2016—Pub. L. 114–120 substituted “Secretary of the department in which the Coast Guard is operating” for “Secretary of Transportation”.

1984—Pub. L. 98–557 substituted “for the Secretary’s approval, nor until the Secretary” for “and Chief of Engineers for their approval, nor until they” and struck out “by the Chief of Engineers and” after “have been approved”, “of the Chief of Engineers and” after “received the approval”, and “of Transportation” after “by the Secretary” and after “of the Secretary”.

1983—Pub. L. 97–449 substituted “Secretary of Transportation” for “Secretary of War” wherever appearing. See Transfer of Functions note below.

1982—Pub. L. 97–322 inserted sentence at end relating to exemption.

Sections 491 to 494 and 495 to 498 of this title are popularly known as the “Bridge Act of 1906” and the “General Bridge Act of 1906”.

Functions, powers, and duties of Secretary of the Army [formerly War] and other offices and officers of Department of the Army [formerly War] under this section to extent that they relate generally to location and clearances of bridges and causeways in navigable waters of United States transferred to and vested in Secretary of Transportation by Pub. L. 89–670, § 6(g)(6)(B), Oct. 15, 1966, 80 Stat. 941. Pub. L. 97–449 amended this section to reflect transfer made by section 6(g)(6)(B) of Pub. L. 89–670, and repealed section 6(g)(6)(B).