The existing outlet structure is a 34"x48" precast catch basin. There is a 6" underdrain that is at the bottom of the bioretention basin. All water that enters the bioretention area will reach this underdrain. Large storm events fill the bioretention area and then enter the top of the catch...
I have attempted the DSI method, oscillations still occur. I have attempted the Sim-Route method, oscillations still occur. I have attempted to adjust the finer routing using 1, 2, 3...all still producing oscillations.
The 34x18 orifice is the top of a catch basin with a trash rack. This is...
I am modeling an existing watershed to compare the volume of water from pre to post. I have the watershed subdivided into 3 drainage areas. The reason I need to subdivide the watershed is because of proposed changes to the existing bioretention and an additional proposed bioretention. I need...
Hello all...
I have a small drainage area (1.60 acres) sheet flowing into an infiltration trench that is 3' wide by 155' long. I have added exfiltration as discarded and the primary outfall is the top of the trench entered as a custon wier. The water surface elevations for all storm events...
