 A peak breach flow of 147,000 ft3/s (4,200 m3/s) was estimated from the breach geometry, breach timing and the reservoir volume.The Big Bay embankment, which is largely intact, is approximately 1890 feet long and 51.3 feet high.The failure occurred with an initial water surface about 6 inches (0.15 m) above the normal pool elevation of 278.0 ft (84.73 m), releasing 14,200 ac-ft (17,500,000 m3) of water and inundating 14.3 miles (23.0 km) of valley to depths of up to 33 ft (10 m) from the dam to the Pearl River.