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Chalmore Lock : ウィキペディア英語版 | Chalmore Lock Chalmore Lock was a lock and weir which operated between 1838 and 1883 on the River Thames in England near Wallingford, Oxfordshire.〔( ''The borough of Wallingford: Introduction and castle'', A History of the County of Berkshire: Volume 3 (1923), pp. 517-531 Date accessed: 14 April 2010 )〕 ==History== Chalmore Lock was built in 1838 by the Thames Navigation Commissioners at a place called Chalmore Hole between Cleeve Lock and Benson Lock. It was built as a summer or low water lock. For much of the time the lock was open at both ends and the fall was only 18 inches when the water level reached its lowest in summer. It was described at the time of construction as "a weir and two pairs of gates similar to pound gates to pass boats when the weir is shut in". Its use was demonstrated shortly after its construction when a barge stranded upstream in the shallows was set in motion within five minutes of closing the gates. The lock was provided with a lock keeper and tolls were exacted for its use. However it fell into disrepair, and the Thames Conservancy was anxious to remove it. Nevertheless from 1874 onwards, the inhabitants of Wallingford campaigned strongly to keep the lock fearing consequences to the town of its removal.〔Fred. S. Thacker ''The Thames Highway: Volume II Locks and Weirs'' 1920 - republished 1968 David & Charles pp197-200〕 In 1881 Thames Conservancy dredged the river below Wallingford Bridge at "enormous cost" and in the winter floating ice swept away much of the weir.〔(South Oxfordshire District Council & Vale of White Horse District Council - Strategic Flood Risk Assessment Appendices )〕 In 1883 the lock was finally removed.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Chalmore Lock」の詳細全文を読む
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