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Rockabill Lighthouse
In 1837 the Drogheda Harbour Commissioners proposed that a lighthouse be built on Rockabill, with the costs to be paid by tolls on the shipping using Drogheda harbour. In 1838, Trinity House, which was then in charge of lights in Ireland, declined the request. In 1853 however the Trinity Board reversed its decision and authorized the construction of the lighthouse. Construction began in 1855 under the supervision of the Burgess brothers, William and James, who were builders from Limerick. The lighthouse tower was built 1855–1860 of grante granite from the Mourne Mountains in County Down and local limestone from Milverton. The total cost of all buildings and equipment was £13,248.〔(Rockabill Lighthouse | Rockabill Lighthouse, SkerriesHomepage )〕 The light was placed into operation on 1 July 1860.〔〔
The focal plane of the lantern is above the sea.〔 The round lighthouse tower is built of granite and is high, including the lanternhouse and gallery.〔 The light tower is painted white with one broad black horizontal band.〔 In 1918, the station is also equipped with a fog horn.〔〔 A keeper's residence and other buildings are located at the station, which is operated by the Commissioners of Irish Lights. The lighthouse was automated in March 1989.〔
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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