Banqiao Dam failure - 1975, China [died: 231 000]
Bang1iao dam designed to withstand flooding (306 mm (12 inches)of rainfall per day). In August 1975, there was a flood, pouring morethan a year of rainfall in 24 hours, weather forecasts failed topredict. Sluice gate is not able to handle the overflow of water, partlydue to obstruction of sedimentation. As a result of obstruction, 64dams failed.
When the dam finally burst, it caused a big wave, 10 kilometers (6 miles) wide, 3-7 meters (9-23 feet) high, rushed down into the plainsbelow at nearly 50 kilometers per hour (31 mph) . nearly dozens ofarea 55 kilometers long, 15 kilometers wide, is made as large as12,000 km ² lake (4,600 square miles). Evacuation is not yet fully delivered due to bad weather conditions and communication
Bang1iao dam designed to withstand flooding (306 mm (12 inches)of rainfall per day). In August 1975, there was a flood, pouring morethan a year of rainfall in 24 hours, weather forecasts failed topredict. Sluice gate is not able to handle the overflow of water, partlydue to obstruction of sedimentation. As a result of obstruction, 64dams failed.
When the dam finally burst, it caused a big wave, 10 kilometers (6 miles) wide, 3-7 meters (9-23 feet) high, rushed down into the plainsbelow at nearly 50 kilometers per hour (31 mph) . nearly dozens ofarea 55 kilometers long, 15 kilometers wide, is made as large as12,000 km ² lake (4,600 square miles). Evacuation is not yet fully delivered due to bad weather conditions and communication
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