Walker County, GA Hurricane Preparedness: Flood Elevation (2026)

Walker County Code § 22-361 sets the specific construction standards that apply once a Development Permit has been issued for a flood hazard area under Section 22-360. New construction and substantial improvements, including manufactured homes, must be anchored to prevent flotation, collapse or lateral movement; for manufactured homes, the anchoring standard, over-the-top or frame ties to ground anchors, works alongside the state's separate wind-resistance requirements, so the same tie-down system that survives a windstorm also has to survive rising water. For residential structures specifically, the ordinance requires the lowest floor, including a basement, to sit no lower than 1 foot above the base flood elevation (BFE), the elevation FEMA calculates has a 1 percent annual chance of flooding.

A builder who elevates a house on solid perimeter foundation walls instead of piers must include openings sized to let water pass through and equalize hydrostatic pressure on the walls automatically. Because Walker County sits inland along the Tennessee line, its flood risk comes less from storm surge than from heavy rain events, including remnants of tropical systems moving up from the Gulf, that can overwhelm local creeks and streams; the 1-foot freeboard above BFE gives homes in mapped flood hazard areas a margin against that rain-driven flooding. The Planning Director certifies the as-built lowest-floor elevation as part of the permit file before construction is signed off.