Subject: Runoff Routing Options Example in SWMM 5
· All Runoff to an Outlet Node
· All Runoff to another Subcatchment
· All Runoff to the Pervious Area of the Subcatchment or other Subcatchment
· All Runoff to the Impervious Area of the Subcatchment or other Subcatchment
· Partial Runoff to the Pervious Area of the Subcatchment or other Subcatchment
· Partial Runoff to the Impervious Area of the Subcatchment or other Subcatchment
There are six options for runoff routing in SWMM 5:
· All Runoff to another Subcatchment
· All Runoff to the Pervious Area of the Subcatchment or other Subcatchment
· All Runoff to the Impervious Area of the Subcatchment or other Subcatchment
· Partial Runoff to the Pervious Area of the Subcatchment or other Subcatchment
· Partial Runoff to the Impervious Area of the Subcatchment or other Subcatchment
The attached example SWMM 5.0.022 file has three catchments in a chain, the 1st Subcatchment Routes to the Pervious area of the 2nd Subcatchment and the 2nd Subcatchment routes the runoff to the Impervious area of the 3rd Subcatchment which routes all runoff to an outlet node.