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HomeMy WebLinkAboutFire Flow Report , 1= H Windrose Land Services, Inc 10675 Richmond Ave,Bldg 7 i #< '' Houston, Texas 77042 j'. E" , Phone(713)458-2281 Fax(713)461-1151 .,,--77 Professional Surveying & Engineering Services ..0- July July 26, 2005 Mr. Josh Norton City of College Station -Department of Public Works 1101 Texas Ave. College Station, Texas 77884 Phone:(979) 764-3570 Re: Cost Estimate for Fire Hydrant at Holleman Retail Center Dear Mr. Norton, The cost estimate for proposed utilities to be turned over to public works is as follows: QUANTITY UNIT DESCRIPTION UNIT COST TOTAL COST 1 EA. FIRE HYDRANT(PER C.O.C.S. DETAIL) $2,000.00 $2,000.00 60 LF. 6"C-909 WATER LINE(FIRE LINE) $12.00 $720.00 22 LF. 8"C-909 WATERLINE (FIRE LINE) $14.00 $308.00 1 EA. 8"GATE VALVE $800.00 $800.00 1 EA. 8"X8"x8"TEE $400.00 $400.00 1 EA. 8"x6"x6"TEE $400.00 $400.00 1 EA. 6"x6"x2"TEE $400.00 $400.00 1 EA. 12"x12"x8"TEE $400.00 $400.00 1 EA. 12"GATE VALVE $1,200.00 $1,200.00 GRAND TOTAL $6,628.00 ---°' 9.f. i fpi- ...4.- 411 ----';4'�'*a lt � lt/N t r JOHN D. GERDES -r Sincerely, �j .o` 88497 r'e r /C . k.' N X %.%. John D. Gerdes, P.E. & ? ---2/ `Of- Director of Engineering (9 Y:\Projects\36470-Pooh's Park\Engineering-EN\Communication\Cost Estimatet_ah_072605.doc H Windrose Land Services, Inc J 10675 Richmond Ave, Bldg 7 Houston, Texas 77042 Phone(713)458-2281 Fax(713)461-1151 Professional Surveying & Engineering Services s June 2, 2005 Ms. Carol Cotter Development Services City of College Station RE: Fire Flow of Analysis for WLS Project: Texas and Holleman WLS Project #: 36470E Dear Mrs. Cotter: This letter summarizes and details the design of the fire hydrants for the above referenced project. The existing 18"water line will be utilized to service the fire hydrants. The fire hydrants will service both the proposed Bank and Texas Pavilion. The water line was evaluated for this condition. Please see accompanying plan sheet for construction details. The fire hydrant shall be in accordance with the City of College Station standards. The criteria used for analyzing the proposed water line came from the TCEQ, Chapter 209 Public Drinking Water Rules and Regulations, the Bryan/College Station Unified Design Guidelines, and information obtained from the City of College Station Public Utilities Department. The following items were analyzed as part of this summary: 1. Line Size Requirements: a. Based on TCEQ, 290.44© minimum size is 2"0 b. Based on B/CS Unified Guidelines, minimum size is 6"0 2. Pressure Requirements: a. Per TCEQ 290.44(d), 35 psi and flow rate of 1.5 gpm per connection b. If fire-fighting capabilities are required, 20-psi minimum combined fire flow and water service capabilities. 3. Fire Flow Requirements: a. Per City requirements, the required Fire Flow capabilities are based on the International Building Code (IBC) that takes into account the type of building construction and building square footage (Appendix B). N Windrose Land Services, Inc 10675 Richmond Ave, Bldg 7 i �'' " q Houston, Texas 77042 J# ` �) Phone(713)458-2281 Fax(713)461-1151 Professional Surveying & Engineering Services s Table 1 illustrates the data used for determining the required fire flow requirements per the IBC. Table 1 Type of Building Area Fire Flow Req. Req. Flow Construction (sq. ft.) (gpm) Duration (hrs) IIB 16,000 2750 2 Based of Fire Flow tests provided by College Station Utilities, each proposed fire hydrant will produce 1,350 gpm. Using 2 fire hydrants, 2,700 gal/min/building will be produced. There is an additional fire hydrant within 300 feet,which is also capable of producing similar Fire Flow rates. All fire hydrants are located within the required 300 feet. Table 2 illustrates the performance of the proposed water line with the required fire flow requirements and shows that the proposed velocities will be within City requirements. Table 2 Average Pressure Pipe Dia. Flow Rate Velocity (psi) (in) (gpm) (fps) 96 8 1350 8.6 Assume 90* 8 1350 8.6 102 18 1350 1.7 Table 3 illustrates the normal water demands imposed. Table 3 Type of Normal Water Adjusted Peak Hourly Meter Velocity Meter Demand Daily Flow Flow Size (gpd) (gpd) (gpd) (in) (fps) 3/4" (Typ.) 125 187.5 562.5 3/4 0.28 3/4" (Pot. Rest) 300 450 1350 3/4 0.68 The water demands for 6 meters are typical retail usage. If in the event a restaurant is put in place, 2 water meters are capable of splitting the 600 gallons of adjusted daily flow. If water demand of the proposed restaurant exceeds 600 gpd,then a new meter with capacity will need to be installed. H Windrose Land Services, Inc 10675 Richmond Ave, Bldg 7 i A'< ��..- Houston, Texas 77042 11. ---- 0-2 --.6"` ) Phone(713)458-2281 Fax(713)461-1151 _ Professional Surveying & Engineering Services s Please call if you have any questions. Respectfully, �, .„%%. a r�ttt Windrose Land Services '3"'( •••»•...E.#' it r 0.-1..."••••.. JOHN D. GERD.Ft,, .0, ohn D. Gerdes, P.E. 1.........................r Director of Engineering 0.11-04;;;;:e....4.. 4 8897 •:••y4 t'ti Attachment: COCS Fire Flow Test 06 02-=c) J * No Flow Test Report has been generated for this fire hydrant,simil conditions were assumed to perform the required analysis. Carol Cotter-Third hydrant for Holleman Retail Page 1 From: Jerry Duffey To: Carol Cotter Date: 6/16/2005 9:20:52 AM Subject: Third hydrant for Holleman Retail Howdy Carol, I spoke with Eric Hurt and he said that we can count that hydrant as the third one to help with the fire flow requirement. Thanks, Duff