; for restudy of authorized projects; and for miscellaneous investigations, and, when authorized by law, surveys and detailed studies, and plans and specifications of projects prior to construction, $151,000,000 (increased by $1,300,000) (reduced by $1,300,000), to remain available until expended: Provided , That the Secretary shall initiate seven new study starts during fiscal year 2021: Provided further , That the Secretary shall not deviate from the new starts proposed in the work plan, once the plan has been submitted to the Committees on Appropriations of both Houses of Congress. Construction For expenses necessary for the construction of river and harbor, flood and storm damage reduction, shore protection, aquatic ecosystem restoration, and related projects authorized by law; for conducting detailed studies, and plans and specifications, of such projects (including those involving participation by States, local governments, or private groups) authorized or made eligible for selection by law (but such detailed studies, and plans and specifications, shall not constitute a commitment of the Government to construction); $2,619,855,000 (increased by $10,000,000) (reduced by $10,000,000) (reduced by $78,300,000) (increased by $78,300,000) (increased by $20,000,000) (reduced by $20,000,000) (increased by $7,000,000) (reduced by $7,000,000) (reduced by $52,500,000) (increased by $52,500,000), to remain available until expended; of which such sums as are necessary to cover the Federal share of construction costs for facilities under the Dredged Material Disposal Facilities program shall be derived from the Harbor Maintenance Trust Fund as authorized by Public Law 104–303