Part 650 - BRIDGES, STRUCTURES, AND HYDRAULICS
- Subpart A - LOCATION AND HYDRAULIC DESIGN OF ENCROACHMENTS ON FLOOD PLAINS (§§ 650.101 — 650.117)
- Subpart B - EROSION AND SEDIMENT CONTROL ON HIGHWAY CONSTRUCTION PROJECTS (§§ 650.201 — 650.211)
- Subpart C - NATIONAL BRIDGE INSPECTION STANDARDS (NBIS) (§§ 650.301 — 650.317)
- Subpart E - NATIONAL TUNNEL INSPECTION STANDARDS (§§ 650.501 — 650.517)
- Subpart H - NAVIGATIONAL CLEARANCES FOR BRIDGES (§§ 650.801 — 650.809)