Redlands, CA Environmental Rules: Flood Zones (2026)

32, Flood Damage Prevention, adopts by reference the 1997 Flood Insurance Study for San Bernardino County and its accompanying Flood Insurance Rate Maps and Flood Boundary and Floodway Maps, kept on file at the Department of Building and Safety, 35 Cajon Street, Suite 20. 090, anyone building or developing within an area of special flood hazard must first obtain a development permit, submitting a site plan with spot ground elevations at building corners, the location of water supply, sewer and utility lines, the base flood elevation from the flood insurance study where available, and the location of any regulatory floodway.

Foundation applications must show the proposed elevation of the lowest floor relative to mean sea level, and, for fill-supported foundations, the height of fill and compaction to 95 percent under the standard proctor test. 100 assigns the Chief Building Official, as floodplain administrator, the duty to confirm state and federal permits are obtained, that the site is reasonably safe from flooding, and that development will not raise the base flood water surface elevation more than one foot at any point. Where FEMA has not published base flood elevation data, the administrator must derive it using either the simplified USGS regression/Quick-2 method or the detailed Army Corps HEC-HMS/HEC-RAS method.

050 makes noncompliance with the chapter, including violations of conditions attached to a permit, a misdemeanor, and lets the city take any action necessary to prevent or remedy the violation regardless of the criminal penalty. 060 provides that where this chapter conflicts with another ordinance, easement, covenant or deed restriction, the more stringent restriction controls.