; (2) in subsection (f)(4), by striking 75 miles and inserting 150 miles ; and (3) in subsection (i)(5)(B)— (A) in the matter preceding clause (i), by striking 10 percent and inserting 30 percent ; (B) in clause (i), by striking and at the end; (C) in clause (ii), by striking the period at the end and inserting a semicolon; and (D) by adding at the end the following: (iii) for the modernization or rehabilitation of a lock and dam, if the Secretary determines that the project— (I) is functionally connected to the National Highway Freight Network; and (II) is likely to reduce on-road mobile source emissions; and (iv) on a marine highway corridor, connector, or crossing designated by the Secretary under section 55601(c) of title 46 (including an inland waterway corridor, connector, or crossing), if the Secretary determines that the project— (I) is functionally connected to the National Highway Freight Network; and (II) is likely to reduce on-road mobile source emissions. . 1115. Congestion mitigation and air quality improvement program Section 149 of title 23, United States Code, is amended— (1) in subsection (b)— (A) in the matter preceding paragraph (1), by striking subsection (d) and inserting subsections (d) and (m)(1)(B)(ii) ; (B) in paragraph (8)(B), by striking or at the end; (C) in paragraph (9), by striking the period at the end and inserting a semicolon; and (D) by adding at the end the following: (10) if the project is for the modernization or rehabilitation of a lock and dam that— (A) is functionally connected to the Federal-aid highway system; and (B) the Secretary determines is likely to contribute to the attainment or maintenance of a national ambient air quality standard; or (11) if the project is on a marine highway corridor, connector, or crossing designated by the Secretary under section 55601(c) of title 46 (including an inland waterway corridor, connector, or crossing) that— (A) is functionally connected to the Federal-aid highway system