A quarter of the nation's roads in peril against flooding, report on infrastructure risk says

Almost a quarter of the nation's roads and other critical infrastructure — from hospitals to police and fire stations to wastewater treatment plants — are at risk of becoming overcome by climate change-exacerbated flooding, a new report from the nonprofit First Street Foundation finds.

The report examines risk over the next three decades, including every mile of road and major infrastructure in nearly all U.S. counties. It also examines risks for commercial and residential flooding as well as "social infrastructure" like government buildings, churches and schools.

After a summer of outsized floods across the nation — from Louisiana to Michigan to New York City — the report's researchers say one thing is clear: The U.S. isn't prepared.