Detention Ponds w/ 2ndary Outlet
Detention Ponds w/ 2ndary Outlet
(OP)
I am modeling a detention pond w/ a catch basin inlet set one foot above the floor of the pond, leading to a culvert whose invert is below the pond floor. When I add an emergency spillway as a secondary outlet, I get 0 cfs flowing through the inlet & culvert. If I remove the secondary spillway from the calculation, the pond outflow is subject to wild oscillations. Any ideas why this is happening & more importantly, how to correct it?





RE: Detention Ponds w/ 2ndary Outlet
Thanks.
RE: Detention Ponds w/ 2ndary Outlet
RE: Detention Ponds w/ 2ndary Outlet
RE: Detention Ponds w/ 2ndary Outlet
If you were to add another device it would be device number 6 (the next blank line.) The ROUTING would be set to indicate where the flow goes after passing through that device. For further details please see www.hydrocad.net/pond1.htm