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Calculate Length of Slotted Drain Required, Flow Depth > 0.18 feet:
 
Calculation:
Designer/Checker:
 
Input:
 

 
 
Depth of flow (d - in or mm)
Discharge (Q - cfs or cms)
Width of slot, typically 0.146 ft (w - ft or m)
   

     
   
   
Output:  
 
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Lenghth, L =
   
 
 
 



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