Overtopping performance of earthen dams during record flooding in Columbia, South Carolina
South Carolina experienced what has been described as a 1,000-year flood on October 4 and 5, 2015. Widespread rainfall from Hurricane Joaquin pounded the state's capital city, Columbia, with over 20 inches of rain recorded in many locations. As a result, over 70 miles of Interstate 95 had to be closed, in addition to local roads and bridges, and thousands of residents had to flee their homes. State-wide, 36 dams failed – 31 state-regulated, 1 federally-regulated (on Fort Jackson), and 4 unregulated. The South Carolina Department of Health and Environmental Control (DHEC) issued emergency orders ...
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