---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "ch11/schI"
level: "subchapter"
label: "Subchapter I"
heading: "General Provisions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/33/ch11-schI"
sections_count: 17
---

# Subchapter I — General Provisions

Title 33 — Navigation and Navigable Waters › Chapter 11 — Bridges Over Navigable Waters

## Sections

- [§491. Approval of and deviation from plans; exemptions](/usc/33/491.md)
- [§492. Bridge as post route; limitation as to charges against Government; telegraph and telephone lines](/usc/33/492.md)
- [§493. Use of railroad bridges by other railroad companies](/usc/33/493.md)
- [§494. Obstruction of navigation; alterations and removals; lights and signals; draws](/usc/33/494.md)
- [§494a. Study of bridges over navigable waters](/usc/33/494a.md)
- [§495. Violations of orders respecting bridges and accessory works](/usc/33/495.md)
- [§496. Time for commencement and completion of bridge](/usc/33/496.md)
- [§497. “Persons” defined](/usc/33/497.md)
- [§498. Reservation of right to alter or repeal](/usc/33/498.md)
- [§498a. Repealed.](/usc/33/498a.md)
- [§498b. Repealed.](/usc/33/498b.md)
- [§499. Regulations for drawbridges](/usc/33/499.md)
- [§500. Deflection of current; liability to riparian owners](/usc/33/500.md)
- [§501. Omitted](/usc/33/501.md)
- [§502. Alteration, removal, or repair of bridge or accessory obstructions to navigation](/usc/33/502.md)
- [§503...507. Repealed.](/usc/33/503...507.md)
- [§508. Amount of tolls](/usc/33/508.md)