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Home My WebLink About18 DP Liberty 05-38CITY OF COLLEGE STATION Plann ing & Development &rvica SITE LEGAL DESCRIPTION: Liberty Subdivision Lot 2B and Lot 2C DATE OF ISSUE: 08/05/05 OWNER: Salim Ismail 1203 University Srive Colleg Station , Texas 77845 TYPE OF DEVELOPMENT: SPECIAL CONDITIONS: DEVELOPMENT PERMIT PERMIT NO. 05-38 FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE ADDRESS: 2500 Earl Rudder Freeway S DRAINAGE BASIN: Wolf Pen Creek VALID FOR 9 MONTHS CONTRACTOR: Full Development Permit All construction must be in compliance with the approved construction plans All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with Section 7.5.E., Landscape/Streetscape Plan Requirements 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 . ****TCEQ PHASE II RUELS IN EFFECT**** 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. If it is determined the prescribed erosion control measures are ineffective to retain all sediment onsite, it is the contractors responsibility to implement measures that will meet City, State and Federal requirements . 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. 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 facil iti es . 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 of the City of College Station that apply. Date r:s ---r o ,.. o r Date ' Date Submitted CITY OF COL LEGE STATION D D Pl1111 ning r7 Dfl velopm ent SertJitet DEVELOPMENT PERMIT MINIMUM SUBMITTAL REQUIREMENTS $200 development perm it fee. $600 .00 Public Infrastructure Inspection Fee if applicable. (This fee is payable if construct ion of a public waterline , sewerline , sidewalk, street or drainage facilities is involved .) Drainage and erosion control plan , with supporting Drainage Report two (2) copies each Notice of Intent (N .0.1.) if disturbed area is greater than 5 acres Date of *Required Preapplication Conference: __________________ _ *(Required for areas of special flood hazard) LEGAL DESCRIPTION L-ol 2.f? e LoT zc:. . ~lf>~ef'( SuS~\\l\S\~. cs. Ti----, . I , APPLICANT'S INFORMATION (Pr imary Contact for the Project): :=~~A~~! ,;:~u~~~~ E-Mail City e .. c;z t State _"Li_.__,,,.tb'-'----Zip Code =::t-1:--HS: Phone Number :.\=f.ok '114 .3 Fax Number ~4:-·=:3-"'.:J 9f PROPERTY OWNER 'S INFORMATION : \ Name -SAL\1-1\ \? t-A-A\L-E-Mail ~~"'1'AIL(OC~ e+\-n~D-\ ·. StreetAddress~\~~~~~~~~~~~~~~~~!\~~~~~~~~~~~----------~ ~ City L. ,.:::; State -r><.. Phone Number 9'1C\ -S1 'f-'6rDI Zip Code ']1 ~~ .J Fax Number gr-iq-aGO ,.. ~/ 09,, ARCHITECT OR ENGINEER'S INFORMATION: Name ~o~ S~1J1. .. r z:... /rE%CfJN Street Address------------------------------ City State_______ Zip Code _______ _ Phone Number -::\-4' 4=3'143 Fax Number :3(et{' ::r1-5 'f Application is hereby made for the following development specific site/waterway alterations : ACKN OWLED ~MENTS : ~At.IN>. \SM"\T.;: ~.._ ~. {;!esign engineer~ereby acknowledge or affirm that: The information and concl u_sions contained in the above f'lans and supporting documents comply with the current re u· 't of College Station , T If Code, Chapter 13 and its associated Drainage P · and Property Owner(s) 6/13/03 1 of2 ". •'. \ ) ( As a condition of approval of this permit application, I agree to construct the improvements proposed in this application according to these documents and the requirements of Chapter 13 of the College Station City Code Contractor CERTIFICATIONS: A. I, __ , certify that any nonresidential structure on or proposed to be on this site as part of this application is designated to prevent damage to the structure or its contents as a result of flooding from the 100-year storm . Engineer Date B. I, __ , certify that the finished floor elevation of the lowest floor , including any basement, of any residential structure, proposed as part of this application is at or above the base flood elevation established in the latest Federal Insurance Administration Flood Hazard Study and maps , as amended. Engineer Date C . I, __ , certify that the alterations or development covered by this permit shall not diminish the flood- carrying capacity of the waterway adjoining or crossing this permitted site and that such alterations or development are consistent with requirements of the City of College Station City Code, Chapter 13 concerning encroachments of floodways and of fl oodways fringes. Engineer Date D. I, __ , do certify that the proposed alterations do not raise the level of the 100 year flood above elevation established in the latest Federal Insurance Administration Flood Hazard Study . Engineer Date Conditions or comments as part of approval: ------------------------ 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 . 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 shal I apply. 6/13/03 2 of 2 Date: To: From: Sub ject: Remarks: TEX, CON TRANSMITTAL Ju ly 15 , 2005 Caro l Cotter Development Services City of College Station Joe Schultz, P .E. ~ Texcon General C{?;tractors 1707 Graham Road Co llege Station, Texas 77845 Phone: (979) 764-7743 Sanitary Sewer Construction Drawings Liberty Subdivision Re-Plat Co llege Station, Texas Attached are 2 sets of the Construction Drawings for the above-mentioned project, 2 copies of the Engineer's Construction Cost Estimate, and 2 copies of the Sanitary Sewer Design R eport. The sewer line is n ecessary in order for Lot 2 to be platted as 3 separate lots . Additional easements will need to be added to the Re-Plat for the sewer line. Also , due to the shallow depth of the sewer lin e, minimum finish floor ele vati ons need to b e shown on th e plat so that the buildings constructed on the lots wi ll drain to the sewer line. This infonnation has also been transmitted to KelT Surveying, LLC to include on the Re-Plat. Let me know if you need anyth in g else or have any questions. ~ 2,'CO /-/)_;OS- 0 )-\Id-- CONSTRUCTION COST ESTIMATE 15-Jul-05 SANITARY SEWER IMPROVEMENTS LIBERTY SUBD IV ISION COLLEGE STATION, TEXAS Item Estimated Unit Estimated No. Description Quantity Price Cost 1 Mobilization/Layout 1 LS $1 ,200 .00 $1,200 2 Site Preparation/Clearing 1 LS $1 ,000 .00 $1,000 3 Silt Fence 410 LF $2 .75 $1, 128 4 8" Ductile Iron Pipe -cement sand backfill 412 LF $27.50 $11,330 5 Manholes < 6' deep 2 EA $1,850 .00 $3,700 6 Connect to existing manhole 1 EA $650 .00 $650 7 Install end seals for casing 4 EA $100 .00 $400 8 Install casing s pacers 11 EA $100.00 $1, 100 9 TV Inspection 412 LF $3.50 $1,442 TO TAL $21,950 Design Report Proposed Sanitary Sewer Line Improvements for Liberty Subdivision College Station, Texas July 2005 Prepared By: TEXCON General Contractors 1707 Graham Road College Station, Texas 77845 (979) 764-7743 1.0 LNTRODUCTION & DESCRIPTION The purpose of this report is to provide a description of the proposed san itary sewer to be construct ed with the Liberty Subdivision for Lots 2A, 2B & 2C, and to provide the criteria used in the design of this sanitary sewer system. The project wi ll include the construction of approximately 412 feet of sanitary sewer line. This line and the existing lin e wi ll service the proposed development of the four commercial lots making up the Libe1iy Subdivision. 2.0 SANITARY SEWER-Design Flow and Pipe Size Calculations The proposed sewer line is to be constructed of 8" diameter ductile iron pipe, class 350. The proposed manholes are 4' diameter manholes, and vary from 3' to 6' in depth, with sewer line slopes of 0.4%. The maximum distance between manholes is less than 500 feet, as required by the Texas Commission on Environmental Quality (TCEQ). The minimum allowable slopes for 8" pipe per TCEQ requirements is 0.33%. All construction shall meet the current City of College Station Standard Specifications for Sanitary Sewer Construction. The sewer line information is summarized in Table 1. 3.0 DETERMINATION OF PEAK FLOW VALUES The average daily flow for Lots 2A, 2B & 2C was determined by using 30 persons per acre (rate for commercial land use from B/CS Unified Design Guidelines, Sewer Design, pg. 4), and then multiplying this by an average daily flow of 50 gprn/person (pg. 11, Table III, Commercial/Office). The peak flow was then determined by multiplying the average daily flow by 4.0. For Lot 1, a peak flow of 183 gpm was obtained from calculations performed with the Holiday Inn development. The ve locities for the lines were calculated using Manning's Equation. According to the TCEQ, the minimum velocity for sewer systems flowing full is 2.0 feet per second. As shown in Table 1, the minimum anticipated flow velocities for the proposed sewer lines at 50% full meet this requirement. The flow for 100% full will not be less than the flow for 50% full; therefore, the TCEQ requirement is met. The TCEQ requires that the maximum velocity for sewer systems flow full not exceed 10 feet per second. The values in Table 1 are well below this maximum velocity. 4.0 CONCLUSIONS It is our determination based on the criteria and data developed that the proposed sewer line will provide sufficient capacity for the anticipated wastewater flows generated by the development of these four commercial lots. Table 1 Liberty Subdivision -Sewer Line Flow Data 0 Manhole Averag e z Size length Slope Peak Flow Cll Number Daily Flow c: ::i From To (in) (ft) (%) (gpm) (cfs) (cfs) 3 2 8 6 1.1 0.40 3.90 0.008 7 0 .0348 ·-----------------------··---~ -·----- ";-2 1 8 351.2 0.40 1.70 0.0038 0.01 52 ---------------·-------------------en 8 173.4 0.40 2 .50 0 .00 56 0 .0223 1 Existing ·------------ From Holi da y Inn site • 0.407 7 •Peak Flo w obtain ed from Holiday Inn proj ect ca lcul ations . (183 gpm = 0 .40 77 cfs) n = 0 .0 13 Refer to construction drawing s for manhole lo cation s . Cu m ulativ e Percent 50 % Full Pea k Flow Full Flow Veloc ity (cfs) (%) (cfs) (fps) 0 .0348 14 .5 0 .3821 2.2 ----·-----------· 0.049 9 17 .3 0 .382 1 2.2 ----·-------- 0 .0722 20 .8 0 .3821 2.2 ---------·-- 0.4799 57 .4 -- N/F STEPHEN A. MADISON AND DIANE KAY MOMOO A-MADISDN. TRUSTEES 9.143 ACRE TRACT VOL. 3783, PG. 113 (2261/29) ZONED C-1 VI I "' VI I "' "' I "' Sta. 1+71 .73 Existing MH No. 1 LOT2B BLOCK l MIN. FF=2 83.50 HOLI DA Y INN FF-285.00 16,755 SF BL O CK l, LO T 1 2.763 AC RES I r __________________ J --~::---;----;--9 -hl 9-_,. I ------------------------1 I I I SEWER LINE S-1 I SCALE : 111 =60 1 ~··-··- ---e-.11· I· -- -•(r r--/~ I v~ I , . a.....__, . r------------------ 1 I I I I I I I I LO T2C BLO CK l MIN . FF =285.0C I Sta . 5+26.91 I Proposed MH No. 2 Sta. 5 +92 .00 Proposed MH No . 3 LOT2A BLOCK 1 MIN. FF=285.00 EXHIBIT A , Design Report Proposed Sanitary Sewer Line Improvements for Liberty Subdivision College Station, Texas July 2005 Prepared By: TEXCON General Contractors 1707 Graham Road College Station, Texas 77845 (979) 764-7743 _ .... "t:>.,,,,, ---'\ E. OF -,. \l ; co"'-'!>-••••••••••• ~-t-'• r .. ·· *· ... ..,IP•• , * • . , '-*: ·.* ~·············· ~ * ~ l JOSE PH ·;;··s•t .... ·······'I. l~· ............. : •••• H~ULTZ If . v. .... .. \~ 658~ I f ~ ·f.o ~~· . .. .,, . .., NAL €.~~ '~- 7,.15-fJS 1.0 INTRODUCTION & DESCRlPTION The purpose of this report is to provide a description of the proposed sanitary se wer to be constructed with the Liberty Subdivision for Lots 2A, 2B & 2C, and to provid e th e crit e ria used in the design of this sanitary sewer system . The project will include the construction of approximately 412 feet of sanitary sewer line. This line and the existing lin e will service the proposed development of the four commercial lots making up the Liberty Subdivision. 2.0 SANITARY SEWER -Design Flow and Pipe Size Calculations The proposed sewer line is to be constructed of 8" diameter ductile iron pipe, class 350 . The proposed manholes are 4' diameter manholes, and vary from 3' to 6' in depth, with sewer line slopes of 0.4%. The maximum distance between manholes is less than 500 feet , as required by the Texas Commission on Environmental Quality (TCEQ). The minimum allowable slopes for 8" pipe per TCEQ requirements is 0 .33%. All construction shall meet the current City of College Station Standard Specifications for Sanitary Sewer Construction. The sewer line infom1ation is summarized in Table 1. 3.0 DETERMINATION OF PEAK FLOW VALUES The average daily flow for Lots 2A, 2B & 2C was determined by using 30 persons per acre (rate for commercial land use from B/CS Unified Design Guidelines, Sewer Design, pg. 4), and then multiplying this by an average daily flow of 50 gpm/person (pg. 11 , Table III , Commercial/Office). The peak flow was then determined by multiplying the average daily flow by 4.0. For Lot 1, a peak flow of 183 gpm was obtained from calculations performed with the Holiday Inn development. The velocities for the lines were calculated using Manning's Equation. According to the TCEQ, the minimum velocity for sewer systems flowing full is 2.0 feet per second. As shown in Table 1, the minimum anticipated flow velocities for the proposed sewer lines at 50% full meet this requirement. The flow for 100% full will not be less than the flow for 50% full ; therefore, the TCEQ requirement is met. The TCEQ requires that the maximum velocity for sewer systems flow full not exceed 10 feet per second. The values in Table 1 are well below this maximum velocity . 4.0 CONCLUSIONS It is our determination based on the criteria and data developed that the propos ed sewer line will provide sufficient capacity for the anticipated wastewater flows generated by the development of these four commercial lots . Table 1 Liberty Subdivision -Sewer Line Flow Data 0 z Size Length Slope Average p eak Flow ..- ' en 3 2 2 8 61 .1 0.40 3.90 0.0087 -·---------- 8 351 .2 0.40 1.70 0 .0038 -------· -----·----------- 8 173.4 0.40 2 .50 0 .0056 Existing -- From Holiday Inn site •Peak Flow obtained from Holiday Inn project calculations . (183 gpm = n = 0 .013 Refer to construction drawings for manhole locations . (cfs) 0.0348 0.0152 - 0.0 223 • 0.4077 0.4077 els) - Cumulative Percent 50% Full Peak Flow Full Flow Veloc ity (cfs) (%) (cfs) (fps) 0 .0348 14 .5 0 .3 821 2.2 -------- 0.0499 17 .3 0 .382 1 2 .2 -·----.. 0 .0722 20 .8 0 .3 821 2 .2 -------- 0.4799 57.4 -- 11 I I! li ~i 1, -I I i N/F STEPHEN A. MADISON AND DIANE KAY MOMODA-MAOISON , TRUSTEES 9.143 ACRE TRACT VOL. 3783, PG . 113 (2261/29) ZONED C-1 I I "'I ~I I I I I "'I ~I I I I I "'I ~I I I Sta. 1+ 71. 73 Exist i ng MH Na. 1 LOT2B BLOCK 1 MIN . FF=2 83.50 HOLIDAY INN FF-285.00 16 ,755 SF BLOCK I , LOT I 2.763 AC RES I ,------------------J I I I n e-1': -- ----,(?::; r--- 1\/! i ./ a___, . '----,------------------ ' I I I I I I I I I Sta. 5+26.91 I Proposed MH No. 2 LOT2C BLOCK l MIN. FF=285.00 ---s-8 ---'-1-~--"""""J...di -----------------I ---S-8 ---S-8 -----1 I SEWER LINE S-1 I 11 I I I I I l' I SCALE : 1 "=60' I EXISTING DRJVEW A. ~· --. ..:- -1----------------------------=-::::·_ ::-::-:::- Sta. 5+92.00 Proposed MH Na . 3 LOT2A BL OC K 1 MIN . FF=285.0 0 EXHIBIT A