Banqiao Dam - History

The Banqiao Reservoir Dam (Chinese: 板桥水库大坝; Pinyin: Bǎnqiáo Shuǐkù Dàbà) and Shimantan Reservoir Dam (Chinese: 石漫滩水库大坝; Pinyin: Shímàntān Shuǐkù Dàbà) are among 62 dams in Zhumadian Prefecture of China's Henan Province that failed catastrophically in 1975 during Typhoon Nina. Approximately 26,000 pe ...

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• Banqiao Dam - History
• Banqiao Dam - Banqiao flood

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The Banqiao dam was built in the early 1950s on the Ru River as part of a project to control flooding. The dam was 118 meters high (387 feet) and had a storage capacity of 492 million cubic meters (398,000 acre feet), with 375 million cubic meters (304,000 acre feet) reserved for flood storage. Cracks in the dam and sluice gates appeared after completion due to construction and engineering errors. They were repaired with advice from Soviet engineers and the new design, dubbed the ir ...

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Banqiao Dam, Banqiao Dam - History, Banqiao Dam - Banqiao flood

Read more here: » Banqiao Dam: Encyclopedia II - Banqiao Dam - History

The Dam was designed to survive a 1-in-1,000-year flood (306 mm {12 inches} rainfall per day). However, in August of 1975 a 1-in-2,000 year flood occurred, as a result of a major typhoon and several days of wild-range record-high storms (new records were set, at 160.4 mm {6.3 inches} rainfall per hour and 1,631 mm {64 inches} rainfall per day, while the average annual precipitation was about 800 mm {31 inches}). The sluice gates were not able to handle the overflow of water, partially due to sedimentat ...

See also:

Banqiao Dam, Banqiao Dam - History, Banqiao Dam - Banqiao flood

Read more here: » Banqiao Dam: Encyclopedia II - Banqiao Dam - Banqiao flood