A truly better DesignXLS incorporates the U.S. Army Corps of Engineers' revised coefficients (CSCW 1977 data). It includes conditionals:
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An ogee spillway features an S-shaped (or ogee) profile. The top curve mirrors the natural underside of a water sheet flowing over a sharp-crested weir. This specific geometry ensures that flowing water remains in constant contact with the concrete structure. Why the Shape Matters Eliminates negative pressure zones. A truly better DesignXLS incorporates the U
For gated spillways, the complexity increases further. require treating flow as orifice flow, with its own parabolic trajectory calculations. Full head conditions demand still more computations. This link or copies made by others cannot be deleted
