Hydrograph Method Peak Discharge Calculator
Estimate the peak discharge from a rainfall event using a simplified triangular hydrograph method.
Runoff Volume: \( V = R \times A \times 27878.4 \) (ft³)
Peak Discharge: \( Q_p = \frac{2V}{T} \) (ft³/s)
* Enter the watershed area (acres), rainfall excess (inches), and runoff duration (hours).
Step 1: Enter Parameters
Example: 50 acres
Example: 1 inch
Example: 3 hours
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