ribblehead |
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Ribblehead Viaduct had its first stone laid on 12 October 1870 and the last in 1874. It is 440 yards 400 m long, and 104 feet 32 m above the valley floor at its highest point, designed to carry two tracks. It is made up of twenty-four arches of 45 feet 14 m span, with foundations 25 feet 7.6 m deep. Every 6th pier is 50% thicker to mitigate against complete collapse should any pier fail. |
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