Subchapter IV - PARTICULAR WORK OR IMPROVEMENTS
- Section 601 - Mississippi River; regulation of reservoirs at headwaters
- Section 602 - Maintenance of channel of South Pass of Mississippi River
- Section 603 - Repealed
- Section 603a - Removal of snags and debris, and straightening, clearing, and protecting channels in navigable waters
- Section 604 - Removal of snags, etc., from Mississippi River
- Section 605 - Operation of snag boats on Upper Mississippi River
- Section 605a - Mississippi River forecasting improvements
- Section 606 - Removal of snags, and so forth, from Ohio River
- Section 607 - Removal of drift from New York Harbor
- Section 607a - Appropriations; separate project
- Section 608 - Construction of fishways
- Section 609 - Sluices and other work in dams for development of water power
- Section 610 - Control of aquatic plant growths and invasive species