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Underground Storage Units

Posted by Julie Q on October 25, 2017 at 3:39pm in SWMM5

I am currently attempting to model in SWMM Stormtech chambers as a subsurface pond/storage unit connected to a surface pond with a higher stage. How do I cap off the underground system so water will not pond higher than the top of my chambers? When i run the model, it wants to flood and have the water go to a higher elevation.

Since the system is capped, once the chambers fill up, water should backflow to the pond.

Thanks

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Replies

Robert Dickinson October 25, 2017 at 6:29pm

Hello Julie,

Have you tried using a surcharge depth for those flooding nodes to prevent flooding and allow the water level to rise and not escape?

Regards,

Bob Dickinson

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