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| Calculations Watershed Area The one (1) inch design storm watershed area includes the surrounding area as well as the contours 91 and above to the street. Square Feet x One Twelfth (1/12) Foot = Cubic Feet 10230 Sq Ft x 1/12 Foot = 852.5 Cubic Ft Cubic Feet ÷ Twenty-seven (27) = Cubic Yards 852.5 Cubic Ft ÷ 27 = 31.5 Cubic Yards Cubic Yards x Two Hundred Two (202) = Gallons 31.5 Cubic Yards x 202 = 6378 Gallons Watershed Area = 6378 Gallons in a 1” Design Storm Rain Grove (BMP) Capacity Square Feet x One (1) Foot = Cubic Feet 511.5 Sq Ft x 1 FT = 511.5 Cubic Feet Cubic Feet ÷ Twenty-seven (27) = Cubic Yards 511.5 Cubic Ft ÷ 27 = 19 Cubic Yards Cubic Yards x Two Hundred Two (202) = Gallons 19 Cubic Yards x 202 = 3826 Gallons Rain Grove Capacity = 3826 Gallons BMP Capacity ÷ Watershed Area = BMP Percentage 3826 ÷ 6378 = 60% BMP Capacity for 1” Design Storm 1” BMP storm capacity Gal ÷ 1” storm total property Gal = 3826 ÷ 40736 = 9% BMP Management Factor |
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Buck Abbey |
309 Design Building |
Baton Rouge, LA 70803 |
(O) 225.578.1475 |
(F) 225.578.1445 |