Maximum HGL Head Class in InfoSWMM AND H2OMAP SWMM

You can find the node flood or surcharge maximum occurrence during a simulation in the Junction Summary Report table in InfoSWMM and H2OMAP SWMM (Figure 1)

Empty if the Node Head is below or equal to the Lowest Link Connecting Elevation

Below Link Crown if the Node Head is below or equal to the Highest Link Connecting Crown

Below Maximum Depth if the Node Head is below or equal to the Node Invert + Full Depth. The column Max Surcharge Height above Crown will also tell you how deep the Surcharge in a Node.

Surchaged if none of the above is true.

Figure 1. Junction Summary Report in InfoSWMM

Figure 2. Maximum Surcharge Height above Crown Definition