33 USC § 664 - General duties as to plans for protection of navigation

---
identifier: "/us/usc/t33/s664"
source: "usc"
legal_status: "official_prima_facie"
title: "33 USC § 664 - General duties as to plans for protection of navigation"
title_number: 33
title_name: "NAVIGATION AND NAVIGABLE WATERS"
section_number: "664"
section_name: "General duties as to plans for protection of navigation"
chapter_number: 14
chapter_name: "CALIFORNIA DEBRIS COMMISSION"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Mar. 1, 1893, ch. 183, § 4, 27 Stat. 507.)"
---


# § 664. General duties as to plans for protection of navigation

March 1, 1893

It shall be the duty of said commission to mature and adopt such plan or plans, from examinations and surveys made prior to , 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.

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**Source Credit**: (Mar. 1, 1893, ch. 183, § 4, 27 Stat. 507.)

## Statutory Notes and Related Subsidiaries

### Transfer of Functions

California Debris Commission abolished and functions transferred to Secretary of the Army by , , , set out as a note under .