California has six of the nation’s 1,680 high-hazard dams deemed in risky condition
A review of federal data and reports obtained under state open records laws identified 1,688 high-hazard dams rated in poor or unsatisfactory condition as of last year in 44 states and Puerto Rico. … In California, six high-hazard dams were rated as poor or unsatisfactory, including Oroville, which failed in 2017 and prompted mass evacuations downstream.
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