; 50 Stat. 879; chapter 877). (9) Charleston, South Carolina Modifications to the project for navigation, Charleston Harbor, South Carolina, authorized by section 1401(1) of the Water Resources Development Act of 2016 (130 Stat. 1709), including improvements to address potential or actual changed conditions on that portion of the project that serves the North Charleston Terminal. (10) Addicks and Barker Reservoirs, Texas Modifications to the project for flood risk management, Addicks and Barker Reservoirs, Texas. (11) Monongahela River, West Virginia Modifications to the project for recreation, Monongahela River, West Virginia. (c) Special rule, St. Marys River, Michigan The cost of the study under subsection (b)(6) shall be shared in accordance with the cost share applicable to construction of the project for navigation, Sault Sainte Marie, Michigan, authorized by section 1149 of the Water Resources Development Act of 1986 (100 Stat. 4254; 121 Stat. 1131). 202. Vertical integration and acceleration of studies (a) In general Section 1001 of the Water Resources Reform and Development Act of 2014 ( 33 U.S.C. 2282c ) is amended— (1) by redesignating subsections (d), (e), and (f) as subsections (e), (f), and (g), respectively; (2) by inserting after subsection (c) the following: (d) Delegation (1) In general The Secretary shall delegate the determination to grant an extension under subsection (c) to the Commander of the relevant Division if— (A) the final feasibility report for the study can be completed with an extension of not more than 1 year beyond the time period described in subsection (a)(1); or (B) the feasibility study requires an additional cost of not more than $1,000,000 above the amount described in subsection (a)(2). (2) Guidance If the Secretary determines that implementation guidance is necessary to implement this subsection, the Secretary shall issue such implementation guidance not later than 180 days after the date of enactment of the Water Resources Development Act of 2024 .