This stormwater vault is 22,800 sqft under the parking areas for 100yr floodplain compensation. The trouble is that it needs to be only 2.5 ft. deep which raises a flag about maintenance to everyone(not tall enough for someone to move freely around inside). I need some ingenious ideas about...
I currently have a sheet that FDOT provides which will give you overland velocities for certain landuses and slopes. I am wondering if anyone might have the same available for pipes?