How to approximate the Flood polygon created in InfoSWMM RAM by using Arc Toolbox
How to approximate the Flood polygon created in InfoSWMM RAM by using Arc Toolbox and Subcatchment Manager Tools
Step 1 – Run InfoSWMM and use Map Display to show the Maximum HGL. This is just for reference to the later created polygons.

Step 2 – not needed but as a … Read the rest