Pre 2014 Blogs

Subject:   Runoff Routing Options Example in SWMM 5

There are six options for runoff routing 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

The attached example SWMM 5.0.022 file has three catchments in a chain, the 1^st Subcatchment Routes to the Pervious area of the 2^nd Subcatchment and the 2^nd Subcatchment routes the runoff to the Impervious area of the 3^rd Subcatchment which routes all runoff to an outlet node.