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The One Fathom Bank Lighthouse ((マレー語:Rumah Api One Fathom Bank) or ) refers to two offshore lighthouses in the Strait of Malacca, specifically, on a shoal within Malaysian waters, dubbed One Fathom Bank (''Permatang Sedepa''), off the coast of the state of Selangor. The One Fathom Bank station originally consisted of a single screw-pile lighthouse that has been replaced twice over the course of its 147 years in service, but saw the addition of a newer, larger counterpart close by that superseded duties of the older lighthouse in 1999. The lighthouses have since been referred to as the "old" One Fathom Bank Lighthouse and the "new" One Fathom Bank Lighthouse; the old One Fathom Bank Lighthouse is retained but is currently inactive. As neither lighthouse is located on any body of dry land, both locations are only accessible by boat. While both sites of the lighthouses are open, their towers remain off-limits.〔 == History == First reported during the mid-19th century by John Turnbull Thomson, a hydrographic surveyor, One Fathom Bank is a shoal located in the Strait of Malacca, between North Sands and South Sands, southwest from the Klang Delta in Selangor.〔 The sandbank had apparently emerged during low tide, with water depths of less than two and a half fathoms (4.6 m).〔 The solidity of One Fathom Bank encouraged the British to build a lighthouse at the site in 1852 to prevent ships from running aground on the notoriously dangerous shoal, and to provide other navigational needs.〔〔 The first lighthouse was later replaced by a screw-pile lighthouse in 1874, followed by a third iteration in 1907, a concrete-pile lighthouse that was completed at the cost of £246,963.31 and remains standing to date.〔 The third lighthouse remained operational until the completion of a fourth lighthouse in 1999, which was erected parallel to the old lighthouse some away at a cost of RM18 million to provide greater security.〔〔 While the older lighthouse has been deactivated and abandoned, efforts were made by the Department of Marine and related authorities, such as the Department of Public Works and the then Department of Museums and Antiquities, to restore it in 2004 and 2005 due to its historical and architectural value.〔〔 After the founding of Port Swettenham (Port Klang) in 1893, both lighthouses also acted as a beacon on the approach to the port.〔 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「One Fathom Bank Lighthouse」の詳細全文を読む スポンサード リンク
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