Notwithstanding any provision of the Act of April 12, 1941 (55 Stat. 140, chapter 71), not later than 180 days after the date of enactment of this Act, the White County Bridge Commission shall convey, without consideration, to the New Harmony River Bridge Authority and the New Harmony and Wabash River Bridge Authority, any and all right, title, and interest of such Commission in and to the bridge across the Wabash River at or near New Harmony, Indiana, in the approaches thereto, and in land underneath or adjacent to such bridge and its approaches.