---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "ch12"
level: "chapter"
label: "Chapter 12"
heading: "River and Harbor Improvements Generally"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/33/ch12"
sections_count: 132
---

# Chapter 12 — River and Harbor Improvements Generally

Title 33 — Navigation and Navigable Waters

## Contents

- [Subchapter I — General Provisions](/usc/33/ch12-schI.md)
- [Subchapter II — Pay and Allowances; Traveling Expenses and Subsistence](/usc/33/ch12-schII.md)
- [Subchapter III — Acquisition of Land and Materials](/usc/33/ch12-schIII.md)
- [Subchapter IV — Particular Work or Improvements](/usc/33/ch12-schIV.md)
- [Subchapter V — Prosecution of Work Generally](/usc/33/ch12-schV.md)