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U.S. Code > Title 33 Navigation and Navigable Waters > CHAPTER 11—BRIDGES OVER NAVIGABLE WATERS (§§ 491—535i) > SUBCHAPTER II—ALTERATION OF BRIDGES (§§ 511—524) > § 512. Obstruction of navigation
§ 512. Obstruction of navigation
No bridge shall at any time unreasonably obstruct the free navigation of any navigable waters of the United States.