Medford, OR Environmental Rules: Flood Elevation Requirements (2026)

025(2)(c)(iii)(A), which additionally allows floodproofing to the same one-foot-above-BFE line as an alternative to elevation, certified by a registered Oregon-licensed professional engineer or architect. 020(2)(a)(v) directs the Floodplain Administrator to "provide to building officials the base flood elevation (BFE) and one foot of freeboard elevation standard applicable to any building requiring a development permit," making the freeboard figure a mandatory input into every building permit review in the mapped floodplain. 025(2)(a), with a minimum of two openings and net open area of at least one square inch per square foot of enclosed space, positioned no higher than one foot above grade.

025(1)(i). 025(1)(g) requires development in an unnumbered A zone to be elevated at least two feet above the highest adjacent grade, warning that failure to do so may result in higher flood insurance premiums. 020(2)(b), must obtain, record, and maintain elevation certificates for the lowest floor of every new or substantially improved structure in the mapped floodplain.