No bridge shall at any time unreasonably obstruct the free navigation of any navigable waters of the United States.
(June 21, 1940, ch. 409, §2, 54 Stat. 498.)
Sections: Previous 497 498 499 500 502 508 511 512 513 514 515 516 517 518 519 Next
Last modified: October 26, 2015