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Portland Bill Lighthouse is a functioning lighthouse on the Isle of Portland, Dorset, England. The lighthouse is located at the very south of the island, warning coastal traffic off of Portland Bill. The lighthouse and its boundary walls are Grade II Listed and have been since May 1993. As Portland's largest and most recent lighthouse, the Trinity House operated Portland Bill Lighthouse is distinctively white and red striped, standing at a height of . The tower is approximately 114 feet. The lighthouse was completed by 1906 and first shone out on 11 January 1906. Both Portland Bill and Chesil Beach are the locations of many wrecks of vessels that failed to reach Weymouth or Portland Roads. Portland Bill Lighthouse guides vessels heading for Portland and Weymouth through these hazardous waters as well as acting as a waymark for ships navigating the English Channel. ==History== Originally the two original lighthouses, now known as the Old Higher Lighthouse and Old Lower Lighthouse, operated as a pair at Portland Bill. They were first constructed in 1716, and both rebuilt in 1869. They continued to warn ships off Portland's coast until 1906, when both were decommissioned following the completion of the present lighthouse.〔(【引用サイトリンク】title=Portland – Three Lighthouses Walk )〕 At the turn of the 20th-century, Trinity House put forward plans for the building of a new lighthouse at Bill Point, to replace both of the lighthouses. A committee was formed in 1903 to work alongside Trinity House for the acquisition of the land at the Bill,〔(【引用サイトリンク】title=Portland Year Book )〕 which Trinity House paid £300 for. The design of the lighthouse was created by Sir Thomas Matthews. In October 1903 the builders Wakeham Bros. of Plymouth began work on the foundations, with the completion of the lighthouse being planned for September 1905.〔(【引用サイトリンク】title=Portland Year Book )〕 Chance & Co of Birmingham supplied and fitted the lantern.〔http://www.theoutdoorstore.co.uk/blog/wp-content/uploads/2010/08/route3-portlandbill.pdf〕 The lighthouse was completed in 1905, at a cost of £13,000, and the lamp was first lit on 11 January 1906.〔 On 18 March 1996 the lighthouse was demanned, and all monitoring and control of the station was transferred to the Trinity House Operations & Planning Centre in Harwich.〔(【引用サイトリンク】title=Portland Bill )〕 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「Portland Bill Lighthouse」の詳細全文を読む スポンサード リンク
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