Title 33 — Navigation and Navigable WatersRelease 119-73
§546 Investigation of stream flow and watersheds; surveys in connection with dams
Title 33 › Chapter CHAPTER 12— - RIVER AND HARBOR IMPROVEMENTS GENERALLY › Subchapter SUBCHAPTER I— - GENERAL PROVISIONS › § 546
Summary
Surveys of navigable streams must measure stream flow and study the surrounding watersheds when needed to make improvement plans and to consider all uses that affect navigation. If a dam is approved or being reviewed by Congress, similar studies of the affected parts of the stream may be done.
Full Legal Text
Title 33, §546
Navigation and Navigable Waters — Source: USLM XML via OLRC
The surveys of navigable streams shall include such stream-flow measurements and other investigations of the watersheds as may be necessary for preparation of plans of improvement and a proper consideration of all uses of the stream affecting navigation, and whenever necessary similar investigations may be made in connection with all navigable streams under improvement. Whenever permission for the construction of dams in navigable streams is granted, or is under consideration by Congress, such surveys and investigations of the sections of the streams affected may be made as are necessary to secure conformity with rational plans for the improvement of the streams for navigation.
Legislative History
Notes & Related Subsidiaries
Editorial Notes
Codification Section is from section 3 of act June 25, 1910, popularly known as the “Rivers and Harbors Appropriation Act of 1910”. Other provisions of such section were omitted, as superseded by section 545 of this title.
Prior Provisions
General provisions regulating the
Construction
of dams were made by the Dam Act of
June 21, 1906, ch. 3508, 34 Stat. 386, as amended by act
June 23, 1910, ch. 360, 36 Stat. 593, apparently omitted from the Code as superseded.
Reference
Citations & Metadata
Citation
33 U.S.C. § 546
Title 33 — Navigation and Navigable Waters
Last Updated
Apr 6, 2026
Release point: 119-73