Reference
Units: U.S. Customary SI Units (Metric) [U.S. units] (SI units)
Discharge Q [cfs] (m3/s):
Inlet invert elevation z1 [ft] (m):
Manning's n:
Bottom slope So:
Tailwater depth above outlet invert y2 [ft] (m):
Culvert length L [ft] (m):
Shoulder elevation Es [ft] (m):
Freeboard Fb [ft] (m):
Entrance loss coefficient Ke : 1.0 0.5 0.12 0.03
Exit loss coefficient KE : 1.00 0.92 0.72 0.42 0.16
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