Dam Spillway Design
Calculate spillway discharge capacity using the weir equation. Determine flow rate, approach velocity, and energy dissipation for dam spillway design.
Inputs
Results
Spillway Discharge
67.61 m³/s
Discharge (Imperial)
2,387.48 cfs
How to Use This Calculator
- Enter Weir/Spillway Length, Head Over Crest, and Discharge Coefficient (Cd).
- Review Spillway Discharge (m³/s) and Discharge (Imperial) (cfs).
- Use Daily Discharge (ML/day) and Approach Velocity (m/s) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
Formula
Q = Cd × L × H^(3/2)Related Calculators
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