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Home My WebLink About16 - Design Report - Taco Bell (Catron Crossing) - Water TACO BELL - CATRON CROSSING WATER SYSTEM IMPROVEMENTS WATER MAIN EXTENSION BASIS OF DESIGN REPORT June, 2016 PREPARED BY: IL Morrison Maierle engineers f surveyors planners , scientists ��fl11144� MMI #: 4191.008 Table of Contents 1.1.1 General Information..........................................................................................3 1.1.2 Extent of Water Works System including:.........................................................3 1.1.3 Alternate Plans .................................................................................................4 1.1.4 Site Conditions.................................,................................................................4 1.1.5 Water Use Data ................................................................................................4 1.1.6 Flow requirements............................................................................................6 1.1.7 Sources of Water Supply ..................................................................................7 1.1.8 Proposed Treatment Processes..............................................................7 1.1.9 Sewage System Available.................................................................................7 1.1.10 Waste Disposal.................................................................................................7 1.1.11 Automation. ......................................................................................................7 1.1.12 Proiect Sites......................................................................................................7 1.1.13 Financing..........................................................................................................7 1.1.14 Future Extensions 8 APPENDICES Appendix A Fire Flow Calculations Prepared by: Morrison-Maierle, Inc. 2880 Technology Blvd. W. Bozeman, Montana 59771 Phone: (406)587-0721 Fax: (406)922-6702 Written By: DDK Checked By: MEE Approved By: MEE PROJECT NO.: 4191.008 2 1.1 Engineer's Report The following Design Report follows the section numbering of Circular DEQ-1- Standards for Water Works, August, 2014 Section 1.1, Engineer's Report. 1.1.1 General Information a. The planned water main extension is being designed to serve a portion of the property contained in C.O.S. 1827A. This project will extend approximately 311 feet of new 8-inch Class 51 D.I.P.water main into the proposed Taco Bell site. The new 8-inch main will tie into an existing 8-inch stub at the south-west comer of the proposed Taco Bell site, and continue to the north and capped for future expansion. Future expansion will connect this capped line and continue an 8-inch water main extension to the North to connect to an existing 12-inch main that currently bisects C.O.S. 1827 A. One fire hydrant assembly is proposed for the project. The project includes a water service to the Taco Bell facility. b. The proposed water main infrastructure will be served by the City of Bozeman. c. Project Developer: VC Development, LLC 1184 North 15t', Suite 4 Bozeman, MT 59715 d. System Owner. City of Bozeman PO Box 1230 Bozeman, Mt 59715 1.1.2 Extent of Water Works System, including; a. The proposed water main extension is an extension of the City of Bozeman water infrastructure in the area. The water main extension is proposed for the Taco Bell facility and future expansion for the remaining parcel of C.O.S. 1827A south of the existing 12-inch water main (zoned B2, community business). An existing hotel is 3 already located on the parcel (to the west of the proposed Taco Bell facility)and is served by a water service from the main located in Catamount Street. b. The project will tie into existing 8-inch Class 51 D.I.P. stub extended from the existing 8-inch main located in Catamount Street on the south side of the property. The proposed 8-inch water main extension for Taco Bell site Will capped for a future extension to service the remaining portion of C.O.S. 1827A south of the existing 12-inch water main that bisects C.O.S. 1827A. c. The proposed 8-inch water main extension will service the Taco Bell facility site and will be capped for future connection. 1.1.3 Alternate Plans The alignment of the proposed main was chosen to meet the layout of the proposed Taco Bell facility and the future needs for the remaining portion of C.O.S. 1827A south of the existing 12-inch water main that bisects C.O.S. 1827A. 1.1.4 Site Conditions a. The proposed Taco Bell facility site has existing grades of less than 4%and mostly Turner Loam soil deposits. b. The proposed Taco Bell facility site is favorable for building foundation construction. c. The ground water flows from the south to the north and is approximately 5-10 feet from the existing ground elevations (per Montana Bureau of Mines and Geology website). 1.1.5 Water Use Data The following section addresses the design capacity and flow requirements discussed in Section 8 of DEQ - 1. The proposed water main extension will serve the Taco Bell facility 4 site and the future needs remaining portion of C.O.S. 1827A south of the existing 12- inch water main that bisects G.O.S. 1827A. The capacity requirement for the water main extension is calculated as follows: Paco Bell Flows: Assumptions: Zoned B2 (per the City of Bozeman's Capital Planning) = 2,000 GAUACRE/DAY (COB Design Standards Table V-1, page 52) Taco Bell facility site is 1.58 Acres Average Daily Flow(ADF)_ (2,000 GAL./ACRE/DAY)*(1.58 ACRES) 3160 gpd= 2.19 gpm Peak Hour Daily Flow(MDF) = 3.0 x Avg. Day= 3.0*2.19 = 6.57 gpm Remaining Parcel of C.O.S. 1827A south of the existing 12-inch water main that bisects C.O.S. 1827A: Assumptions: Zoned B2 (per the City of Bozeman's Capital Planning) = 2,000 GAL./ACRE/DAY(COB Design Standards Table V 1, page 52) Remaining Parcel of C.O.S. 1827A south of Public Road 1 is 10.5 Acres Average Daily Flow(ADF)_ (2,000 GAL./ACRE/DAY)*(10.5 ACRES) =21,000 gpd = 14.58 gpm Peak Hour Daily Flow(MDF) = 3.0 x Avg. Day= 3.0*14.58 =43.74 gpm Irrigation Demands: Assumptions: 30 inches*acres/year will be used for irrigation 30% of the site will be irrigated Taco Bell facility= 1.58 acres Area to be irrigated = 1.58 acres *30% =0.47 acres 6 30 inches*acres/year*0.47 acres = 14.1 inches*acre/year 14.1 inches*acre/year= 382,849 gallons/year 382,849 gallons/year= 1049 gpd = 0.73 gpm Peak Hour Daily Flow(MDF) = 3.0 x Avg. Day = 3.0*0.73 =2.19 gpm Assumptions: 30 inches*acres/year will be used for irrigation 30% of the site will be irrigation Remaining Parcel of C.O.S. 1827A south of the 12-inch water main that bisects C.O.S. 1827A= 10.5 acres , Area to be irrigated = 10.5 acres * 30% = 3.15 acres 30 inches*acres/year* 3.15 acres = 94.5 inches*acre/year 94.5 inches*acre/year=2,565,902 gallons/year 2,565,902 gallons/year= 7,030 gpd =4.88 gpm Peak Hour Daily Flow(MDF) = 3.0 x Avg. Day= 3.0*4.88 = 14.64 gpm Total Peak Flour Flow=6.57 gpm+43.74 gpm+2.19 gpm + 14.64 gpm = 67.14 9Rm 1.1.6 Flow requirements a. Average Daily Flow: 22.38 gpm Maximum Daily Flow: 67.14 gpm Minimum Working Pressure: 35 psi Minimum Pressure for Fire Flow: 20 psi b. Fire flows are based on the City of Bozeman Fire Department requirements for this commercial development of 1,500 gpm for a 2- hour duration. Attachment A calculations show that there will be sufficient pressure for fire flow. i 6 Per the City of Bozeman Water Facility Plan 2006, a fire hydrant located less than 600 feet to the north of the proposed fire hydrant has a max day pressure of 9246 gpm at a residual pressure of 20 PSI. 1.1.7 Sources of Water Supply Water is supplied from City of Bozeman. 1.1.8 Proposed Treatment Processes: Non-applicable. 1.1.9 Sewage System Available The area is served by the City of Bozeman wastewater treatment facility 1.1.10 Waste Disposal Non-applicable. 1.1.11 Automation Non-applicable. 1.1.12 Project Sites a. The project site has been zoned B-2 by the City of Bozeman. b. The project site has been zoned B-2 by the City of Bozeman. The existing site is bound by Catamount Street to the South and East Valley Center Road to the East and an access road to the west, and an undeveloped field to the North. c. The wastewater at the site will be conveyed to the City of Bozeman wastewater treatment facility. 1.1.13 Financing Non-applicable. i 7 1.1.14 Future Extensions A future 8-inch water main extension will connect to the capped 8-inch main line and will serve remaining portion of C.O.S. 1827A south of the existing 12-inch water main that bisects C.O.S. 1827A. N:\4191\008\Design Docs\Reports\Water Design Report\Taco Bell Water Extension Eng Report FINAL.docx 8 y Taco Bell ,fw De;l ph tion Friction Method Hazen-Williams Formula Solve For Pressure at 2 Pressure 1 100.00 psi Elevation 1 0.00 ft Elevation 2 0.00 ft Length 311.00 ft Roughness Coefficient 130.000 Diameter 8.00 in Discharge 1567,00 gal/min Pressure 2 94,34 psi Headloss 13.06 ft Energy Grade 1 232.21 ft Energy Grade 2 219.16 ft Hydraulic Grade 1 230.66 ft Hydraulic Grade 2 217.60 it Flow Area 0.35 ft2 Wetted Perimeter 2,09 ft Velocity 10.00 ft/s Velocity Head 1.55 ft Friction Slope 0.04198 ftf t Bentley Systems,Inc. 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