HomeMy WebLinkAbout30 Development Permit 493 Schlotsky's on FM81809 /24 /97 11: 52 '5'409 846 8252 KLI~G ENGR 4 ~4 COCS VOLK /MORGAN
KLING ENGINEERING & SURVEYING
TELECOPIER COVER SHEET
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DATE ~\ 2~ 1 \(jc;>I
Please deliver the following pages to:
Name: \k'1" O~\C:-9>. t\o{""ce,o..\".
Firm: C::..\\ j o-\ (.f?\\~e. 8..o;;\j.of\
Fax Number: ~~~~~~~~~~~~~~~~~~~~~~~-
From: S\>-'-c~\<...\~
Kling Engi ring i rveying
4103 South Texas Ave .• Suite 212
Bryan, Texas 77802
Phone: (409)846-6212
Fax: (4091846-8252
We are transmitting 4: page(s). including this cover letter from our
fax number listed above. If any pages are missing or incomplete, please
contact sender .
Regarding: ~ c:..,-on\c:.R> -
14100 1
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KLING E GR _,_,._, COCS VOLK /MORGAN
09 /24/97 11 : 53 'l)'409 8!Q_~.2_5_2_
RATIONAL METHOD ANALYSIS
DETENTION ANALYSIS BY MODIFIED RATIONAL METHOD
PROGRAM INPUT DAT A:.
DESCRIPTION
January 16, 1991
Albertson's -Walmart Detention
Southwood Plaza
College Station, Texas
Stonn Frequency (years) ............................................................................................. .
Detention Basin Drainage Area (acres) ............•...............••..........................................
C Coefficient ............................................................................................................. .
Time of Concentration (minutes) ................................................................................ .
Time Interval for~ Computations (minutes) ........................................................ .
Allowable Outflow from I>ctention Basin (cfs) ........................................................... .
PROGRAM RESULTS:
Rainfall Intensity computed using Single-Frequency 1-D-F Curve.
Rainfall Intensity (Inches per hr) ................................................................................ .
Peak Inflow Rate to Detention Basin (cfs) ................................................................. .
Critical Storm Duration (minutes) ............................................................................. .
Peak Inflow Rate at Critical Duration (cfs) ................................................................ .
Inflow Volume to Detention Basin (cubic feet) .......................................................... .
Outflow from Detention Basin (cubic feet) ··············-·················· .............................. .
Maximum Storage Volume (acre-feet) ........................................................................ .
MODIFIED RATIONAL METHOD RESULTS TABLE
Storm Rainfall Peak Inflow Outflow Storage
Duration Intensity Inflow Volume Volume Volume
(min) (in/hr) (cfs) (cu.fl) {cu.fl) (cu.ft.)
30.00 6 .75 195.9 352613 324000 28613
40.00 S.69 165.2 396436 378000 18436
50.00 4.95 143.9 431605 432000 -395
60.00 4.41 128.1 461146 486000 -24854
VALUE
100.0
44.00
0.66
30.00
10.00
180
6.75
195 .9
30.00
195.9
352613
324000
0.66
Storage
Volume
(ac.ft.\
~
0.42
-0.01
-0.57
f RATIONAL ME'IHOD ANALYSIS COMPUTER PROGRAM. Version 1.1 Copyright 1987 Dodson &
} Associates, Inc., 7015 W. Tidwell, #107. Houston, TX (713) 895~8322.
The required storage volume of 0.66 acre feet is less than the available 0.89
acre feet at the 2. 75' depth.
Brothers Boulevard and a time of concentration of 15 minutes, a 100 year storm
wiff roduce a roximatel 300 cfs enteri
a mart stormsewer, 55 cfs from the a acres discharging downstream of the
outlet and 27 cfs from the 7 acres of right-of-way upstream of the outlet. If the
n
l4]002
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09 /2~/97_._. 11: 53 'a409 84~_8 _25_2 __ KLING ENGR ->->-> COCS VOLK /MORGA N
outlet channel flows 3' deep, there will be a discharge of approximately 259 cfs
from the detention pond. This produces a quantity of 341 cfs at the Brothers
Boulevard culvert and will overflow the pavement between 0.9' and 1.0' which
will not overflow Texas Avenue . Computer output of a model for this situation is
produced below.
. RATIONAL METHOD ANALYSIS
DETENTION ANALYSIS BY MODIFIED RATIONAL METHOD
PROGRAMINPtrr DATA;
DESCRIPTION
January 16, 1991
Albertson's -Walmart Detention
Southwood Plaza
College Station, Texas
Stonn Frequency {years) ............................................................................................. .
Detention Basin Drainage Area (acres) ....................................................................... .
C CoefficienL ............................................................................................................. .
Time of Concentration (minutes) ................................................................................ .
Time Interval for MRM Computations (minutes) ........................................................ .
Allowable Outflow from Detention Basin (cfs) ........................................................... .
PROGRAM RESULTS :
Rainfall Intensity computed using Single-Frequency 1-D-F Curve.
Rainfall Intensity (Inches per hr) ................................................................................ .
Peak Inflow Rate to Detention Basin (cfs} ··-········································ .. ····················
Critical Storm Duration (minutes) ............................................................................. .
Peak Inflow Rate at Critical Duration (cfs) ................................................................ .
Inflow Volume to Detention Basin (cubic feet) .......................................................... .
Outflow from Detention Basin (cubic feel) ............................................................. : .. .
Maximum Storage VolUJne (acre-feet) ......................................... ~ .............................. .
MODIFIED RATIONAL METHOD RESULTS TABLE
Storm Rainfall Peak Inflow Outflow Storage
Duration Intensity Inflow Volume Volume Volume
(min) (WJrr) (cfs) (cu.ft.) (cu.ft.) (cu.fl)
lS .00 9.73 299.8 269776 233100 36676
25.00 7.48 230.3 345460 310800 34660
35.00 6.16 189 .8 398666 388500 10Hi65
45.00 5.29 163.0 440012 466200 -26188
VALUE
100.0
44:00
0.70 @
15.00
10.00
~
9.73
299 .8
15.00
299.8
269776
233100
0.84
Storage
Volume
(ac.ft.)
0.84
0.80
0.23
-0.60
RATIONAL METIIOD ANALYSIS COMPUTER PROGRAM, Version 1.1Copyright1987 Dodson &
Associates, Inc., 7015 W. Tidwell, #107, Houston, TX (713) 895-8322 ~
10
14100 3
r
09 /24 /97 11 :54 '5'409 846 8252 KLI NG EN GR 444 CO CS VOLK /MORG AN
CONCLUSION
Results of this study show that the present detention basin in Block 15 of
Southwood Plaza is more than adequate to contain the excess stormwater from
a 100 year storm after construction of the Albertson's Center with all other parts
of the drainage basin at present conditions. When all parts of the drainage area @
are developed, the present detention basin will still detain enou h stormwater to
prevent e ove ow o exas venue. is shou d be ad~quate dunng a 100
year storm, since adjoining structures are well above this elevation. The real
estate office downstream of Brothers Boulevard has a floor elevation of 3' above
the centerline of Texas Avenue at Brothers Boulevard and the Sonic Drive-Inn
has a patio slab elevation 3.5' above the top of pavement at the detention basin
outlet.
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14100 4
ACC O UNT NO . ________________ _
399 265
,1992 '
Paid by_ Check 47 Jf"cash __ THANK YO ~ •~L,_.-v
DEVELOPMENT PERMIT
PERMIT NO. 493
SCIIl..OTZSKY'S ON FM2818
FOR AREAS OUTSIDE TIIB SPECIAL FLOOD HAZARD AREA
RE: CHAPTER 13 OF TIIB COLLEGE STATION CITY CODE
SITE LEGAL DESCRIPTION:
1.03 Acre Lot 4G, Block 15
Revised Plat of Lot 4, Block 15 Southwood Plaza Phase Two
Volume 1203, Page 143
OWNER:
Schlotzsky's Real Estate, Inc.
200 West Fourth Street
Austin, Texas 78701
512-469-7500
DRAINAGE BASIN:
Bee Creek Tributary "A"
TYPE OF DEVELOPMENT:
SITE ADDRESS:
1612 FM 2818
This permit is valid for site development as shown on the approved construction plans.
The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate
construction site in accordance with the approved erosion control plan as well as the City of College
Station Drainage Policy and Design Criteria. The Owner and/or Contractor shall assure that all disturbed
areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales
used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed
vegetation be returned to its original condition, placement and state. The Owner and/or Contractor shall
be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery
and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work.
Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced
before any operations of this permit can begin .
In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be
taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city
streets, or existing drainage facilities .
I hereby grant this permit for development of an area outside the special flood hazard area. All
development shall be in accordance with the plans and specifications submitted to and approved by the
City Engineer in the development permit application for the above named project and all of the codes and
ordinances the City o ollege Station that apply.
Date 7 7
Date
Contractor
10/1 /91
Date 1
10 /09 /97 10:33 'B409 846 8252 KLING EN GR ->->-> COCS VOLK /MO RG AN
Figure xn
Application Form
Development Permit
Inside/Outside Established Flood Hazard Areas
City of College Station, Texas
(re: Ordinance No. 1728)
~002
Site Legal Description: 1.03 Ac. Lot 4G, Block 15, Revised Plat of Lot 4, Block 15, Southwood Plaza, Phase,
Iwo, Yolume 1203, Pa~e 143.
Site Address: 1612 FM 2818, CollC,2'e Station, Texas.
Owner: Schlotzsky's Rea] Estate, Inc.
Architect/
Engineer: Kline En~ineerine & Surveying
Contractor: Christian Development
200 West Fourth Street,
Address: Austin, TX 78701
Telephone No.: (512)469-7500
4103 Texas Ave. Suite 212
Address: Bryan, TX 77802
Telephone No.: (409)846-6212
3131 Fountain View
Address: Houston, TX 77057
Telephone No.: (888)300-9633
Date Application File.d:_...O~c...,to ... h ... er~9 .... , ..... 19 ...... 9 ..... 7 ________ Approved: ___________ _
Application is hereby made for the following specific waterway alterations: __ ...,;N ..... A...._ _______ _
Attached as part of this application:
C Application Fee
0 Signed Certificate
D Sife and Construction Plans, with supporting documentation: two (2) copies of each
D Other:
~-----------------
AC KNQ WL ED GEMENT S:
I, Lairy Guthrie 1 as owner, hereby acknowledge or affirm that:
The above Drainage Plan and supporting documents complies with the requirements of Ordinance No. 1728,
and
~
-o-w_n_e_r------~---~--~--~-~Dare
Date 1
Page 1of2
10 /09 /9 7 1 0 :3 4 'B409 846 825 2 KLIN G E GR ->->-> COCS VOLK /MORG AN 14100 3
Figure XII Continued
CERTIFICATIONS:
A . I, ~ I~ certify that any nonresidential structure on or
proposed to be on this site as part of this application meets flood-proofing requirements as
set out in Section of Ordinance No. 1728
Architect/Engineer Date
B. I, ~J !\ , certify that the finished floor level of the lowest
floor, including any basement, of any residential structure as part of this application is or
proposed to be at or above the base flood elevation as established in the latest Federal
Insurance Administration flood hazard study and maps, as amended.
Architect/Engineer Date
C. I, ~ff\ , certify that the alterations or development covered
by this permit shall not diminish the flood-carrying capacity of the adjoining waterway or
crossing this permitted site and that such alterations or development are consistent with
requirements concerning encroachments of floodways and of floodway fringes as illustrated
in the latest Federal Insurance Study.
Architect/Engineer Date
D. I, ~ f A. , do certify that any alterations, addressed in
Certification "D" do not raise the level of 100-year flood as referred to Certification "B".
4?.
~~:----=:---:--~--~~~~---------Architect/Engineer Date
REVIEWED FOR APPROVAL:----=____,,......,-,.....-...,,,_.,,._...,.....,.---...,,,,,--------
Floodplain Administrator Date
APPROVAL: Special conditions or comments as pan of approval:----------
Page 2 of 2
10 /09 /97 1 0 :33 'a409 846 8 2 52 KL IN G EN GR ,,, CO CS VOLK /MORG AN
•
KLING ENGINEERING & SURVEYING
TELECOPIER COVER SHEET
IEF:faxcoverl
DATE CJc:\-. <:;) 1 \S~J
Please deliver the following pages to:
Firm: C:.\\ ~c' C o\\ec:,e. S\.+~,ni\
Fax Number: l\S> 4 -?,"\ c:J\.Q
From: ~C\.C~ \(\f\~
Kling Engining & S eying
4103 South Texas Ave., Suite 212
Bryan , Texas 77802
Phone: (409)846-6212
Fax : (409)846 -8252
We are transmitting ~ page(s), including this cover letter from our
fax number listed above. .If any pages are missing or incomplete, please
contact sender.
14100 1
KL[NG E NG[NEERING & §URVEYilNG
4103 Texas Avenu e, Suite 212
Bryan, Texas 77802
B.J. Kling, P.E., RP.L.S .
S.M. Kling, R.P.L.S.
October 7, 1997
Consulting Engineers • Land Surveyors
Telephone 409/8466212
Fax 409/846-8252
TO : Veronica Morgan P.E.
FROM: Stacy King
RE: Detention for Proposed Schlotzsky's
Post Office Box 4234
Bryan, Texas 77805
The following documents that Schlotzsky's does not need to have on site
detention. The information was taken from the "Drainage Report for Southwood
Plaza Detention Basin" prepared by Joe Orr, Inc. for the proposed Albertson's Center.
Review of Report
The report concludes that "when all parts of the drainage area are developed,
the present detention basin will still detain enough stormwater to prevent the
overflow of Texas Avenue (p.11 )". This conclusion was based on an analysis of the
detention pond using the Modified Rational Method. The assumptions made for the
analysis consisted of a time of concentration of 15 minutes (p.9) and a composite
C-value of 0. 7 (p.10). The results of the detention pond analysis for fully developed
site conditions show that the Maximum Storage Volume needed is 0.84 (acre-ft)
(p.10). The capacity of the detention pond is 0 .89 (acre -ft) (p.6).
Schlotzsky's Site
The proposed Schlotzsky's site has a C-value of 0. 74 which violates the
assumed C-value of 0. 7 made in the report. However, the capac ity of the present
detention pond, 0.89 (acre-ft), exceeds the Maximum Storage Volume needed for
fully developed conditions, 0.84 (acre-ft). Due to the extra capacity provided in the
detention pond Veronica Morgan P.E. of the City of College Station said the 0.04
increase in C-value would be acceptable, and that Schlotzsky's would not have to
detain on site.
10 / 10 /97 11: 45 'Zl'409 846 8252 KLING E GR ->+-• COCS VOLK /MORGAN
KLING ENGINEERING & SURVEYING
TELECOPIER COVER SHEET
IEF :f•xcover)
DATE._----'t ..... o"-t/.....:.....to_/q_7 ___________ _
Please deliver the following pages to:
Name: __ Pc~~-----_....~_____,_=---------
Firm:_CJ-~'-'--f'l---fto~-C£J~l/ ~~~ __..,Sfu_J,~.__...·(Y)""'---'-------
Fax Number:. ________________________ _
From: i3J.u~y Ne :Situ.y: Ki-.,,,
Kling Engineering & Surveying ~
4103 South Texas Ave., Suite 212 Phone : (409)846 -6212
Bryan, Texas 77802 Fax: (409)846-8252
We are transmitting d page(s), including this cover letter from our
fax number listed above. If any pages are missing or incomplete, please
contact sender.
Regarding : fdR.A.V }./J ili ajN .d a p.pLke g i/~ fi ~lopmwr liunJ-
~001
•
10 /10 /9 7 11: 45 '5'409 846 8252 KLING ENGR ~~~ COCS VOLK /MORGA
Figure XII
Application Form
Development Permit
Inside/Outside &tablished Flood Hazard Areas
City of College Station, Texas
(re: Ordinance No. 1728)
l4J 00 2
Site Legal Description: 1.03 Ac. Lot 4G. Block 15, Revised Plat of Lot 4, Block 15, Southwood Plaza, Phase,
Two, volume 1203, Pa~e 143.
Site Address: 1612 FM 2818, Colle~e Station, Texas,
Owner: Schlotzsky's Real Estate, Inc
ArchitecU
Engineer: Kling En~ineering & Surveying
Contractor: Christian Development
200 West Fourth Street,
Address: Austin, TX 78701
Telephone No.: (512)469-7500
4103 Texas Ave. Suite 212
Address: Bryan, TX 77802
Telephone No.: (409)846-6212
3131 Fountain View
Address: Houston, TX 77057
Telephone No.: (888)300-9633
Date Application Filed:__...Oc...._to .... b..,.er._9,.,., ....... 1 ..... 9'""'"9_._7 ________ Approved: __________ _
Application is hereby made for the following specific waterway alterations: __ """'N ...... A.._ _______ _
Attached as part of this application:
~ Application Fee
0 Signed Certificate .
D Sife and Construction Plans, with supporting documentation: two (2) copies of each
D Other: -------------------
ACKNOWLEDGEMENTS:
I, T.arzy Guthrie , as owner, hereby acknowledge or affum that:
The above Drainage Plan and supporting documents complies with the requirements of Ordinance No. 1728 ,
md ·
~
~D~e-v~el_o_p-er------------------Date
~ .... C .... o_n.,..tra_c_,t-or------------------Date
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