Width of channel 6.5 feet
Depth of channel 1.75 feet
Speed of flow 3 mph
/ 11.375 cubic feet of water per linear foot of flow at 6.5 x 1.75
/ 5280 feet per mile
/ 15,840 linear feet of flow per hour
/ 180,180 cubic feet of inflow per hour

Duration of flow per heavy rain event
1st hour @ 100% = 180,180 cubic feet
2nd hour @ 80% = 144,144 cubic feet
3rd hour @ 60% = 108,108 cubic feet
4th hour @ 40% = 72,072 cubic feet
5th hour @ 20% = 36,036 cubic feet
next 15 hours @ 5% = 135,135 cubic feet

Totals
Total Cubic Feet per heavy rain 675,675 / / Cubic feet per acre foot 43,559.9
Total Acre Feet per heavy rain 15.51 / / Gallons per acre foot 325,851.0
Total Gallons per heavy rain 5,054,404.96 / / Gallons per cubic foot 7.48052
Maximum Flow Rate 1,347,840.09 GPH

Last edited by Daryl200; 04/10/16 09:54 PM.