Water Line Sizing Calculations for 4-in and 6-in Lines.pdf
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- Attached to
- Y1LB--Resolicit - 885CM3011-Pave Roads w/option to Repair Water and Stormwater Utilities, Ft Bayard NC
- Solicitation number
- 36C78622B0002
About this file
This document contains water line sizing calculations for 4-inch and 6-inch lines to support a federal contract opportunity to pave roads and repair water and stormwater utilities at Fort Bayard National Cemetery in New Mexico. The calculations analyze flow rates of 200 and 400 gallons per minute through 4-inch and 6-inch pipes with fittings including 90-degree bends, check valves, gate valves, inline filters and tees. Residual pressures of 47 psi and 84.6 psi are determined for 4-inch and 6-inch lines respectively with static head conditions of 54 feet and a water tank elevation of 6236 feet. The related federal contract opportunity is solicitation number 36C78622B0002 from the Department of Veterans Affairs National Cemetery Administration to pave roads with an option to repair water and stormwater utilities at Fort Bayard National Cemetery.
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| 36C78622B0002 0003.docx | DOCX document | |
| Fort Bayard Revised BD Plans With Amendment.pdf | ||
| 36C78622B0002 0002.docx | DOCX document | |
| Questions and Answers.docx | DOCX document | |
| S02_Attachment- _IFB Contractor Price Estimate Worksheet.xlsx | XLSX spreadsheet | |
| 21-12-10 Updated for HDPE - Ft Bayard Plans 885-011.pdf | ||
| Ft Bayard Irrigation Water Use Calculations.pdf | ||
| 36C78622B0002_1.docx | DOCX document | |
| 21-7-8 Ft Bayard Basis of Design Report.pdf | ||
| 21-6-20 Ft Bayard Hydrology Report 02.pdf | ||
| 21-12-10 Updated and Optimized - Ft Bayard Plans 885-011.pdf | ||
| P07 Bayard-Heavy.pdf | ||
| P07 BAYARD.pdf | ||
| 21-7-8 Ft Bayard Pave Roads Geotechnical Report.pdf | ||
| Updated for HDPE - Ft Bayard Specs.zip | ZIP file | |
| 21-7-8 Ft Bayard Basis of Design Report 02.pdf |
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Text version
Required minimum flow, gpm 200
Water Tank Elevation 6236.0 Water Meter Elevation 6182.0
Static head conditions:
Static Head (ft) 54.0
Static Head (psi) 124.7
Water Line Size:
Dia (in) 4
Item Qty k/ea K 90 Deg Bend 2 0.75 1.5 Check Valve 1 2 2.0 Gate Valve 2 0.2 0.4 Inline Filter 1 2 2.0 Tee Branch 2 1 2.0 Water Meter 1 3 3.0
0.0 Total 10.9
Vel, fps 5.1 Vel hd, ft 0.4 HL, ft 4.43
Straight Pipe
Length (ft) 1000 C 120 Dia. (in) 4 HL, ft. 31.59
Q V V /2g gpm ft/s ft 200 5.1 0.405
Conclusion:
4" Water Line Sizing Calculations psi 73.0
Total Headloss Total Headloss Residual Pressure psi 47.3
Headloss ft/ft
0.032 31.6 ft
A 4" water line has the capability of providing 200 gpm to the water meter at 47 psi when the water tank is at its lowest level.
Required minimum flow to cemetery 200 gpm Minimum fire hydrant flow 400 gpm Flow used for calculations 400 gpm
Water Tank Elevation 6236.0 Water Meter Elevation 6182.0
Static head conditions:
Static Head (ft) 54.0
Static Head (psi) 124.7
Water Line Size:
Dia (in) 6
Item Qty k/ea K 90 Deg Bend 2 0.75 1.5 Check Valve 1 2 2.0 Gate Valve 2 0.2 0.4 Inline Filter 1 2 2.0 Tee Branch 2 1 2.0 Water Meter 1 3 3.0
0.0 Total 10.9
Vel, fps 4.5 Vel hd, ft 0.3 HL, ft 3.50
Straight Pipe
Length (ft) 1000 C 120 Dia. (in) 6 HL, ft. 4.39
Q V V2/2g gpm ft/s ft 400 4.5 0.320
Conclusion:
A 6" water line has the capability of providing 400 gpm to the water meter at 84.6 psi when the water tank is at its lowest level. 400 gpm was used for calculations as the fire flow would be the peak usage for the water line.
ft/ft ft psi psi
0.016 15.9 36.6 84.6
6" Water Line Sizing Calculations
Headloss Total Headloss Total Headloss Residual Pressure
File details come from the government source that posted it. Updated .