Storm/Flood Engineering
Storm/Flood Engineering
(OP)
I have been asked to calculate the 100-year headwater pool elevation at a parking lot sag inlet. Does anyone have any tips?
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RE: Storm/Flood Engineering
For weir flow, depth = [Qt/(Cw*P)]^(2/3), ft
P=perimeter of grate, I use 3.0 for Cw
For orifice flow, depth = [Qt/(Co*A*2g)]^(1/0.5), ft
A=effective flow area of grate, I use 0.67 for Co
RE: Storm/Flood Engineering