Code of Federal Regulations > Title 23 > Chapter I > Part 650 - PART 650—BRIDGES, STRUCTURES, AND HYDRAULICS

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 650.101 - § 650.117] - Subpart A—Location and Hydraulic Design of Encroachments on Flood Plains

Subpart B [§ 650.201 - § 650.211] - Subpart B—Erosion and Sediment Control on Highway Construction Projects

Subpart C [§ 650.301 - § 650.317] - Subpart C—National Bridge Inspection Standards (NBIS)

Subpart D - Subpart D [Reserved]

Subpart E [§ 650.501 - § 650.517] - Subpart E—National Tunnel Inspection Standards

Subpart F - Subparts F-G [Reserved]

Subpart H [§ 650.801 - § 650.809] - Subpart H—Navigational Clearances for Bridges