Use the Catchment Area command to analyze water runoff and display the surface drainage area.
The command defines the surface region with a depression low point (catchment point), delineates the region with a boundary, and calculates the area of the catchment region.
Note: Use the Create Catchment From Surface or Create Catchment From Object command to create catchment objects which can be exported to Autodesk Storm and Sanitary Analysis for review.
You can use a water drop path utility to determine an accurate placement of catchment regions and catchment points.
Note: The Catchment Area command performs the analysis only on the selected surface region and does not account for overflow situations occurring in the neighboring surface regions.
