; 134 Stat. 2661) is amended by adding at the end the following: (d) Forecast-informed reservoir operations in the Colorado River Basin (1) In general Not later than 1 year after the date of enactment of this subsection, the Secretary shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Environment and Public Works of the Senate a report that assesses the viability of forecast-informed reservoir operations at a reservoir in the Colorado River Basin. (2) Authorization If the Secretary determines, and includes in the report under paragraph (1), that forecast-informed reservoir operations are viable at a reservoir in the Colorado River Basin, the Secretary is authorized to carry out forecast-informed reservoir operations at that reservoir, subject to the availability of appropriations. . 209. Beaver Lake, Arkansas, reallocation study The Secretary shall expedite the completion of a study for the reallocation of water supply storage, carried out in accordance with section 301 of the Water Supply Act of 1958 ( 43 U.S.C. 390b ), for the Beaver Water District, Beaver Lake, Arkansas. 210. Gathright Dam, Virginia, study The Secretary shall conduct a study on the feasibility of modifying the project for flood risk management, Gathright Dam, Virginia, authorized by section 10 of the Flood Control Act of 1946 (60 Stat. 645, chapter 596), to include downstream recreation as a project purpose. 211. Delaware Inland Bays Watershed Study (a) In general The Secretary shall conduct a study to restore aquatic ecosystems in the Delaware Inland Bays Watershed. (b) Requirements (1) In general In carrying out the study under subsection (a), the Secretary shall— (A) conduct a comprehensive analysis of ecosystem restoration needs in the Delaware Inland Bays Watershed, including— (i) saltmarsh restoration; (ii) shoreline stabilization; (iii) stormwater management; and (iv) an identification of sources for the beneficial use of dredged materials