	Introduction

Under its civil works program, the U.S. Army Corps of Engineers (Corps) plans, builds, operates, and maintains a wide range of water resource facilities. Of this total, Congress provided $31.4 billion from 2005 to 2016, which was significant relative to the agency's regular (i.e., nonsupplemental) annual discretionary appropriations over that period (approximately $63.8 billion for FY2005 through FY2016). If supplemental bills provide funds to the Corps, they most frequently fund two accounts: Flood Control and Coastal Emergencies (FCCE; i.e., flood fighting, repairs to damaged nonfederal flood-control projects) and Operations and Maintenance (O&M; i.e., repairs to existing Corps projects). In some instances, principally since 2005, Congress also has provided supplemental funding for other Corps accounts, such as the Mississippi River and Tributaries (MR&T) account and the Construction account. Of the supplemental funds that Congress provided to the Corps for Hurricanes Katrina and Sandy, 31% and 66%, respectively, were for construction activities. In the wake of major flooding and other natural disasters, Congress often considers whether to provide supplemental appropriations to the Corps and other agencies. Proponents of providing supplemental funding for the Corps argue that these investments are significant for recovery efforts and improve flood resilience of the affected areas. Other stakeholders would prefer more attention and funding that supports other programs and measures to reduce the nation's flood risks. 4667 —Further Additional Supplemental Appropriations for Disaster Relief Requirements, 2017 (as passed by the House). It also discusses common issues that policymakers consider in deliberating on these supplemental appropriations bills. H.R. Like most supplemental appropriation bills with direct appropriations for the Corps, the bill would fund the agency's emergency response activities and repair of damage to flood-control works and other Corps civil works projects (e.g., navigation); these response and repair activities would be funded as follows: $537 million for natural disasters through the FCCE account, $608 million for natural disaster-related repairs through the O&M account, $370 million for natural disasters through the MR&T account, and $55 million for natural disaster-related repairs to Corps construction projects through the Construction account. H.R. For comparison, Congress directed 31% and 65% of the Corps supplemental funding for Hurricanes Katrina and Sandy to Corps construction of flood-risk reduction projects. 4667 would provide the Secretary of the Army authority to use funds from the bill to initiate construction on projects that have completed the agency's multistep project development process without obtaining project-specific congressional construction authorization, subject to approval by the House and Senate Appropriations Committees. Over the decade from FY2008 to FY2017, discretionary appropriations for Corps flood-related construction activities averaged $907 million annually; total funding for the decade was $9.1 billion. For supplemental appropriations related to Hurricane Sandy, cost-sharing requirements were waived for ongoing construction projects but not for new construction. H.R. Concluding Remarks

The 115 th Congress is considering possible responses to various natural disasters in 2017. In recent years through supplemental appropriations, Congress not only has funded the emergency response and repair activities of the Corps but also has provided the Corps with funding to study and construct projects that reduce flood risks in areas recently affected by some hurricanes and floods. H.R. 4667 proposes $12.09 billion for the agency's activities associated with response, repair, and recovery from natural disasters including Hurricanes Harvey, Irma, and Maria; of the $12.09 billion total, $10.425 billion would be for new construction of Corps flood-risk reduction projects in areas affected by Hurricanes Harvey, Irma, and Maria. These include the role of Congress in the authorization of construction of Corps projects that receive supplemental funds, whether to maintain requirements for nonfederal cost sharing, and what requirements to include regarding reporting to Congress and public transparency associated with supplemental funds. Supplemental Corps funding debates also raise broader questions for policymakers, such as the effectiveness and efficiency of processes such as those for postdisaster supplemental appropriations and Corps annual budget development, especially in regard to identifying and supporting priority investments in reducing the nation's flood risk.
Congress directs the U.S. Army Corps of Engineers (Corps) to plan and build water resource facilities through the agency's civil works program. The Corps also has a prominent role in responding to natural disasters, especially floods, in U.S. states and territories. In recent years through supplemental appropriations, Congress also has funded the agency to study and construct projects that reduce flood risks in areas recently affected by some hurricanes and floods. The 115th Congress is considering possible responses to various natural disasters in 2017. H.R. 4667—Further Additional Supplemental Appropriations for Disaster Relief Requirements, 2017 (as passed by the House)—proposes $12.09 billion for the agency's activities associated with response, repair, and recovery from natural disasters including Hurricanes Harvey, Irma, and Maria.
Policy Considerations. A common issue for Congress after a flood-related disaster is whether to provide supplemental funds directly to the Corps and, if so, how much and for which Corps activities. During its deliberations on recent supplemental appropriations bills, Congress also has considered whether to maintain requirements for nonfederal cost sharing, what requirements to include regarding reporting to Congress and public transparency associated with supplemental funds, and what type of flood damage-reduction efforts to support (e.g., repair of existing infrastructure, construction of new infrastructure). Supplemental Corps funding debates also may raise broader questions for policymakers. These include, for example, the effectiveness and efficiency of processes such as those for postdisaster supplemental appropriations and Corps annual budget development, especially in regard to identifying and supporting priority investments in reducing the nation's flood risk. Supporters of supplemental appropriations for the construction of Corps flood-risk reduction projects in natural disaster-affected areas view these projects as part of the broader recovery effort and as means to improve flood resilience of the affected areas. Other stakeholders would prefer more attention and funding that supports other programs and measures to reduce the nation's flood risks.
Supplemental Funds. From 2005 to 2016, Congress appropriated $31.4 billion in supplemental funding to the Corps; these funds amounted to almost half of the agency's annual discretionary appropriations over that same period. Of the $31.4 billion, $27.2 billion (87%) was for responding to flooding and other natural disasters. The majority of this funding related to Hurricane Katrina and other 2005 storms (approximately $16 billion) and to Hurricane Sandy in 2012 ($5.3 billion).
Supplemental bills most frequently fund two Corps accounts: Flood Control and Coastal Emergencies (FCCE; i.e., flood fighting, repairs to damaged nonfederal flood-control projects) and Operations and Maintenance (O&M; i.e., repairs to existing Corps projects). In some instances, principally since 2005, Congress also has provided supplemental funding for other Corps accounts, such as the Construction account. Of the supplemental funds that Congress provided to the Corps for Hurricanes Katrina and Sandy, 31% and 66%, respectively, were for construction activities. Of the $12.1 billion that H.R. 4667 would provide, $10.48 billion would be for activities in the agency's Construction account—$55 million for repairs to Corps construction projects damaged by natural disasters, and $10.425 billion for expedited construction of flood control and storm damage reduction projects in areas affected by Hurricanes Harvey, Irma, and Maria. That is, 86% of the funding for the Corps in H.R. 4667 would be for construction. For comparison, that amount would exceed the agency's $9.1 billion total discretionary spending appropriations for flood-related construction for the decade FY2008 to FY2017.
Conditions Applicable to Supplemental Funds. In supplemental appropriations bills, Congress has at times maintained, and at other times waived, local cost-sharing requirements for Corps flood-risk reduction construction projects. The standard nonfederal cost shares range from 35% to 50%, depending on the activity. H.R. 4667 would waive the nonfederal cost share for studies and ongoing construction funded through the bill. The bill also would provide the Secretary of the Army with the authority to use funds from the bill, subject to approval by the House and Senate Appropriations Committees, to initiate construction on projects that have completed the agency's multistep project development process without project-specific congressional construction authorization.