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Calculate Flow (Q) For Curb Inlet (Sump or No Sump) For D > 1.4 x Opening Height:
 
Calculation:
Designer/Checker:
 
Input:
 

 
Head on the inlet, (H - ft or m)
H = curb flow depth - opening height/2  
Area of curb opening (A - sf or sm)
   
   

     
   
   
Output:  
 
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Flow, Q =
   
 
 
 



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