Title 33, Navigation and Navigable WatersRelease 119-102

§664 General Duties as to Plans for Protection of Navigation

Title 33 › CHAPTER 14 — CALIFORNIA DEBRIS COMMISSION › § 664

Last updated Aug 21, 2026|Official source

Summary

The commission must make and approve plans, based on surveys done before March 1, 1893 and any new surveys it needs, to make the rivers easier to navigate. The plans must deepen channels, protect riverbanks, prevent damage from mining debris, erosion, or other causes, and restore navigation as close as possible to its 1860 condition. Hydraulic mining, as the State defines it, may be allowed if it does not harm navigation or nearby land.

Full Legal Text

Title 33, §664

Navigation and Navigable Waters, Source: USLM XML via OLRC

It shall be the duty of said commission to mature and adopt such plan or plans, from examinations and surveys made prior to March 1, 1893, and from such additional examinations and surveys as it may deem necessary, as will improve the navigability of all the rivers comprising said systems, deepen their channels, and protect their banks. Such plan or plans shall be matured with a view of making the same effective as against the encroachment of and damage from debris resulting from mining operations, natural erosion, or other causes, with a view of restoring, as near as practicable and the necessities of commerce and navigation demand, the navigability of said rivers to the condition existing in 1860, and permitting mining by the hydraulic process, as the term is understood in said State, to be carried on, provided the same can be accomplished, without injury to the navigability of said rivers or the lands adjacent thereto.

Legislative History

Notes & Related Subsidiaries

Statutory Notes and Related Subsidiaries

Transfer of Functions

California Debris Commission abolished and functions transferred to Secretary of the Army by Pub. L. 99–662, title XI, § 1106, Nov. 17, 1986, 100 Stat. 4229, set out as a note under section 661 of this title.

Reference

Citations & Metadata

Citation

33 U.S.C. § 664

Title 33, Navigation and Navigable Waters

Last Updated

Aug 21, 2026

Release point: 119-102