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Calculate the Unit Peak Discharge and the SCS Unit Hydrograph:
*Referencing the FHWA Highway Hydrology Manual, calculate the SCS unit hydrograph for a watershed.
 
Calculation:
Designer/Checker:
   
Input:  
   
   
For Metric, all input units are converted for the calculation below then converted back for the output results. 
 
Enter the time of concentration (tc - hr)
Drainage basin area (A - sq mi or sq km)
Enter the peaking constant (Kp)

 
   
 
Output:
 
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Time to peak, tp =
Unit peak discharge, qp =
   
 
 
 
 



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