Morning Glory spillway user defined curves

[Paolriv]

I’m modeling a Morning Glory Spillway. As you can see in the images, i used the user defined curves for the spillway, but when i run it, there is more flow going throught the spillway than I defined in the curves. There is a way I can solve this problem?

[Anonymous]

It is extrapolating off the end of the curves. The water surface is going higher than 888.8 and the gate opening goes up to 5.8 which is larger than 1.

Add another HW at 895 and give it a flow of 200.

Change the gate open from “1” to something larger. Maybe try “6”.

[Author]

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