------------------------------------------------------25 35.12 3.89 309 .72
50 39.70 4.90 310.01
100 41.45 . 5.96 310.09
100 Plugged 41.45 9 .55 310.26
Top of Pond Berm= 310.80', Top of Spillway 310.09'
Detention Pond 2
Appendix C
Detention Facility Area-Capacity Data
Detention Pond 2
Elevation Depth Volume
(ft) (ft) (ft3)
306.04 0.0 0
307.0 1.0 1,331
308.0 2.0 7,043
309.0 3.0 11,310
310.0 4 .0 13,581
311.0 5 .0 16,589
Cumulative 90% Cumulative
Volume Volume
(ft3) (ft3)
0 0
1,331 1,210
8,374 7,613
19,685 17,895
33,265 30,241
49,854 45,322
Pond
Elevation Depth
(ft) (ft)
306.0 0.0
307.0 1.0
308 .0 2 .0
309.0 3.0
310 .0 4.0
311.0 5.0
Notes:
Detention Pond 2
Appendix C
Elevation -Discharge Data
Depth -Discharge Data
18" Outfall 24" x 24" 40' Trapezoidal
Pipe 18" x 4" Slot Grate Inlet Weir
Flow Flow Flow Flow
(cfs) (cfs) (cfs) (cfs)
0.00 0.00 0 .00 0 .00
1.07 1.07 0.00 0.00
2.64 2.61 0.00 0.00
3.43 3.41 0.00 0 .00
4.76 3 .91 0.84 0 .00
16.79 0.89 15 .90 0.00
Total Design
Flow
(cfs)
0.00
1.07
2 .64
3.43
4 .76
16.79
1. The Outlet Structure is a concrete box with a 18" outfall pipe and an 18" tall x 4" wide slot in the front of
the box.
2. The overflow spillway is a trapezoidal weir at 310 .09', with a width of 40'. The outlet structure will also
have a 24" x 24"'grate at 309.90' to be used as overflow if the slot is clogged.
Detention Pond 2
Plugged Condition
Depth -Discharge Data
18" Outfall 24" x 24" 40' Trapezoidal
Pond Pipe 18" x 4" Slot Grate Inlet Weir Total Design
Elevation Depth Flow Flow Flow Flow Flow
(ft) (ft) (cfs) (cfs) (cfs) (cfs) (cfs)
306.04 0 .0 0.00 0 .00 0 .00 0.00 0.00
307.0 1.0 0 .00 0.00 0.00 0.00 0 .00
308 .0 2.0 0 .00 0.00 0.00 0.00 0.00
309.0 3.0 0.00 0 .00 0.00 0 .00 0.00
310.0 4.0 0.00 0.00 0.00 0.00 0.00
311.0 5 .0 0.00 0 .00 0.00 115.63 115 .63
Notes:
1. The Outlet Structure is a concrete box with a 18" outfall pipe and an 18" tall x 4" wide slot in the front of
the box.
2 . The overflow spillway is a trapezoidal weir at 310.09', with a width of 40'. The outlet structure will also
have a 24" x 24" grate at 309.90' to be used as overflow if the slot is clogged.
t=60s
Elevation
(ft)
306.04
307.00
308 .00
309 .00
310 .00
311.00
Detention Pond 2
AppendixC
Storage Routing Analysis Parameters
Detention Pond 2
Depth Discharge Storage 2 sit
(ft) (0, cfs) (s, ct)
0.0 0 .00 0.0 0.0
1.0 1.07 1331.0 44.4
2.0 2 .64 8374 .3 279 .1
3.0 3.43 19684 .5 656.2
4.0 4.76 33265.l 1108.8
5.0 16.79 49854.2 1661.8
2 sit+ 0
0.00
45.44
281.78
659 .58
1113.60
1678.60
The Outlet Structure is a box structure with an 18" outfall pipe and an 18" x
4" slot in the front. The overflow spillway is a trapezoidal weir at elev=
310 .09' and a 24" grate inlet at elev= 309.90'
... · '' ,~'i:i...·,,.,_ ,Jnf19w .. .;':t',1~.' .'?·· :,, 29£~:;,/ Tiin:e(?min) Q(cfs) " ~o ;;-;-0.00 c:• i,.ll?\~ , . 2.25 i\;i)i2);'' ; .. 4.51 "".:t\· '3~·. 6.76 .At'.''.!\ 9.01 ... , ~:t.11; S> ~r l 11.26 ~f ii' f6'-;,,•?"'. 13.52 .···_.'4:;7. ··:· 15.77 ;; ' •;,f.Jf/ ,.' 18.02 '_,,, .... 0'>·•··' 20.28 -~~A-t 10~t". "'·! ~-22:s3~: '\;· ':·ll •·. 21.40 '1_2w 20.28 . ~::i.fl3~.'" 19.15 ~iri<t4~{ ·1· 18.02 •'' .·~~· l~' !•.d. 16.90 : '.~6:?i . 15.77 . ¢-1•::J7''?:, .. 14.64 /-~ ~t~·~~~: ~-13.52 .. ·.··• •1_9. to, 12.39 ·. 21F"".., 11.26 ' :'?~~)11 .. ~ 10.14 'C ·tt11~; ~2~~~i' 9.01 "· "'P•z.r · 7.89 T"· ,,24 :. -'-'-6.76 i;~2$;-t··" 5.63 .• ~ .. ::26, '-.: 4.51 "'':27" ··. ,. 3.38 ..,. ;;;..,'~it:2,s--t··:.t, ,, 2.25 .1~;;;4.·2~~;:; .. 1.13 "-!"',)'30.IV'.'., 0.00 ' '.#·i'3f ': ·: 0.00 .... ~3.2"""'' 0.00 "' .;; :•);3iI!,· ' -0.00 •;. ' ~-34/• ·~\ 0.00 -~~35•' 0.00 : ~'\36; '!, .T 0.00 ,.: I: ·7'3:7";,, iil 0.00 ,, ·;3gl'>· 0.00 '' :39, ..... 0.00 ~, -:::~o:~,;, 0.00 .. ""''i{l.'~ ·~, 0.00 ·~· '42i!,l' 0.00 .. :;43 .,_·. 0.00 ; t•,44'~~:;. 0.00 ;':'f.'45~···, · .. 0.00 '46····· ,,. 0.00 • "i• 4? 0.00 1-'A$~~,.., 0.00 .,,,~-.. t.~9'1::'.~ 0.00 · ·;;,so<-· 0.00 ··: r;.,51'' 0.00 c:;:.j52:,;~,. ·: 0.00 _:. _ ':s3,~;~. 0.00 .. •. 54 ;.~1 .. 0.00 "'• •. ? 5.5 ."r. 0.00 ~,&l . .'56 ;1"'!1'. 0.00 ~; 57 .. " .. 0.00 " .;-;., .S.8~ .,." · 0.00 ·: ... ·59\_·' 0.00 Detention Pond 2 Inflow & Outflow Hydrographs Appendix C ,'buttlbw, ,..Iriflow·,\ ,oiilttow, 'iinflpw.· Outflow fiiiflo:W· ""::tr2yr-?'•~ •;,..·I.OYr.~::; •, IOyrf.;, "; 25~~}. ·'\::25yr":'. "!°:' ~OYr. ,_., Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 3.07 0.02 3.51 0.02 3.97 0.10 6.15 0.16 7.02 0.20 7.94 0.35 9.22 0.57 10.54 0.70 11.91 0.84 12.30 1.12 14.05 1.17 15.88 1.17 15.37 1.32 17.56 1.41 19.85 1.35 18.45 1.59 21.07 1.73 23.82 1.58 21.52 1.93 24.58 2.10 27.79 1.86 24.60 2.24 28.09 2.40 31.76 2.15 27.67 2.50 31.61 2.63 35.73 2.38 i30:1s% 2.68 :r~3s:12\~' 2.79 G!39.10 , 2.57 29.21 2.82 33.36 2.94 37.71 2.67 27.67 2.94 31.61 3.08 35.73 2.76 26.14 3.05 29.85 3.20 33.74 2.84 24.60 3.15 28.09 3.31 31.76 2.91 23.06 3.25 26.34 3.41 29.77 2.97 21.52 3.32 24.58 3.49 27.79 3.03 19.99 3.40 22.83 3.55 25.80 3.08 18.45 3.46 21.07 3.62 23.82 3.13 16.91 3.51 19.32 3.67 21.83 3.16 15.37 3.54 17.56 3.72 19.85 3.20 13.84 3.58 15.80 3.76 17.86 3.22 12.30 3.62 14.05 3.79 15.88 3.25 10.76 3.64 12.29 3.82 13.89 3.27 9.22 3.66 10.54 3.85 11.91 3.28 7.69 3.67 8.78 3.86 9.92 3.29 6.15 3.68 7.02 3.88 7.94 j:;.3:29 ';. 4.61 "!'··3.69~'-5.27 J.'"Hs 5.95 3.29 3.07 3.69 3.51 3.88 3.97 3.28 1.54 3.69 1.76 3.88 1.98 3.27 0.00 3.68 0.00 3.87 0.00 3.26 0.00 3.66 0.00 3.86 0.00 3.24 0.00 3.65 0.00 3.85 0.00 3.23 0.00 3.64 0.00 3.84 0.00 3.21 0.00 3.63 0.00 3.82 0.00 3.20 0.00 3.62 0.00 3.81 0.00 3.18 0.00 3.61 0.00 3.80 0.00 3.17 0.00 3.60 0.00 3.79 0.00 3.15 0.00 3.58 0.00 3.78 0.00 3.14 0.00 3.57 0.00 3.77 0.00 3.13 0.00 3.56 0.00 3.75 0.00 3.12 0.00 3.55 0.00 3.74 0.00 3.10 0.00 3.54 0.00 3.73 0.00 3.09 0.00 3.52 0.00 3.72 0.00 3.07 0.00 3.51 0.00 3.70 0.00 3.06 0.00 3.50 0.00 3.69 0.00 3.04 0.00 3.49 0.00 3.68 0.00 3.03 0.00 3.48 0.00 3.67 0.00 3.01 0.00 3.47 0.00 3.66 0.00 3.00 0.00 3.46 0.00 3.65 0.00 2.99 0.00 3.44 0.00 3.63 0.00 2.97 0.00 3.43 0.00 3.62 0.00 2.96 0.00 3.42 0.00 3.61 0.00 2.95 0.00 3.41 0.00 3.60 0.00 2.93 0.00 3.39 0.00 3.59 0.00 2.92 0.00 3.38 0.00 3.57 0.00 2.90 0.00 3.36 0.00 3.56 0.00 2.89 0.00 3.35 0.00 3.55 0.00 2.87 0.00 3.33 0.00 3.54 0.00 2.86 0.00 3.32 0.00 3.53 0.00 ·outf1ow: 1nflow Qutfloj_. ~· -s·oyf~ir;· h.JOOYr'·' . "'lOO}tr,{1 Q(cfs) Q(cfs) Q(cfs) 0.00 0.00 0.00 0,03 4.14 0.03 0.24 8.29 0.26 0.84 12.43 0.89 1.23 16.58 1.25 1.51 20.72 1.54 1.87 24.87 1.93 2.24 29.01 2.29 2.54 33.16 2.58 2.72 37.30 2.76 2.89 ;I4usr 2.94 3.06 39.38 3.11 3.21 37.30 3.26 3.35 35.23 3.40 3.46 33.16 3.51 3.55 31.09 3.61 3.64 29.01 3.69 3.71 26.94 3.77 3.78 24.87 3.84 3.84 22.80 3.90 3.89 20.72 3.95 3.94 18.65 4.00 3.97 16.58 4.48 4.07 14.51 4.94 4.38 12.43 5.38 4.62 10.36 5.70 4.78 8.29 5.89 . '4.!!0t-i' 6.22 .,.5.96~:·: 4.90 4.14 5.92 4.80 2.07 5.77 4.65 0.00 5.52 4.48 0.00 5.23 4.32 0.00 4.96 4.17 0.00 4.72 4.02 0.00 4.55 3.99 0.00 4.38 3.98 0.00 4.23 3.97 0.00 4.08 3.96 0.00 3.99 3.94 0.00 3.98 3.93 0.00 3.97 3.92 0.00 3.96 3.91 0.00 3.95 3.89 0.00 3.94 3.88 0.00 3.92 3.87 0.00 3.91 3.86 0.00 3.90 3.85 0.00 3.89 3.83 0.00 3.87 3.82 0.00 3.86 3.81 0.00 3.85 3.80 0.00 3.84 3.79 0.00 3.83 3.78 0.00 3.82 3.76 0.00 3.80 3.75 0.00 3.79 3.74 0.00 3.78 3.73 0.00 3.77 3.71 0.00 3.76 3.70 0.00 3.74
po· ·r?<¥:-.. , . lnfl(l_w~ ~Outflow Inflow~. .Outflow· Inflow.< f_Oµtflow • WIC!w. outflow, i::Jpflow. Outfli>F:, f•f:it.'.''<· :•: .. 2yi'.F'i it~'.-~'Yi-1' ' /,:-JO)ir:li: G.10yr;'~: J2Syi:i~ ?'. 25yr ,; '&:;5,(fyt;. ,. ~oyr.;;i :;;'lilPoYr· . lOO)ir\'. ;:•. * 60: ¥ •. ': 0.00 2.85 0.00 3.31 0.00 3.52 0.00 3.69 0.00 3.73 if 61'. .. t 0.00 2.83 0.00 3.29 0.00 3.50 0.00 3.68 0.00 3.72 '• ,,62; 0.00 2.82 0.00 3.28 0.00 3.49 0.00 3.67 0.00 3.71 -•~.:f;; .. 0.00 2.81 0.00 3.27 0.00 3.48 0.00 3.65 0.00 3.69 }l~ ~ . ~\ >~· .t;,. 0.00 2.79 0.00 3.25 0.00 3.47 0.00 3.64 0.00 3.68 I · · \.:';,\ .•• 65 -~~ . /· 0.00 2.78 0.00 3.24 0.00 3.46 0.00 3.63 0.00 3.67 . ,i'f66· ;: ;,\,;.;-0.00 2.77 0.00 3.22 0.00 3.45 0.00 3.62 0.00 3.66 ""'' <:tv"'-0.00 2.75 0.00 3.21 0.00 3.43 0.00 3.61 0.00 3.65 F?6s·~ ,. 0.00 2.74 0.00 3.19 0.00 3.42 0.00 3.60 0.00 3.64 . "";:::,_69.•''~· 0.00 2.72 0.00 3.18 0.00 3.41 0.00 3.59 0.00 3.63 .. .:;.f-~_i:J.76£~·-:~, 0.00 2.71 0.00 3.16 0.00 3.39 0.00 3.57 0.00 3.62 . . <''l!!. 7li1i' •. 0.00 2.69 0.00 3.15 0.00 3.38 0.00 3.56 0.00 3.60 .;. ;:T eti'iJ2'c!f."'''. 0.00 2.68 0.00 3.14 0.00 3.37 0.00 3.55 0.00 3.59 • "'" :;i,73-'.ir,;~·., 0.00 2.67 0.00 3.12 0.00 3.35 0.00 3.54 0.00 3.58 -'·.· \74';<f' 0.00 2.65 0.00 3.11 0.00 3.34 0.00 3.53 0.00 3.57 .. :'·75,:;:•'-'.; 0.00 2.64 0.00 3.10 0.00 3.32 0.00 3.51 0.00 3.55 "'i-76' : 0.00 2.63 0.00 3.08 0.00 3.31 0.00 3.50 0.00 3.54 . ,·•·:,:N7.7.~,: .. 0.00 2.61 0.00 3.07 0.00 3.30 0.00 3.49 0.00 3.53 ·:'d:··qg":,·' 0.00 2.60 0.00 3.05 0.00 3.28 0.00 3.48 0.00 3.52 : \~7.9. 0.00 2.58 0.00 3.04 0.00 3.27 0.00 3.47 0.00 3.51 ·,·'·so· 0.00 2.55 0.00 3.02 0.00 3.25 0.00 3.46 0.00 3.50 ; .;$t'. ... 0.00 2.53 0.00 3.01 0.00 3.24 0.00 3.44 0.00 3.49 · .. ;;d~82' .. z 0.00 2.51 0.00 3.00 0.00 3.22 ;.. 0.00 3.43 0.00 3.47 .-/ "'~r &) ;,~:=~'.1 0.00 2.49 0.00 2.98 0.00 3.21 0.00 3.42 0.00 3.46 ~·}_/'?-'.~.Mr-< -~ 0.00 2.46 0.00 2.97 0.00 3.19 0.00 3.41 0.00 3.45 .·''85;. ';:': 0.00 2.44 0.00 2.96 0.00 3.18 0.00 3.39 0.00 3.44 ;,, ,_,,; 86·:,.,,· 0.00 2.42 0.00 2.94 0.00 3.17 0.00 3.38 0.00 3.42 :.;t . ~$1~. 0.00 2.39 0.00 2.93 0.00 3.15 0.00 3.36 0.00 3.41 ~ ::~.~~·~:l: ~f . .ii'; 0.00 2.36 0.00 2.91 0.00 3.14 0.00 3.35 0.00 3.40 i,;t~~-~ 0.00 2.33 0.00 2.90 0.00 3.13 0.00 3.33 0.00 3.38 \(•. :90:+ .; 0.00 2.31' 0.00 2.88 0.00 3.11 0.00 3.32 0.00 3.37 '~--. 9'.f;, 0.00 2.28 0.00 2.87 0.00 3.10 0.00 3.31 0.00 3.35 i;~~-~.2'' . _,., 0.00 2.25 0.00 2.86 0.00 3.09 0.00 3.29 0.00 3.34 ' ,,; . ..:~~, t'<~ 0.00 2.23 0.00 2.84 0.00 3.07 0.00 3.28 0.00 3.33 ·~l~\f ~?4.~'2;y; -~.: 0.00 2.20 0.00 2.83 0.00 3.06 0.00 3.27 0.00 3.31 . ~F·:;~;9s~r:t~\ --~: 0.00 2.17 0.00 2.82 0.00 3.04 0.00 3.25 0.00 3.30 .,,. ' 96';" '. 0.00 2.14 0.00 2.80 0.00 3.03 0.00 3.24 0.00 3.29 : :-in·~·· 0.00 2.11 0.00 2.79 0.00 3.01 0.00 3.22 0.00 3.27 . "•c.98r•&'·; · 0.00 2.07 0.00 2.78 0.00 3.00 0.00 3.21 0.00 3.26 "!;>'.-;? ~9P.'~~; . 0.00 2.04 0.00 2.76 0.00 2.99 0.00 3.19 0.00 3.24 '· ··;-,~;./?-10.Q.1,l;', 0.00 2.01 0.00 2.75 0.00 2.97 0.00 3.18 0.00 3.23 · · ,'.'"101t,. 1i 0.00 1.98 0.00 2.73 0.00 2.96 0.00 3.16 0.00 3.21 " 102 . 0.00 1.94 0.00 2.72 0.00 2.95 0.00 3.15 0.00 3.20 . ::Jo3· 0.00 1.90 0.00 2.70 0.00 2.93 0.00 3.14 0.00 3.18 .;; _:; 1,04~' ' . 0.00 1.87 0.00 2.69 0.00 2.92 0.00 3.13 0.00 3.17 "./;°105'::~'' 0.00 1.83 0.00 2.67 0.00 2.90 0.00 3.11 0.00 3.16 ·/fl()~'·>· .. 0.00 1.80 0.00 2.66 0.00 2.89 0.00 3.10 0.00 3.14 ~;i'.107~t ;-.~ 0.00 1.77 0.00 2.65 0.00 2.87 0.00 3.08 9.00 3.13 1()85'' 0.00 1.73 0.00 2.64 0.00 2.86 0.00 3.07 0.00 3.12 ., . c..109·::. 0.00 1.70 0.00 2.62 0.00 2.85 0.00 3.05 0.00 3.10 .t. l~Wi' ~,: 0.00 1.67 0.00 2.61 0.00 2.83 0.00 3.04 0.00 3.09 • ,.. l]J !!·. • ; . 0.00 1.64 0.00 2.59 0.00 2.82 0.00 3.02 0.00 3.07 ;,·\:i:ti).~~ ' 0.00 1.61 0.00 2.57 0.00 2.81 0.00 3.01 0.00 3.06 . '·1 i-;J:3':: -.i• 0.00 1.58 0.00 2.55 0.00 2.79 0.00 3.00 0.00 3.04 .. ·~"11:4.'' ,;' 0.00 1.56 0.00 2.53 0.00 2.78 0.00 2.99 0.00 3.03 . '~"'f'Jl5 ' ,,, . 0.00 1.53 0.00 2.50 0.00 2.76 0.00 2.97 0.00 3.02 d~16: ' 0.00 1.50 0.00. 2.48 0.00 2.75 0.00 2.96 0.00 3.00 ,5~:,.;1'17.,!l\. ' 0.00 1.48 0.00 2.46 0.00 2.73 0.00 2.95 0.00 2.99 :· .~:.ns·,~,: .. 0.00 1.45 0.00 2.43 0.00 2.72 0.00 2.93 0.00 2.98 i"l-~:.;3-J~l9 rr;.:'"6,~ 0.00 1.42 0.00 2.41 0.00 2.71 0.00 2.92 0.00 2.96 -~~iw>: 0.00 1.40 0.00 2.38 0.00 2.69 0.00 2.90 0.00 2.95 '''~4t ·. :: 0.00 1.38 0.00 2.35 0.00 2.68 o.po 2.89 0.00 2.94 ''·''122'2 ''.' 0.00 1.35 0.00 2.33 0.00 2.66 0.00 2.87 0.00 2.92
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24 .00
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20.00
18.00
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~
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~ 12.00 ro .c u
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8.00
6 .00
4 .00
2 .00
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(3.29
I , .. ---, ---
I
I .
2 Year Pond Inflow & Outflow Hydrographs
Appendix C
' i:.~
''
.'
--~ ----' ----
0 10 20 30 40 5 9 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
-Pond Inflow 2yr
--Pond Outflow 2yr
34.00
32.00
30.00
28 .00
26.00
24.00
22 .00
20.00
tJ
-; 18 .00
~ ra ti 16.00 .,,
0
14.00
12.00
10.00
8 .00
6 .00
4 .00
2.00
0 .00
30.75
3.69
-----.,,,. --,
I ..
'
-
10 Year Pond Inflow & Outflow Hydrographs
Appendix C
---------..... ---
0 10 20 30 40 so 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
-Pond Inflow lOyr
- -Pond Outflow lOyr
38 .00
36.00
34 .00
32.00
30.00
28.00
26 .00
24 .00
-22.00
-0
-; 20 .00
~
~ 18.00 u
"' c 16.00
14.00
12.00
10.00
8 .00
6.00
4.00
2 .00
0 .00
35 .12
.r3.88
.,,.. ------/
I
~.
25 Year Pond Inflow & Outflow Hydrographs
Appendix C
---------------
0 10 20 30 40 so 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
-Pond Inflow 25yr
- -Pond Outflow 25yr
42 .00
40 .00
38 .00
36.00
34.00
32.00
30 .00
28.00
26.00
u;-24.00
't;
-; 22 .00
~
~ 20 .00 u
"' c 18.00
16 .00
14.00
12.00
10.00
8.00
6 .00
4.00
2.00
0.00
,j~. /U
-11 rt.I"\
~<. ·--
------/ ,
~
50 Year Pond Inflow & Outflow Hydrographs
Appendix C
----------------
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
-Pond Inflow 50yr
- -Pond Outflow 50yr
Iii
44 .00
42.00
40.00
38.00
36.00
34.00
32 .00
30.00
28 .00
26.00
~ 24.00
QI
~ 22 .00
111 .c
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18.00
16.00
14.00
12.00
10.00
8.00
6 .00
4 .00
2.00
0 .00
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rs.96
I ' ' _. --/ ---, ,,
100 Year Pond Inflow & Outflow Hydrographs
Appendix C
--------------
0 10 20 30 40 so 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260
Time (min)
-Pond Inflow lOOyr
--Pond Outflow lOOyr
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Appendix C
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Appendix C
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Time (min)
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- -Post Development lOyr
25 Year Pre & Post Development Hydrographs
Appendix C
..... ..... ..... .....
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Time (min)
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- -Post Development 25yr
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Appendix C
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Time (min)
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- -Post Development SOyr
100 Year Pre & Post Development Hydrographs
Appendix C
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Appendix D -Technical Design Summary
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
The Cities of Bryan and College Station both require storm drainage design to follow these
Unified Stormwater Design Guidelines. Paragraph C2 of Section Ill (Administration) requires
submittal of a drainage report in support of the drainage plan (stormwater management plan)
proposed in connection with land development projects, both site projects and subdivisions.
That report may be submitted as a traditional prose report, complete with applicable maps,
graphs , tables and drawings, or it may take the form of a "Technical Design Summary". The
format and content for such a summary report shall be in substantial conformance with the
description in this Appendix to those Guidelines. In either format the report must answer the
questions (affirmative or negative) and provide, at minimum, the information prescribed in the
"Technical Design Summary" in this Appendix.
The Stormwater Management Technical Design Summary Report shall include several parts
as listed below. The information called for in each part must be provided as applicable. In
addition· to the requirements for the Executive Summary, this Appendix includes several
pages detailing the requirements for a Technical Design Summary Report as forms to be
completed. These are provided so that they may be copied and completed or scanned and
digitized. In addition, electronic versions of the report forms may be obtained from the City.
Requirements for the means (medium) of submittal are the same as for a conventional report
as detailed in Section Ill of these Guidelines.
Note: Part 1 -Executive Summary must accompany any drainage report
required to be provided in connection with any land development project ,
regardless of the format chosen for said report.
Note: Parts 2 through 6 are to be provided via the forms provided in this
Appendix. Brief statements should be included in the forms as requested,
but additional information should be attached as necessary.
Part 1 -Executive Summary Report
Part 2 -Project Administration
Part 3 -Project Characteristics
Part 4 -Drainage Concept and Design Parameters
Part 5 -Plans and Specifications
Part 6 -Conclusions and Attestation
STORMWATER MANAGEMENT TECHNICAL DESIGN SUMMARY REPORT
Part 1 -Executive Summary
This is to be a brief prose report that must address each of the seven areas listed below.
Ideally it will include one or more paragraphs about each item.
1. Name, address, and contact information of the engineer submitting the report, and
of the land owner and developer (or applicant if not the owner or developer). The
date of submittal should also be included.
2. Identification of the size and general nature of the proposed project, including any
proposed project phases . This paragraph should also include reference to
STORMWATER DESIGN GUIDELINES
Effective Feb r uary 2007
Page 1 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
applications that are in process with either City:, plat(s), site plans, zoning requests,
or clearing/grading permits , as well as reference to any application numbers or
codes assigned by the City to such request.
3. The location of the project should be described . This should identify the Named
Regulatory Watershed(s) in which it is located, how the entire project area is
situated therein , whether the property straddles a watershed or basin divide, the
approximate acreage in each basin, and whether its position in the Watershed
dictates use of detention design. The approximate proportion of the property in the
city limits and within the ET J is to be identified , including whether the property
straddles city jurisdictional lines. If any portion of the property is in floodplains as
described in Flood Insurance Rate Maps published by FEMA that should be
disclosed.
4. The hydrologic characteristics of the property are to be described in broad terms:
existing land cover; how and where stormwater drains to and from neighboring
properties; ponds or wetland areas that tend to detain or store stormwater; existing
creeks , channels, and swales crossing or serving the property; all existing drainage
easements (or ROW) on the property, or on neighboring properties if they service
runoff to or from the property.
5. The general plan for managing stormwater in the entire project area must be
outlined to include the approximate size, and extent of use, of any of the following
features: storm drains coupled with streets; detention I retention facilities ; buried
conveyance conduit independent of streets; swales or channels; bridges or culverts;
outfalls to principal watercourses or their tributaries; and treatment(s) of existing
watercourses. Also, any plans for reclaiming land within floodplain areas must be
outlined.
6. Coordination and permitting of stormwater matters must be addressed . This is to
include any specialized coordination that has occurred or is planned with other
entities (local, state , or federal). This may include agencies such as Brazos County
government, the Brazos River Authority , the Texas A&M University System, the
Texas Department of Transportation, the Texas Commission for Environmental
Quality, the US Army Corps -of Engineers, the US Environmental Protection Agency,
et al. Mention must be made of any permits , agreements , or understandings that
pertain to the project.
7. Reference is to be made to the full drainage report (or the Technical Design
Summary Report) which the executive summary represents. The principal
elements of the main report (and its length), including any maps , drawings or
construction documents, should be itemized. An example statement might be:
"One __ ,_-page drainage report dated one set of
construction drawings (_sheets) dated , and a
___ -page specifications document dated comprise
the drainage report for this project."
STORMWATER DESIGN GUIDELINES
Effective February 2007
. Page 2 of 26 APPENDIX. D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 2 -Project Administration I Start (Page 2.1)
':
.-. , .. _. .. ,:.·· ····Engineering and ·Desigri Professionals lnfQrmatio!'l · · ;;, .. '~~·· ,. 'l;'4.,
Eng ineering F i rm Name and Address: Jurisdiction
S chultz Engineering, LLC City: Bryan
P.O. Box 11995 ./ College Station
Colleg e Station, Tx 77842 Date of Submittal:
Lead Engineer's Name and Contact lnfo .(phone , e-mail, fax): Other:
Jo seph P. Schultz, PE email: joeschultz84@verizon.net
Phone: 764-3900 fax: 764-3910
Supporting Engineering I Consulting Firm(s): Other contacts:
n/a
. ' ... : Developer l Own~rJ ~pplicant lnforina~ion .. ' . , :·.··fr.~ ;;, : . J<'.: : . ...
Developer I Applicant Name and Address: Phone and e-mail:
D WS Development, Inc. 979-229-5118
P.O. Box 4508 david@dwsdevelopmenlcom
B ryan, Texas 77805
Property Owner(s) if not Developer I Applicant (&address): Phone and e-mail :
Charles & Ma ry Turn er -32 70 Rock Prairie Road, College Station, 1 979. 764.296 7 -diamondt33 75@y ahoo.
. ' • : . -~ • . "l i' ~')~roj~ctldentifica~ion .· "'~-.: __ _· :S ~:'"';· ,,_" ."·~~~,~.,"·:, .... ?' ... :;:-: ~~-': ~
Development Name: Equinox Subdivision, Phase 1
Is subject property a site project, a single-phase subdivision , or part of a multi-phase subdivision?
M ulti-Phase Subdivision If multi-phase , subject property is phase 1 of 2
Legal description of subject property (phase) or Project Area:
(see Section II , Paragraph B-3a)
A 000 701 , CRAWFORD BURNETT (/CL), TRACT 182.1, 21.8501 A CRES
If subject property (phase) is second or later phase of a project, describe general status of all
earlier phases. For most recent earlier phase Include submittal and review dates.
General Location of Project Area, or subject property (phase):
3270 Rock Prairie Road We st approx imately 700 feet west of th e intersection between Keef er Loop and
Rock Prairie Road Wesl
In City Limits? Extraterritorial Jurisdiction (acreage):
Bryan: acres. Bryan : College Station:
College Station : 9.269 acres. Acreage Outside ET J:
STORMWATER DESIGN GUIDELINES
Effecti ve February 2007
Page 3 of 26 APPENDIX. D : TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Roadways abutting or within Project Area or Abutting tracts, platted land, or built
subject property: developments:
Rock Prairie Road
Towers Parkway
Sophies Lane
Kate Lane
Diamond T Storage
Buena Vida Subdivision
Barracks II Subdivision
Named Regulatory Watercourse(s) & Watershed(s): Tributary Basin(s):
Bee Creek Bee Creek
Final Plat File#: NIA Date : -----------Preliminary Plat File #: ___ _
Name: Status and Vol/Pg: submitted with this project
File#: -----
Zon ing Type: Townhouse Existing or Proposed? Existing Case Code: -----
Case Date Status:
Zoning Type: Gen Sub Existing or Proposed? Existing Case Code: ____ _
Case Date Status:
Preliminary Report Required? NIA Submittal Date _____ Review Date ____ _
Review Comments Addressed? Yes __ No__ In Writing? __ _ When? -----
Compliance With Preliminary Drainage Report. Briefly describe (or attach documentation
explaining) any deviation(s) from provisions· of Preliminary Drainage Report, if any .
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 4 of 26 APPENDIX. D : TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 2 -Project Administration j Continued (page 2.3)
,, ':;:. ;f c;~t " .. Coorqi11ation Fo'f-Ffroj~ct or Subject Propef-ty (or Phase )'. ·. ' . ~-.,·ce:·''•5"1rc?~
Note: For any Coordination of stormwater matters indicated below, attach documentation
describing and substantiating any agreements, understand ings, contracts , or approvals.
Coordination
With Other
Departments of
Jurisdiction
City (Bryan or
Dept. Contact: Date: Subject:
College Sta ti on}f------+-------+-------+--------------1
Coordination With
Non-jurisdiction
City Needed?
Yes __ No__:/_
Coordination with
Brazos County
Needed?
Yes __ No_:[_
Coordination wi t h
TxDOT Needed?
Yes __ No_:[_
Coordination wi t h
TAMUS Needed?.
Yes No ./
Summarize need(s) & actions taken (include contacts & dates):
Summarize need(s) & actions taken (include contacts & dates):
Summarize need(s) & actions taken (include contacts & dates):
Summarize need(s) & actions taken (i nclude contacts & dates):
As t o stormwater management, are pennits required for the proposed work from any of the entities
listed below? If so , summarize status of efforts toward that objective in spaces below.
Entity PAermittedd'?: Status of Actions (include dates) pprove .
US Anny Crops of
Engineers
No ./ Yes _
US Environmental
Protection Agency
No ./ Yes_
Texas Comm ission on
Environmental Quality
No Yes ./
Brazos River
A uthority
No_:/__ Yes _
General Permit
150000
STORMWATER DESIGN GUIDELINES
Effective February 2007
It will be filed by the Construction Contra ctor.
Page 5 of 26 APPENDIX. D : TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 3 -Property Characteristics I Start (Page 3.1)
Existing: Land proposed for development currently used, including extent of impervious cover?
Currently vacant. Proposed development is residential subdivision. High density. Impervious cover= 65%
Site
Development
Project
(select all
applicable)
Subdivision
Development
Project
Describe
Nature and
Size of
Proposed
Project
__ Redevelopment of one platted lot, or two or more adjoining platted lots.
__ Building on a single platted lot of undeveloped land.
__ Building on two or more platted adjoining lots of undeveloped land.
__ Building on a single lot, or adjoining lots, where proposed plat will not form
a new street (but may include ROW dedication to existing streets).
__ Other (explain):
__ Construction of streets and utilities to serve one or more platted lots.
__:!._Construction of streets and utilities to serve one or more proposed lots on
lands represented by pending plats.
Site projects: building use(s), approximate floor space, impervious cover ratio .
Subdivisions: number of lots by general type of use, linear feet of streets and
drainage easements or ROW.
51 lots
Approximately 2525' of streets
3.02ac.ROW
Is any work planned on land that is not platted If yes, explain:
or on land for which platting is not pending?
./ No Yes
Is any part of subject property abutting a Named Regulatory Watercourse I N ./ y
(Section II, Paragraph B1) or a tributary thereof? 0 --es --
Is any part of subject property in floodplain I No ./ Yes Rate Ma 48041C0305-F
area of a FEMA-regulated watercourse? ----P -----
Encroachment(s)
into Floodplain
areas planned?
No ./
Yes __
Encroachment purpose(s): __ Building site(s) __ Road crossing(s)
__ Utility crossing(s) __ Other (explain):
NIA
If floodplain areas not shown on Rate Maps, has work been done toward amending the FEMA-
approved Flood Study to define allowable encroachments in proposed areas? Explain.
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 6 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 3 -ProQert~ Characteristics I Continued (Page 3.2)
'• ::,~''.'.5I. ~ ~"' ,r, - .
Hy:drologic Attrib~t~s of Subje~t Propertyi (or Pha~ef , .. ·'. "'iL~. ·
Has an earlier hydrologic analysis been done for larger area including subject property?
Yes Reference the study (&date) here, and attach copy if not already in City files.
--
Is the stormwater management plan for the property !n substantial conformance with the
earlier study? Yes - -
No --If not, explain how it differs.
No If subject property is not part of multi-phase project, describe stormwater management
plan for the property in Part 4 . _L_
If property is part of multi-phase project, provide overview of stormwater management plan
for Project Area here. In Part 4 describe how plan for subject property will comply
therewith.
See Attached Drainage Report
Do existing topographic features on subject property store or detain runoff? __:!__No --Yes
Describe them (include approximate size, volume, outfall, model, etc).
Any known drainage or flooding problems in areas near subject property? __:!__No --Yes
Identify:
Based on location of study property in a watershed , is Type 1 Detention (flood control) needed?
(see Table B-1 in Appendix B)
_{__ Detention is required. --Need must be evaluated . __ Detention not required.
What decision has been reached? By whom?
If the need for How was determination made?
Type 1 Detention
must be evaluated :
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 7 of 26 APPENDIX . D: TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 3 -Property Characteristics I Continued (Page 13.3)
.. ~r .·~Hydrologl~ Attributes ~fSubj~~t erop~,rty'(or ·~~ase)(contiou,ed):;~ ~;. .. ·· "··~
Does subject property straddle a Watershed or Basin divide? No _:f__ Yes If yes ,
describe sol its below. In Part 4 describe desiqn concept for handling this.
Watershed or Basin Larger acreage Lesser acreage
Bee Creek x
Above-Project Areas(Section II, Paragraph B3-a)
Does Project Area (project or phase) receive runoff from upland areas? _{_No Yes
Size(s) of area(s) in acres : 1) 2) 3) 4) __ _
Flow Characteristics (each instance) (overland sheet, shallow concentrated, recognizable
concentrated section(s), small creek (non-regulatory), regulatory Watercourse or tributary);
Flow determination : Outline hydrologic methods and assumptions:
Rational Equation.
Does storm runoff drain from public easements or ROW onto or across subject property?
_:[_No __ Yes If yes , describe facilities in easement or ROW:
Are changes in runoff characteristics subject to change in future? Explain
Conveyance Pathways (Section II, Paragraph C2)
Must runoff from study property drain across lower properties before reaching a Regulatory
Watercourse or tributary? No ./ Yes
Describe length and characteristics of each conveyance pathway(s). Include ownership of
property(ies ).
Refer to Attached Drainage Report
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 8 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 3 -Proj;!ert~ Characteristics I Continued (Page 3.4)
«·. , ...... ) · Hydrologic: Attri~utes· ~f Subjec-.t P'fope·rty · (or ~Hi~e) ( continyed) · · 'iii-.. ~.'.'..~':
Conveyance Pathways (continued)
Do drainage · If yes, for what part of length? 0 % Created by?__.{_ plat, or
easements __ instrument. If instrument(s), describe their provisions.
exist for any
part of Drainage from this site will be conveyed via public right of way and/or existing
pathway(s)? storm sewer pipe in easement
_{_ No
Yes --
Where runoff must cross lower properties, describe characteristics of abutting lower
property(ies). (Existing watercourses? Easement or Consent aquired?)
Refer to attached drainage report.
Pathway
Areas
Describe any built br improved drainage facilities existing near the property (culverts ,
bridges, lined channels, buried conduit, swales, detention ponds, etc).
Existing roadside ditch along Rock Prairie Road West, Existing curb and gutter and storm
sewer system for Buena Vida Subdivision, Existing storm sewer system for Barracks II Section
IOI.
Nearby
Drainage Do any of these have hydrologic or hydraulic influence on proposed stormwater Facilities design? No _:/_ Yes If yes, explain: --
limit proposed runoff flows to pre-development conditions
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 9 of 26 APPENDIX. D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Start (Page 4.1)
I-' ·." ,. ·:"'-"•
... ,, .. "' •. • .. ··,.. .. ..,,., '•. "<• ·' , •'':F· _,, .. -~·"'· :" i • ., .•. ' ':~'' .. ~: .. '· , Storniwater Mali'!9~rne~t Cof:lceJ>t ··. , ' .: •. ,. .• ,. ·•1.1r• -,,;rr· :•r., ,.
Discharge(s) From Upland Area(s)
If runoff is to be received from upland areas, what design drainage features will be used to
accommodate it and insure it is not blocked by future development? Describe for each area,
flow section, or discharge point.
NIA
Discharge(s) To Lower Property(ies) (Section II, Paragraph E1)
Does project include drainage features (existing or future) proposed to become public via
platting? __L No --Yes Separate Instrument? _ -No -_Yes
Per Guidelines reference above, how will __ Establishing Easements (Scenario 1 ). runoff be discharged to neighboring __ Pre-development Release (Scenario 2) property(ies)? _./_ Combination of the two Scenarios
Scenario 1: If easements are proposed, describe where needed, and provide status of actions
on each. (Attached Exhibit# )
refer to final plat for easements proposed
Scenario 2: Provide general description of how release(s) will be managed to pre-development
conditions (detention, sheet flow, partially concentrated, etc.). (Attached Exhibit# C )
Detention Ponds and reduction in drainage area.
Com bi nation: If combination is proposed, explain how discharge will differ from pre-
development conditions at the property line for each area (or point) of release.
The discharge will be less than pre-development conditions.
If Scenario 2, or Combination are to be used , has proposed design been coord inated with
owner(s) of receiving property(ies)? No __L Yes Explain and provide
documentation .
The discharge will be less than pre-development conditions and adjacent land owners will be contacted
prior to work in recorded easements.
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 10 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.2)
, •,Jr\ •. ·~ . •· .. S.tormwaterManagement goncept (&on,tinuedf :·-.,. . '""'~ · ·i~ ~ '.:i~·:,
Within Project Area Of Multi-Phase Project
Will project result
in shifting runoff
between Basins or
Identify gaining Basins or Watersheds and acres shifting:
1--~~~~~~~~~~~~~~~~~~~~~~~~~---1
between
Watersheds?
What design and mitigation is used to compensate for increased runoff
from gaining basin or watershed?
I No
Yes
How will runoff from Project
Area be mitigated to pre-
development conditions?
Select any or all of 1, 2,
and/or 3, and explain below.
1. __ With facility(ies) involving other development projects.
2. _L Establishing features to serve overall Project Area.
3 . _L On phase (or site) project basis within Project Area .
1. Shared facility (type & location of facility; design drainage area served; relationship to size of
Project Area): (Attached Exhibit #B )
There are two proposed detention ponds, one adjacent to Rock Prairie Road and one adjacent to
Barracks II Section JOI
2. For Overall Project Area (type & location of facilities): (Attached Exhibit #B )
The two proposed detention ponds will in full build-out serve the entire development
3 . By ohase (or site) project: Describe planned mitigation measures for phases (or sites) in
subsequent questions of this Part.
t'-·
-0
<I> en c: (1)
ffi >-a:
en c:
Cl ·u;
(1) 0 Oz
-ro Jil
~
<(
Are aquatic echosystems proposed? __ No
project(s)?
__ Yes In which phase(s) or
Are other Best Management Practices for reducing stormwater pollutants proposed?
__ No ~Yes Summarize type of BMP and extent of use :
Silt fences, construction exits
If design of any runoff-handling facilities deviate from provisions of B-CS Technical
Specifications, check type facility(ies) and explain in later questions.
__ Detention elements __ Conduit elements __ Channel features
__ Swales __ Ditches __ Inlets __ Valley gutters __ Outfalls
__ Culvert features __ Bridges Other
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 11of26 APPENDIX . D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.3)
, ,,o':'·; ·· · , :-., '·· -~ siorrli.water M'anagertie.nt c<lpcept )J?!Jtfnued )"',2; :~·~~:·'· "" ~-. ~; ~ :.
Within Project Area Of Multi-Phase Project (continued)
Will Project Area include bridge(s) or culvert(s)? __ No____:!._ Yes Identify type and
general size and In which phase(s).
A box culvert will be installed in the existing Rock Prairie Road roadside ditch at the Tower's Parkway
Connection to Rock Prairie Road
If detention/retention serves (will serve) overall Project Area, describe how it relates to subject
phase or site project (physical location, conveyance pathway(s), construction sequence):
Two detention ponds are proposed on site, refer to Exhibit B and the attached drainage report for
detailed information.
Within Or Serving Subject Property (Phase, or Site)
If property part of larger Project Area, is design in substantial conformance with earlier analysis
and report for larger area? _:!___Yes No, then summarize the difference(s): . ,
Identify whether each of the types of drainage features listed below are included, extent of use,
and general characteristics.
C'-·
"'C
a> en en a>
::J >-en ~ I
.g 0
'iii z
~,/I ....
<l'.
Typical shape? I Surfaces?
Steepest side slopes: Usual front slopes: Usual back slopes:
Flow line slopes: least. ____ _ Typical distance from travelway:
typical greatest ___ _ (Attached Exhibit # )
Are longitudinal culvert ends in compliance with B-CS Standard Specifications?
___ Yes No, then explain:
At intersections or otherwise, do valley gutters cross arterial or collector streets?
./ No __ Yes lfyesexplain:
Are valley gutters proposed to cross any street away from an intersection?
__ No ./ Yes Explain: (number of locations?)
A valley gutter is proposed mid block on Sophies Lane to provide cross drainage where
storm sewer inlets and pipes can not be used due to grading issues.
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 12 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.4)
. .~ ~.·~?·:,. -~-.. · · · · s,tormwa!e'r , Mana9eme~fConcept {~,o nti~ued) . · ;_:~~i · · ·;;r';~. '7,~~~;:,~
Within Or Serving Subject Property (Phase, or Site) (continued)
C'-• -c
5l (/)
:::J Q)
E >-
2 ./I ~ en
c -~ ~
Gutter line slopes: Least 0.80 Usual 0.80 Greatest 0.80
Are inlets recessed on arterial and collector streets? _L_ Yes
identify where and why.
__ No If "no",
Will inlets capture 10-year design stormflow to prevent flooding of intersections (arterial
with arterial or collector)? _L_ Yes __ No If no, explain where and why not.
Will inlet size and placement prevent exceeding allowable water spread for 10-year
design storm throughout site (or phase)? _ ./ _Yes __ No If no, explain.
Sag curves: Are inlets placed at low points? _L_ Yes __ No Are inlets and
conduit sized to prevent 100-year stormflow from ponding at greater than 24 inches?
_L_ Yes __ No Explain "no" answers.
Will 100-yr stormflow be contained in combination of ROW and buried conduit on
whole length of all streets? __L_ Yes __ No If no, describe where and why.
Do designs for curb, gutter, and inlets comply with B-CS Technical Specifications?
./ Yes __ No If not, describe difference(s) and attach justification .
Are any 12-inch laterals used? _L_ No
used .
__ Yes Identify length(s) and where
Pipe runs between system I Typical 50' Longest 150'
access _points (feet): ~----""'""'-'-----
Are junction boxes used at each bend? _L Yes
and why.
__ No If not , explain where
-c_§ I 1------------------------,------------t
en Are downstream soffits at or below upstream soffits? Least amount that hydraulic
.!!!. Yes ./ No __ If not, explain where and why: grade line is below gutter line
(system-wide):
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 13 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Rev ised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.5)
. ;-, -, • .,.,.. ~~·;~· ~;' .~;·· .• ·•L • > , •. • ' • ' ". ,,-,,, . /i-\~,.'J'~'
~ ,..,. ~::~tormwater' ~anagement,<;oncept (co,9~hiued). >' ::~,:i:t±,~~ '
y .... ~, "·
'1.", --.· }:';.
Within Or Serving Subject Property (Phase ; or Site) (continued)
-Describe watercourse(s), or system(s) receiving system discharge(s) below
Cl) (include design discharge velocity, and angle between converging flow lines). Q)
(.) c 1) Watercourse (or system), velocity, and angle? co -Cl)
.!;;;; Storm sewer system drains into proposed drainage channel
Q)
L.. -o al E 2) Watercourse (or system), velocity, and angle?
::i L.. c 0 ·---c . o.8
0 c .._...-
~ E a>
a> E 3) Watercourse (or system), velocity, and angle?
-co ~ ~Cl)
Cl) Q) ::i
c 32 0
·-> e! e
-0 a.
E-For each outfall above , what measures are taken to prevent erosion or scour of L.. Q)
0 Q) receiving and all facilities at juncture?
-..c Cl) Cl)
Q) 1) rock rip rap is proposed at the storm sewer outfalls. -e! co 2) a.
Q)
Cl)
c 3) _£.
Are swale(s) situated along property lines between properties? ~No --Yes
Number of instances: For each instance answer the following questions.
Surface treatments (including low-flow flumes if any):
grass lined and concrete flumes in low flow areas
~·
Cl) -Q)
~Cl)
-Q) Flow line slopes (minimum and maximum): Cl)>-c 1.1%-1.4% ~ I
-0 0 5l z Outfall characteristics for each (velocity, convergent angle, & end treatment). ::i
iv'I Outfalls into the detention pond 2
Cl)
Q)
L.. Will 100-year design storm runoff be contained within easement(s) or platted drainage <(
ROW in all instances? _L_ Yes --No If "no" explain:
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 14 of 26 APPENDIX. D : TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.6)
. .·<: '·.-' :: · · . ''~ storiliwater M~hiigement concipt(c~~ti ... r.ued);f ~~~'i"' , ! ,, W''y\f '· .; ···''·'•; "'·-/ ' ·"' ., •. . ' ... _, :·-; ,., .. ' . ~-. .. _,. ~' ". ·~·')'¥)>', .
Within Or Serving Subject Property (Phase, or Site) (continued)
en
Q)
..r::.
.B
i5
Q)
-0 ·c;;
-0 ro
&
Are roadside ditches used? 1-_ No __ Yes If so, provide the following:
Is 25-year flow contained with 6 inches of freeboard throughout ? __ Yes __ No
Are top of banks separated from road shoulders 2 feet or more? __ Yes __ No
Are all ditch sections trapezoidal and at least 1.5 feet deep? __ Yes __ No
For any "no" answers provide location(s) and explain:
If conduit is beneath a swale, provide the following information (each instance).
Instance 1 Describe general location, approximate length :
Is 100-year design flow contained in conduit/swale combination?
If "no" explain:
Yes No
l w
0
~ t--S-pa_c_e_f_o_r_1-00---y-ea_r_s-to-rm~-flo_w_? ___ R_O_W~~~~E-a_s_e_m_e-nt~~~-W~id_t_h~~~~~~
z 00 1-=-.!:..::..::..::_:..::.:......:..::.,=...!...::..=:-=.::.:.:.:.:..:...:.:..::..:.:...:........:,,.:.=...:...:....:====:........:==.:.:.:.:..::..::..:====-_.:.::..:.:..:::.:..::========:__j
c: Swale Surface type , minimum Conduit Type and size, minimum and maximum
1 I ~ and maximum slopes: slopes, design storm:
0
.+:i ~ '5 t--~~--~~~~~~~~~~~~~~-..,-~~~~~~~~~~~--t
a; 16 Inlets Describe how conduit is loaded (from streets/storm drains , inlets by type):
c: >. c: c: ~ ro
(.) ....
c: .E
Q) c: a. 0 0 :;:::; .,._ ro
Access Describe how maintenance access is provided (to swale , into conduit):
~ E ~ .E .£ t--~~~~=:-~....--~~-,-.,.--~~~~~~-,-~~~~~~~~~~~--i
.£ Q) Instance 2 Describe general location, approximate length:
-o E
Q) ro ~ en en ~ t--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~---i
c: .._, Is 100-year design flow contained in conduit/swale combination? __ Yes __ No
E -~ If "no " explain :
~ a. :0 Q) t--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~---i
E ~ ~S~pa=c=e~f=o~r~1~00~-~y~ea=r~s=to=r~m..:...:.:.flo~w~?~-~R~O~W.:...:....:====:........:E=a=s~e~m~e~nt:.====--W.:..:...:.id=t~h-=========-~ 8 en
~ 2 -5 ~ c: ro
Swale Surface type , minimum
and maximum slopes:
Conduit Type and size, minimum and maximum
slopes, design storm:
0 a. t--~~~~~~~~~~--'~~~~~~~~~~~~~~~~~~---l
~ ~ Inlets Describe how conduit is loaded (from streets/storm drains, inlets by type):
~~ en
~
<C Access Describe how ma intenance access is provided (to swale, into conduit):
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 15 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Revised August 2012
'
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.7)
···'"~;·t;'.;\;: ,. , ., $~ormwate~.~~nag'ement Con'cept {co'~4n.uedt ~•~,~-:.~+JJ-:, ~ ,,.;·\~:;;.
Within Or Serving Subject Property {Phase, or Site) {continued)
c
'(ii
Ci. E >< 2 LU
If "yes" provide the following information for each instance:
Instance 1 Describe general location, approximate length, surfacing:
Channel 1: Outflow of Pipe 101 Hydro mulch seeding is proposed.
-t--~~~~~~~~~~~~~~~~--,--~~~~~~~~~~~~----l :g vi Is 100-year design flow contained in swale? _L_ Yes __ No Is swale wholly
c a> within drainage ROW? __ Yes _L__ No Explain "no" answers: .;;1 r~~h_e_p_r_op_e~rry~w_il~l-ha_v~e_a_b_w_n_k_et_e_a_se_m_e_n_l~~~~~~~~~~~~~~~~----i
u Access Describe how maintenance access is provide: ~ 0 =s z 1 I r~-h_e_p_r_op_e_rry~w_u_z_ha_v_e_a_b_w_n_k_e_te_a_se_m_e_n_l~~~~~~~~~~~~~~~~--l
Instance 2 Describe general location, approximate length , surfacing:
"O
Q) '§ ~ Channel 2: Outflow of Pipe 202 Hydromulch seeding is proposed.
.0 c
-Q) 6 E £ Q) t---:-:,-,:-~---:---:~-:-~~~~,--,--~-:--:-~...,.-~~~~-,-,-~~~~~~~----i
'§: ~ Is 100-year design flow contained in swale? _L_ Yes __ No Is swale wholly
oo ~ within drainage ROW? __ Yes ./ No Explain "no" answers :
~ 0
~ ~ The properry has a blanket easement.
·-c:: Access Describe how maintenance access is provided:
$: .2
J5
:::l c. The properry will have a blanket easement.
Instance 3, 4. etc. If swales are used in more than two instances, attach sheet
providing all above informati on for each instance.
"New" channels: Will any area(s) of concentrated flow be channelized (deepened,
widened , or straightened) or otherwise altered? _L_ No __ Yes If only slightly
. ~h§lp_ed, see. "Swales" in this Part. If crec;iting side banks, provide information below.
W ill desi~rfr~pHcate natural channel? __ Yes __ No If "no", for each instance
describe section shape & area, flow line slope (min. & max.), surfaces , and 100-year
design flow, and amount of freeboard:
Instance 1:
Instance 2:
Instance 3:
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 16 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Rev ised August 2012
. SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.8)
.. -~tormwater Manageme-~tct>ncept (t~~ti~uE!dl : · ». ·x~; 1 : .. · ~ •.
'!.~ ,;... "'-'· ..
'·-'.'· ~ '· .•... >· '·
Within Or Serving Subject Property (Phase, or Site) (continued)
Existing channels {small creeks}: Are these used? _L_ No --Yes
If "yes" provide the information below.
Will small creeks and their floodplains remain undisturbed? __ Yes No How
many disturbance instances? Identify each planned location :
For each location , describe length and general type of proposed improvement
(including floodplain changes):
'
For each location, describe section shape & area , flow line slope (min. & max.),
surfaces, and 100-year design flow .
--0
Q)
:::::J c :;:; Watercourses {and tributaries): Aside from fringe changes, are Regulatory c
0 Watercourses proposed to be altered? _L_ No Yes Explain below. ~ --en c Submit full report describing proposed changes to Regulatory Watercourses. Address
Q) existing and proposed section size and shape, surfaces, alignment, flow line changes , E
Q) length affected , and capacity, and provide full documentation of analysis procedures > 0 and data. Is full report submitted? Yes No If "no" explain: ._ --c..
E -
03 c c
ct! All Proposed Channel Work: For all proposed channel work , provide information ..r:::.
(.) requested in next three boxes.
If design is to replicate natural channel, identify location and length here, and describe
design in Special Design section of this Part of Report.
NIA
W ill 100-year flow be contained with one foot of freeboard? _L Yes --No If
not, identify location and explain:
Are ROW I easements sized to contain channel and required maintenance space?
_L Yes --No If not, identify location(s) and explain:
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 17 of 26 APPENDIX. D : TECH . DESIGN SUMMARY
As Rev ised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.9)
If ,1'].,,)' ."; ' . -··-. ' "" .,. :, ··:;~~· . . ~tormwat~r· Managelnef'\t'C,(>nce pf{cob~!n ued)·-_ ·-.. :' -.. -~-.> " .. , .
Within Or Serving Subject Property (Phase, or Site) (continued)
How many facilities for subject property project? 2 For each provide info . below.
For each dry-type facilitiy: Facility 1 Facility 2
Acres served & design volume+ 10% 3.54 33,071 cf 6.14 43,426
100-yr volume: free flow & plugged 16,101 cf 21,066 cf 28,430 30,582
Design discharge (10 yr & 25 yr) 6.15 6.46 3.55 3.74
Spillway crest at 100-yrWSE? __:[_yes --no _{_yes --no
Berms 6 inches above plugged WSE? __:[_yes --no _{_yes --no
Explain any "no" answers:
en
Q) >-
11 For each facility what is 25-yr design Q, and design of outlet structure?
Facility 1 : 6.46 cfs -proposed 15" outfall pipe
0 z Facility 2: 3. 74 cfs -Proposed Concrete Riser with Narrow Weir Slot
I Do outlets and spillways discharge into a public facility in easement or ROW?
Facility 1: _L Yes No Facility 2: ./ Yes No ----C'-· If "no" explain: "O
Q) en
0 a.
0 .....
Cl. For each, what is velocity of 25-yr design discharge at outlet? & at spillway? en
Q) Facility 1: 5.26 & N IA Facility 2: 2.12 & N IA E ·u Are energy dissipation measures used? __:[_ No Yes Describe type and co --u.. location:
c:
.Q
-~
Q)
0
Q) For each, is spillway surface treatment other than concrete? Yes or no , and describe: .....
<(
Facility 1: Grass lined overflow spillway
Facility 2: Grass lined overflow spillway
For each, what measures are taken to prevent erosion or scour at receiving facility?
Facility 1: Concrete safety end treatment
Facility 2: Discharges directly into existing storm sewer sy~tem
If berms are used give heights, slopes and surface treatments of sides.
Facility 1:
4H: 1 V side slopes, grass slopes
Facility 2: 4H: 1 V side slopes, grass slopes
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 18 of 26 APPENDI X . D : TECH . DESIGN SUMMARY
As Rev ised August 2012
SECTION IX
APPEND IX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concel;!t and Design Parameters I Continued (Page 4.10)
.. ·t ; A • ' :•• ' 0 • ·~ ' ,___'.'.> •;.;,. ~~ • • 0 • 0 .. ~},:"' < ' 0 ~ \ • . , ' .''):f;\ ; . S,t~rlT!wat~r M!lnagerrlent ~oricept·J9~£1tiriued) ~, ' ,, . .-, .. . . . .... , .. . "'-• ... ~;: . • . >f -:.~·"-·
Within Or Serving Subject Property (Phase, or Site) (continued)
Do structures comply with B-CS Specifications? Yes or no, and explain if "no":
Facility 1;
(/) Yes ~ :: :c-
(,) Q.l ro ~ Facility 2 : u. c
c:;::; Yes 0 c
:.p 0 c (,)
<Ll--For additional facilities provide all same information on a separate sheet. Q.l
0
Are parking areas to be used for detention? __!{__ No --Yes What is
maximum depth due to required design storm?
Roadside Ditches: Will culverts serve access driveways at roadside ditches?
--No --Yes If "yes", provide information in next two boxes.
Will 25-yr. flow pass without flowing over driveway in all cases? --Yes --No
W ithout causing flowing or standing water on public roadway? --Yes --No
Designs & materials comply with B-CS Technical Specifications? __ Yes --No
Explain any "no" answers:
C'-·
(/)
Ol c
'(ii
Are culverts parallel to public roadway alignment? __ Yes No Explain : (/)
0 --.... (/) ~ (,)
Q.l
Q.l
-ro >-
>
I ·;:: Creeks at Private Drives: Do private driveways, drives, or streets cross drainage a. -ways that serve Above-Project areas or are in public easements/ ROW? ro
"C 0 No Yes If "yes" provide information be lo w . Q.l z ----~.ti How many instances? Describe location and provide information below.
Q.l Location 1: > :;
(,)
~ Location 2 :
<(
Location 3:
For each location enter value for: 1 2 3
Design year passing without toping travelway?
Water depth on travelway at 25-year flow?
Water depth on travelway at 100-year flow?
For more instances describe location and same information on separate sheet.
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 1~ of 26 APPENDIX . D : TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage ConceQt and Design Parameters J Continued (Page 4.11)
' .. -' ~\;: >·.· •• ,• ... '··'·· s~orm~ater Managert)en~ Cjincepf(c~.J~.i.~ued) ;.' ~~~~;:.q:~f .. ,~ ·': »t:·:;z:~'"
Within Or Serving Subject Property (Phase, or Site) (continued)
Named RegulatoD£ Watercourses {&Tributaries}: Are culverts proposed on these
facilities? _L_ No __ Yes, then provide full report documenting assumptions,
criteria, analysis, computer programs, and study findings that support proposed
design(s). Is report provided? __ Yes --No If "no", explain:
-Arterial or Major Collector Streets: Will culverts serve these types of roadways? a>
Q) _. _No _:f,_ Yes How many instances? 1 For each identify the ..c
Cf)
location and provide the information below. Q)
(/) "§ Instance 1: Proposed culvert crossing at Towers Parkway where it meets Rock Prairie a> ro >-c.
ii~ Instance 2:
Instance 3:
c:
0
~ Yes or No for the 100-year design flow: 1 2 3 o ro z E
I~ Headwater WSE 1 foot below lowest curb top?
Spread of headwater within ROW or easement?
E C'-· ro Is velocity limited per conditions (Table C-11 )? Cf) Cf)
g>-c Explain any "no" answer(s): ·-c: ~ ro
0 c: t>-g
>-ro ro u ::= .Q
-c Q) ro ..c Minor Collector or Local Streets: Will culverts serve these types of streets? e ·c u u No Yes How many instances? for each identify the ·-Cf) -----Q) .g -c location and provide the information below: c. Q)
-c. Instance 1: ro .?;-
-c >. Instance 2: Q) c: en ro
:::J ..... Instance 3: Cf) 0
t::: Cf)
Q) Q)
For each instance enter value, or "yes" I "no" for: ~ u 1 2 3 :::J c: u ro Design yr. headwater WSE 1 ft. below curb top? Q) Ci.i ..... c: <C-100-yr. max. depth at street crown 2 feet or less? Q) .....
0 Product of velocity (fps) & depth at crown (ft)= ? E
..... g Is velocity limited per conditions (Table C-11 )?
Limit of down stream analysis (feet)?
Explain any "no" answers:
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 20 of 26 APPENDIX . D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTI O N IX
APPENDIX D -TECHNICAL DESIGN SUMM ARY
Part 4 -Drainage Co n ce~t a nd Desig n Pa rameters I Continued (Page 4.12)
·. ~ .• . ,.-: . ,, • . ':> " . . ., . . . -,·.,.. . ·• . ~.~t .. · .S to r m w~ter M~n a.g ement \q o n ce pt (continued)' :,.·&:~~-,2. ·~ · .. ,g .
Within O r Serving Subject Property (Phase, or Site) (c o ntinued)
All Proposed Cu lverts: For all proposed culvert facilities (except driveway/roadside
ditch intersects) provide information requested in next eight boxes.
Do culverts and travelways intersect at 90 degrees? ~Yes __ No If not,
identify location(s) and intersect angle(s), and justify the design(s):
Does drainage wa y alignment change within or near limits of culvert and surfaced
approaches thereto? _.:!._ No --Yes If "yes" identify location(s), describe
change(s), and justification:
Are flumes or conduit to discharge into cu lvert barrel(s)? _1__ No __ Yes If yes,
identify location(s) and provide justification:
-Are flumes or conduit to discharge into or near surfaced approaches to culvert ends?
"O _L No Yes If "yes" identify location(s), descri be outfall design treatment(s): a.> --::::l c: :;:::; c:
0 ~
(/)
t a.> Is scour/erosion protection provided to ensure long term stability of culvert structural > 3
() components, and surfacing at culvert ends? _1__ Yes __ No If "no" Identify
locations and provide justification(s):
Will 100-yr flow and spread of backwater be fully conta ined in street ROW, and/or
drainage easements/ ROW? _.:!._Yes --No if not, why not?
Do appreciable hydraulic effects of any culvert extend downstream or upstream to
neighboring land(s) not encompassed in subject property? _1__ No --Yes If
"yes" describe location(s) and m itigation measures:
Are all culvert designs and materials in compliance with B-CS Tech . Specifications?
_L Yes --No If not, explain in Special Desi gn Section of this Part.
STORM WATER DES IGN GUIDELINES
Effective February 20 07
Page 21of26 APPE NDIX . D: TECH. DESIGN SUMMARY
As Rev ised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage ConceQt and Design Parameters I Continued (Page 4.13)
.o•;' "' Stormwate~Management Concept (continuedf .:> -~ ~ . .• .... ,' <~t/ .. -" ......
'· ~Jiix:''1.< , . , . , Z, • ·""' .. v~ .• . • ,;: _,,, ',.,; ''
Within Or Serving Subject Property (Phase, or Site) (continued)
Is a bridge included in plans for subject property project? _L_ No --Yes
If ''y es" provide the following information.
Name(s) and functional classification of the roadway(s)?
What drainage way(s) is to be crossed? -en
Q)
Cl
"O ·;::
ClJ
A full report supporting all aspects of the proposed bridge(s) (structural, geotechnical ,
hydrologic, and hydraulic factors) must accompany this summary report. Is the report
provided? --Yes --No If "no" explain :
Is a Stormwater Provide a general description of planned techniques:
~ Pollution Prevention Construction Exits, Sediment Pond, Silt Fence, Revegetation, Rock
"'ffi Plan (SW3P) riprap and inlet protection ~ a established for .... project construction? Q)
-ro
$.: --No _L Yes
Special Designs -Non-Traditional Methods
Are any non-traditional methods (aquatic echosystems, wetland-type detention, natural stream
replication, BMPs for water quality, etc.) proposed for any aspect of subject property project?
_L_ No --Yes If "yes" list general type and location below.
Provide full report about the proposed special design(s) including rationale for use and
expected benefits. Report must substantiate that stormwater management objectives will not
be compromised, and that maintenance cost will not exceed those of traditional design
solution(s). Is report provided? --Yes --No If "n o" explain:
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 22 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Concel;!t and Design Parameters I Continued (Page 4.14)
. ·'' :<·. '. ··, · >· .. StormwaterJ\llaiiagei:nent C,onc~pt (s;ontinued) · ·' . " +'.~;:st~( ,· .. )·•:. '.i. .. -·,_,. , 'f'!. , ,.-,. . • -;o;· •\'. • •
Within Or Serving Subject Property (Phase, or Site) (continued)
Special Designs -Deviation From B-CS Technical Specifications
If any design(s) or material(s) of traditional runoff-handling facilities deviate from provisions of
B-CS Technical Specifications, check type facility(ies) and explain by specific detail element.
--Detention elements __ Drain system elements --Channel features
--Culvert features __ 'Swales --Ditches --Inlets --Outfalls
__L_ Valley gutters __ Bridges (explain in bridge report)
In table below briefly identify specific element, justification for deviation(s).
Specific Detail Element Justification for Deviation (attach additional sheets if needed)
1)
Va lley Gu tter for mid block drainage Low Flow in area of valley gutter and lack of elevation for curb inlets
2)
3)
4)
5)
Have elements been coordinated with the City Engineer or her/his designee? For each item
above provide "yes" or "no", action date, and staff name:
1)
2)
3)
4)
5)
'.;.-.";"<' " ... ':<~'. :]'-",·~1.:·: •· -,~.-~Design param~ters ,~Nc~P·" .. . .•• . ' :'I' •. . ·'2 .. ,,
I °" ' ... ·. ;; , . : . ,,,;_,, ~->.;, ·,,;~,,;.,'.'--:
Hydrology
Is a map(s) showing all Design Drainage Areas provided? --1.._ Yes --No
Briefly summarize the range of applications made of the Rational Formula:
Pipe Design, Inlet Design, Detention Pond Design and Gutter Depth Check
What is the size and location of largest Design Drainage Area to which the Rational Formula
has been applied? 6.14 acres
STORMWATER DESIGN GUIDELINES
Effective February 2007
Location (or identifier): 220
Page 23 of 26 APPENDIX. D: TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.15)
1.c :., . "•,,\ .. ·· ... _Des l~;rt P.arCimete~s (cprit} nuedf'· ;;'.,' ..•. ·.~. :J,;1;~· ~~ '';,: t~· . \i!
:-.,, :
. ~ .. ,.' .... ,,;.;· _;:
Hydrology (continued)
In making determinations for time of concentration, was segment analysis used?
No ./ Yes In approximately what percent of Design Drainage Areas? 100 %
As to intensity-duration-frequen cy and rain depth criteria for determin ing runoff flows, were any
criteria other than those provided in these Guidelines used? __!/__ No __ Yes If "yes"
identify type of data, source(s), and where applied:
'
For each of the stormwater management features listed below identify the storm return
frequencies (yea r) analyzed (or checked), and tha t used as the bas is for design .
Feature Analysis Year(s) Design Year
Storm drain syste m for arterial and collector streets NIA NIA
Storm drain system for local streets JO & JOO JO
Open channels JO & JOO JO
Swale/buried conduit combination in lieu of channel NIA NIA
Swales JO & JOO 100
Roadside ditches and culverts serving them NIA NIA
Detention facilities: spillway crest and its outfall 2, JO, 25, 50, JOO JOO
Detention facilities: outlet and conveyance structure(s) 2, JO, 25, 50, JOO JOO
Detention facilities: volume when outlet plugged JOO JOO
Culverts serving private drives or streets NIA NIA
Culverts serving pub lic roadways JOO JO
Bridges: provide in bridge report. NIA NIA
Hydraulics
What is the range of design flow velocities as outlined below?
Design flow velocities; Gutters Conduit Culverts Swales Channels
Hig hest (feet per second) --- --
Lowe.st (feet per second) - ---. -
Streets and Storm Drain Systems Provide the summary information outlined below:
Roughness coefficients used: For street gutters: O.OJ8
For conduit type(s) RCP HDPE Coefficients: 0.013 0.013
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 24 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised Augu st 2012
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.16)
' ' "" ~~'. '
''f . ' _\;. '{ • '. ' ' '~ . ~ ". • ' ' ' .,_;, ~_, .. f0'i ' :...(;:"': . '.t 'i;. . ... •' .: ,.,;>; ,; · Design Parameters ·(c.ontin~eCt)jJ; .;<•', ·.· ' ·-;' ·,;t'. ,:>'); :,c ':, ......
Hydraulics (continued)
Street and Storm Drain Systems (continued)
For the following, are assumptions other than allowable per Guidelines?
Inlet coefficients? _L No Yes Head and friction losses _L No Yes ----
Explain any "yes" answer:
In conduit is velocity generally increased in the downstream direction? _L Ye.s --No
Are elevation drops provided at inlets, manholes, and junction boxes? _L Yes --No
Explain any "no" answers :
Are hydraulic grade lines calculated and shown for design storm? _L Yes --No
For 100-year flow conditions? _L Yes --No Explain any "no" answers:
What tailwater conditions were assumed at outfall point(s) of the storm drain system? Identify
each location and explain:
Free Discharge
Open Channels If a HEC analysis is utilized , does it follow Sec Vl.F.5 .a? __ Yes __ No
Outside of straight sections , is flow regime within limits of sub-critical flow? __ Yes __ No
If "no" list locations and explain :
Culverts If plan sheets do not provide the following for each culvert, describe it here.
For each design discharge, will operation be outlet (barrel) control or inlet control?
Entrance, friction and exit losses:
Bridges Provide all in bridge report
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 25 of 26 APPENDIX. D : TECH . DESIGN SUMMARY
As Revised August 2012
SECTION IX
APPENDIX D-TECHNICAL DESIGN SUMMARY
Computer Software
What computer software has been used in the analysis and assessment of stormwater
management needs and/or the development of facility designs proposed for subject property
project? List them below, being sure to identify the software name and version , the date of the
version, any applicable patches and the publisher
Excel spreadsheets, Autodesk Civil 3D Storm Sewer A nalysis and Hydrojlow
Part 5 -Plans and Specifications
Requirements for submittal of construction drawings and specifications do not differ due to use of a
Technical Design Summary Report. See Section Ill, Paragraph C3.
Add any concluding information here: . . . . . . The storm sewer system and detention facilities are design ed in
accordance with the BCS Drainage Design Guidelines.
-Attestation
Provide attestation to the accuracy and completeness of the foregoing 6 Parts of this Technical
Desi n Summa Draina e Report b si nin and sealin below.
"This report (plan) for the drainage design of the development named in Part 8 was prepared
by me (or under my supervision) in accordance with provisions of the Bryan/College Station
Unified Drainage Design Guidelines for the owners of the property. All licenses and permits
required by any and all state and federal regulatory agencies for the proposed drainage
improvements have been issued or all under applicable general per'll...~'~lto.~\
-"""""\'C. OF ;r...:.\' (Affix Se ~"-'?--0 .,ooooo••o '-':.!' ~ti
es:t' C.J e~ Oo ~ ~
P ,l' '\,OI ~ !f* .. •o _._D,. pt;*: ~~~t l,ffoa•bob.,heti••••~c:cooeesceaooe/f '!l~T ~ JOSEPH P. SCH!Jl 17 ;,
State of Texas PE No. ~ ) e E, 1 7 .-((-/a 1JJ~:;··SSBS0S 0000-;~r$J f if, A'-•0'/:Q/ ~.-~<:?o• ~!'$'
STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 26 of 26 APPENDIX. D: TECH . DESIGN SUMMARY
As Revised August 2012
vr DEVELOPMENT REVIEW
EQUINOX SUBDIVISION PH 1 Case :
14-181
FINAL PLAT
Zoning Districts
R
E
RS
GS
R-1B
D
T
Rural
Estate
Restricted Suburban
General Suburban
Single Family Residential
Duplex
Townhouse
R-4
R-6
MHP
0
SC
GC
Cl
BP
vr DEVELOPMENT REVIEW
Multi-Farnliy
High Density Multi-Family
Manufactured Horne Park
Office
Suburban Commercial
General Commercial
Commercial-Industrial
Business Park
BPI
NAP
C-3
M-1
M-2
C-U
R&D
P-MUD
Business Park Industrial
Natural Areas Protected
Light Commercial
Light Industrial
Heavy Industrial
College and University
Research and Development
Planned Mixed-Use Develo rnent
EQUINOX SUBDIVISION PH 1 Case :
14-181
2R
POD
WPC
NG-1
NG-2
NG -3
OV
ROD
KO
1
Planned Development District
Wolf Pen Creek Dev. Corridor
Core Northgate
Transitional Northgate
Residential Northgate
Corridor Overlay
Redevelopment District
Krenek Ta Overta
FINAL PLAT
N · 1 · :i Scale: 1 Inch= 200 Feet
! /' Area : 9.221 Acres (401 ,687.50 Square Feet)
14-181
FINAL PLAT
EQUINOXPHl
BLKl LTS l-17 ;BLK2LTS 1-20;BLK3LTS l-9;BLK4LTS 1-5
ACRES 9.223
Area : 9.221 Acres (401,687.50 Square Feet)
Perimeter: 2900 .033 Feet
Gap = 0.083 (North 37° 59' 55" East)
CLOSED
7-22-2014
BR
L N47°44'50"W 871.91'
2 . N42°15'10"E 115 .00'
3. S47°44'50"E 50.50'
4. N42 °13'48"E 50.00'
5. S47°44'50"E 12 .02' 9. N42 °10'12"E 50'
6. N87 °15'10"E Ch35.36' Rad25 .00' lO . S47 °44'50"E 29.07 '
7. N42 °15'10"E 176.50' 11. N42 °15'10 "E 115.51'
8. N02 °44'50"W Ch35 .36' Rad25 .00'l12. S47 °49'48"E 461.01'
GAP error cannot be greater than 0.10 (See SOP for Exceptions)
13. s42°20·1o"W 155 .63' 17 .
14 . S47°49'48"E 159 .95'
15. N42 °2 0'10"E 5.63'
16. S47 °49'48"E 160.52'