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Calculate Stormwater Runoff (Q) By SCS Curve Number Method:
*Referencing TR-55, this calculation is to be used for calculating the stormwater runoff (Q) using the SCS curve number method.
 
Calculation:
Designer/Checker:
   
Input:  
   
   
 
Rainfall (P - in or mm)
SCS curve number (CN)

 
   
 
Output:
 
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Runoff, Q* =
 
 
 
 
 




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