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How do you represent a headwall in Stormcad?

How do you represent a headwall in Stormcad?

How do you represent a headwall in Stormcad?

(OP)
I googled, and looked around on the Bentley forums to no avail. As far as I can tell, there's no elegant way to model a headwall in this program. (Often, I have a headwall intercepting channel flow at the top of a storm sewer system.)

I used a no-loss, 100% efficiency catch basin, with rim height equal to pipe outflow invert.

RE: How do you represent a headwall in Stormcad?

Quote:

I used a no-loss, 100% efficiency catch basin, with rim height equal to pipe outflow invert.

That's what I always did.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

RE: How do you represent a headwall in Stormcad?

Its been a while since I used stormcad but I recall that you can inject a flow into a pipe system.

RE: How do you represent a headwall in Stormcad?

You have to inject it at a node though, and that node must be an "inlet" node.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

RE: How do you represent a headwall in Stormcad?

Why would you ever think it would be OK to have no headloss at an entrance, especially a headwall? Use Ke= 0.5 for a structure loss.

RE: How do you represent a headwall in Stormcad?

I always used to account for that by hand when determining ponding at the headwall, if necessary for the design.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

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