Funds , $60,000,000, to remain available until September 30, 2017, for necessary expenses related to the consequences of Hurricane Harvey: Provided , That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. IV Department of the Army Corps of Engineers—Civil Investigations For an additional amount for Investigations for necessary expenses related to the consequences of Hurricane Harvey, $150,000,000, to remain available until expended to expedite at full Federal expense studies of flood and storm damage reduction: Provided, That using $120,000,000 of the funds provided herein, the Secretary of the Army shall expedite and complete ongoing flood and storm damage reduction studies in areas that were impacted by Hurricane Harvey in the Southwestern and Mississippi Valley Divisions of the United States Army Corps of Engineers: Provided further, That using up to $20,000,000 of the funds provided herein, the Secretary shall conduct a comprehensive study to address the flood risks of vulnerable coastal populations in areas that were affected by Hurricane Harvey within the boundaries of the Southwestern and Mississippi Valley Divisions of the Corps: Provided further, That an interim report with an assessment of authorized Corps projects for reducing flooding and storm risks in the affected area that have been constructed or are under construction, including construction cost estimates, shall be submitted to the Committees on Appropriations of the House of Representatives and the Senate not later than March 1, 2018: Provided further, That an interim report identifying any previously authorized but unconstructed Corps project and any project under study by the Corps for reducing flooding and storm damage risks in the affected area, including updated construction cost estimates, that are, or would be, consistent with the comprehensive study shall be submitted to the appropriate congressional