From the Document: "In recent years, several incidents have highlighted the public safety risks posed by the failure of dams and related facilities. From 2015 to 2018, over 100 dams breached in North Carolina and South Carolina due to record flooding. In 2017, the near failure of Oroville Dam's 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. In response to these incidents, Congress may consider additional oversight and legislation that could improve dam safety. This In Focus summarizes the U.S. dam inventory, rehabilitation and repair estimates, federal dam safety activities, and related issues for Congress."
CRS In Focus, IF10606
Congressional Research Service: https://crsreports.congress.gov/