This subchapter shall apply to all international bridges constructed under the authority of this subchapter. Section 535a of this title and section 129(a)(3) of title 23, shall apply to all international bridges the construction of which has been heretofore approved by Congress, notwithstanding any conflicting provision in any Act authorizing the construction of such a bridge or in any agreement entered into by the Federal Government and a State.
33 U.S.C. § 535f