spillway weir with bridge - defining outlet structure

[WaterMagna]

I am modeling a pond, and my outlet structure is an inline weir, but it has a bridge across the top. Should this be done with a custom weir defining the rectangular opening and use the weir coefficient for the broad crested weir? Not sure if there is a more appropriate way to define this in HydroCAD?

 

[psmart]

The easiest solution would simply be a rectangular orifice.


Peter Smart
HydroCAD Software

http://www.hydrocad.net