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Calculate Headwater For Culvert Under Outlet Control:
 
Calculation:
Designer/Checker:
 
Input:
 

 
Distance from outlet invert to control elevation or tailwater depth (ho - ft or m)
Culvert head at full flow (H - ft or m)
Slope of culvert (So - ft/ft or m/m)
Length of culvert barrel (L - ft or m))
   
     
   
   
Output:  
 
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Headwater, HW =
 
 
 
 
 



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