Key Terms - Flood-Prone Area

This image shows Flood-Prone Area and width and area.

Flood-prone area:

An area bordering a Stream that will be covered by Stream waters at a flood stage of twice the maximum Bankfull Depth

Flood-prone width (WFP):

The Stream width at which the discharge level is defined as twice the maximum Bankfull Depth

Original Image courtesy of FISRWG