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Is a forebay an interconnecting pond situation?

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JSiteDznr

Civil/Environmental
Nov 12, 2018
18
Attached is a hydrocad file showing runoff discharging into a forebay, overflowing via a weir into an infiltration basin. I am trying to work out numerous oscillations and after reading the interconnecting pond section of hydrocad, it seems like this may be a good fit. The "two ponds" would be equal in most storm events, but probably not in very low flow events. Is this a good fit, or is something else causing my tailwater issue?

Thank you so much!
 
 https://files.engineering.com/getfile.aspx?folder=375e37a6-9229-4de9-a809-a8d42855ab6e&file=POST_(Cv-Fv).hcp
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The forebay 10P and infiltration basin 8P look pretty good. Yes, there is a tailwater effect which is being handled by the tailwater-sensitive DSI routing procedure. To compare the WSE vs time in the two ponds, select BOTH ponds at once, select View/Comparison Report, and then select the elevation curve.

Peter Smart
HydroCAD Software
 
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