funding level for the project for flood damage reduction, Des Moines and Raccoon Rivers, Des Moines, Iowa, authorized by section 1001(21) of the Water Resources Development Act of 2007 (121 Stat. 1053). (3) Modification of the project for navigation, Ouachita-Black Rivers, Arkansas and Louisiana, authorized by section 101 of the River and Harbor Act of 1960 (74 Stat. 481) to include water supply as an authorized purpose. (4) Modification of the project for navigation, McClellan-Kerr Arkansas River, to deepen the navigation channel to a minimum depth of 12 feet, as authorized under section 136 of the Energy and Water Development Appropriations Act, 2004 (117 Stat. 1842). (5) Modification of the project for flood risk management and water supply, Tenkiller Ferry Lake, Arkansas River Basin, Oklahoma, authorized by section 4 of the Act of June 28, 1938 (52 Stat 1218, chapter 795) to modify water storage and provide for a sufficient quantity of water supply storage space in the inactive pool storage to support the fishery downstream from Tenkiller Reservoir. (6) Reauthorization of the project for environmental restoration, Muddy River, Brookline and Boston, Massachusetts, authorized by section 522 of the Water Resources Development Act of 2000 (114 Stat. 2656), and deauthorized pursuant to section 6001 of the Water Resources Reform and Development Act of 2014 ( 33 U.S.C. 579b ) (as in effect on the day before the date of enactment of the Water Infrastructure Improvements for the Nation Act (130 Stat. 1690)). (7) Modification of the project for flood damage reduction, Muddy River, Brookline and Boston, Massachusetts, authorized by section 522 of the Water Resources Development Act of 2000 (114 Stat. 2656), to provide that in the case of phase II of the project, the non-Federal interest is not required to pay any cost of the project above the initial estimate. (8) A feasibility study for a project for flood risk management, Hoosic River, Massachusetts. (9) A feasibility study for a project for aquatic ecosystem