; or (2) the Committee on Environment and Public Works of the Senate and the Committee on Transportation and Infrastructure of the House of Representatives, if the plan includes any single structure providing more than 4,000 acre-feet of total capacity. . 6. Multibenefit work of improvement allocation Section 5 of the Watershed Protection and Flood Prevention Act ( 16 U.S.C. 1005 ) is amended to read as follows: 5. Multibenefit work of improvement allocation The Secretary shall allocate not less than 50 percent of the total amount made available under this Act for each fiscal year for the planning, design, or construction of multibenefit works of improvement. . 7. Repeals; redesignations (a) Repeals Sections 9 and 11 of the Watershed Protection and Flood Prevention Act ( 16 U.S.C. 1006b ; 16 U.S.C. 1001 note; 68 Stat. 668; 70 Stat. 1090) are repealed. (b) Redesignations The Watershed Protection and Flood Prevention Act is amended by redesignating sections 3A, 6, 7, 8, 12, 13, 14, and 15 ( 16 U.S.C. 1003a , 1006; 68 Stat. 668; 16 U.S.C. 1006a , 1008, 1010, 1012, 1012a) as sections 6, 9, 11, 12, 13, 14, 15, and 16, respectively. (c) Conforming amendments (1) Section 515(b)(8)(B) of the Surface Mining Control and Reclamation Act of 1977 ( 30 U.S.C. 1265(b)(8)(B) ) is amended by striking Public Law 83–566 ( 16 U.S.C. 1006 ) and inserting section 9 of the Watershed Protection and Flood Prevention Act . (2) Section 1211(a)(3)(D) of the Food Security Act of 1985 ( 16 U.S.C. 3811(a)(3)(D) ) is amended— (A) by striking or 8 ; (B) by striking and 1006a ; and (C) by inserting or section 12 of that Act before the period at the end. (3) Section 1221(b)(3)(D) of the Food Security Act of 1985 ( 16 U.S.C. 3821(b)(3)(D) ) is amended— (A) by striking or 8 ; (B) by striking and 1006a