Alderney Lighthouse
| File:Mannez Lighthouse, Alderney - geograph.ci - 971 - by-Colin-Park.jpg
Alderney Lighthouse
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 Channel Islands
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| Location | Alderney English Channel |
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| Coordinates | Lua error in package.lua at line 80: module 'strict' not found. |
| Year first constructed | 1912 |
| Automated | 1997 |
| Construction | granite tower |
| Tower shape | conical frustum tower with balcony and lantern attached to one-story keeper's house |
| Markings / pattern | white tower with one broad black band |
| Height | 32 metres (105 ft) |
| Focal height | 37 metres (121 ft) |
| Intensity | 4,140 candela |
| Range | 12 nautical miles (22 km; 14 mi) |
| Characteristic | Fl W (4) 15s |
| Fog signal | siren: 3 blasts every 20 seconds whistle: 2 blasts ever 15 seconds |
| Admiralty number | A1536 |
| NGA number | 8300 |
| ARLHS number | GUE-004 |
| Managing agent | Trinity House |
The Alderney Lighthouse (also known as Mannez Lighthouse) is a stone lighthouse built on the North-East coast of the island of Alderney. It was constructed in 1912[1] to protect shipping from the dangerous waters of the Alderney Race and the numerous rocks surrounding Alderney.
Contents
History
The Alderney Lighthouse was constructed from granite in 1912 under the guidance of local businessman William Baron. It was electrified in 1976, and automated in 1997, when the last resident lighthouse keeper left. The Trinity House Central Planning Unit in Essex controls and maintains the lighthouse.[2][3]
Before its construction there were several notable wrecks off Alderney, including the Leros. It still functions as a lighthouse, but is open for guided tours during the summer months[4] when it is linked with the rest of the island by the Alderney Railway.
In March 2011 the lighthouse was downgraded. The light reduced from 24hrs with a 23 nautical miles (43 km; 26 mi) range to dark hours only with a 12 nautical miles (22 km; 14 mi).[5] This downgrade meant that the main beam was switched off, the lens shrouded and the light pulse now provided by a pair of LED lamps fixed to the sides of the tower.[6] The fog signal was stopped at the same time.[7]
See also
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References
- ↑ Mannez Lighthouse
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ The Alderney Journal- ‘Alderney Lighthouse’
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External links
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Wikimedia Commons has media related to Alderney lighthouse. |
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- Lighthouses completed in 1912
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