[20211213]IF10606_大坝安全：联邦计划和当局.pdf

https:/crsreports.congress.gov Updated December 13, 2021Dam Safety: Federal Programs and AuthoritiesIn recent years, several incidents have highlighted the public safety risks posed by the failure of dams and related facilities. In 2017, the near failure of the Oroville Dam spillway in California resulted in a precautionary evacuation of approximately 200,000 people and cost more than $1.1 billion in emergency response and repair. The 2019 failure of Spencer Dam in Nebraska resulted in the first dam-failure fatality in the nation since 2006; the 2020 failure of two hydropower dams in Michigan resulted in an estimated $175 million in damages. The 117th Congress has increased funding to support dam safety principally through Division J of the Infrastructure Investment and Jobs Act (IIJA; P.L. 117-58). Congress may consider additional oversight of agency implementation of dam safety activities and additional legislation to improve dam safety. This In Focus summarizes the U.S. dam inventory, dam rehabilitation and repair estimates, and federal dam safety activities and funding. For more detailed information and analysis, see CRS Report R45981, Dam Safety Overview and the Federal Role.