Discharge (\( q = 0.55 \cdot C \cdot L \cdot h^{3/2} \)):

Where:

• \( q \) is the discharge, in cubic meters per second (m³/s).
• \( C \) is the weir coefficient.
• \( L \) is the weir length, in meters (m).
• \( h \) is the depth of flow over the crest, in meters (m).