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In November, 1965, three of eight large reinforced concrete cooling towers collapsed at the Ferrybridge Power Station in England, under severe wind conditions. The three towers collapsed within one hour.
Construction started in 1962, the shell structures were completed in 1964, and the pack installation finished in the first half of 1965. The towers were 125 meters tall with base diameter of 100 meters and with shell thickness of 125 millimeters.
This story tells you about the five collapse hypothesis considered by the Committee of Inquiry, the evidence used to discard some of them and how one hypothesis was considered as the most probable cause of the collapse.