When building in a floodway, how much can base flood elevation (BFE) be increased?

When constructing in a floodway, the base flood elevation (BFE) cannot be increased. The purpose of the floodway is to ensure that there is no significant increase in flood levels, which is crucial for protecting lives and property during flood events. The floodway must remain an area where floodwaters can flow freely, and any construction that raises the BFE could obstruct this flow, thereby increasing the risk of flooding for surrounding areas.

By maintaining the BFE at its established level, communities can ensure compliance with the National Flood Insurance Program (NFIP) standards. These regulations are intended to minimize the impact of flooding on structures while preserving the natural function of floodplains. Therefore, the increase of BFE in a floodway is strictly prohibited to protect both the environment and the safety of individuals living in flood-prone areas.