33 U.S.C. § 512
Obstruction of navigation
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 .)
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 .)