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The Humber Forts are two large fortifications in the mouth of the Humber estuary in northern England: Haile Sand Fort () and Bull Sand Fort (). ==History== The two forts were planned in 1914 to protect the entrance to the estuary. They stand above the water and have a diameter of . There was accommodation for 200 soldiers. Started in May 1915, they took more than four years to build and construction was not finished until December 1919. During the Second World War they were reactivated and modernised. The forts were regularly attacked by enemy aircraft. During this time, they installed a netting to prevent enemy submarines from travelling up the estuary to Hull or Grimsby. The forts were finally abandoned by the military in 1956.〔〔 Haile Sand Fort is the smaller of the two and is situated around the low-water mark between Cleethorpes and Humberston on the Lincolnshire coast.〔 Bull Sand Fort is from shore off Spurn Head. It is a 4-storey concrete building with of armour on the seaward side, and originally armed with four 6-inch guns.〔(【引用サイトリンク】title= Bull Sand Fort (TA371092) )〕 It was built with great difficulty as its sandbank is below low water. In 1987 it was given a Grade II Listed Building status.〔 In 1997 it was sold to the Streetwise Charitable Trust, who are restoring the fort for use as a drug rehabilitation facility.〔 〕 Administratively, it is within the East Riding of Yorkshire and civil parish of Easington, East Riding of Yorkshire. 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「Humber Forts」の詳細全文を読む スポンサード リンク
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