▲ 5 r/HECRAS
Floodplain Determination
What have you all found to be the best way to determine the floodplain boundary for a 100 year flood for example? In the photo I’ve attached would the 100 year floodplain be where it intersects the channel since the water isn’t actually leaving the channel or does it include the area to the left that is showing as inundated?
u/nymphfer — 6 days ago