US lawFederal (United States)RegulationsTitle 23 CFR — HighwaysChapter I — FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 650 — BRIDGES, STRUCTURES, AND HYDRAULICSSubpart A — Location and Hydraulic Design of Encroachments on Flood Plains650.10123 C.F.R. § 650.101Purpose.Last amended: 2017Year: 2026Length: 30 wordsOfficial source Cite as 23 C.F.R. § 650.101 (2026)To prescribe Federal Highway Administration (FHWA) policies and procedures for the location and hydraulic design of highway encroachments on flood plains, including direct Federal highway projects administered by the FHWA.Next23 C.F.R. § 650.103