Les Mamelles Lighthouse

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Les Mamelles Lighthouse
PhareMamelles4.JPG
The lighthouse in 2008
Les Mamelles Lighthouse
Location Ouakam, Dakar, Senegal
Coordinates 14°43′25.7″N17°30′06.6″W / 14.723806°N 17.501833°W / 14.723806; -17.501833 Coordinates: 14°43′25.7″N17°30′06.6″W / 14.723806°N 17.501833°W / 14.723806; -17.501833
Tower
Constructed1864
Height16 metres (52 ft)
Light
Focal height120 metres (390 ft)
Lenssecond order Fresnel lens  OOjs UI icon edit-ltr-progressive.svg
Range31 nautical miles (57 km; 36 mi)
Characteristic Fl W 5s

Les Mamelles Lighthouse (French : Phare des Mamelles) is a strategically important lighthouse situated near Cap Vert, the westernmost point of Africa, on the outskirts of Dakar the capital of Senegal. [1] Completed in 1864, it has been described as "one of the world's great lighthouses, guiding ships around the western tip of Africa". [1]

Contents

It is located on the higher of the Deux Mamelles, a pair of prominent hills in Ouakam, a suburban commune of Dakar, 4 km southeast of Almadies and 9 km northwest of Dakar on the Cap-Vert peninsula. [1] [2]

Description

Light in operation 2007 Phare en action.jpg
Light in operation 2007

The completely white lighthouse consists of a 16 metres (52 ft)) cylindrical tower attached to the seaward side of a two-storey building. The ground floor contains the machine room housing a generator and battery backup set. On the second floor is the watch room, which is used by the duty keepers during the night. A spiral staircase climbs up to the lantern room, containing the Barbier, Benard, et Turenne 2nd order Fresnel lens that floats in a bath of mercury. It is illuminated by a 1000 watt halogen lamp operating on alternating current at 220 volts. The light produces a white flash every five seconds at a focal height of 120 metres (390 ft). With a nominal range of 31 nautical miles (57 km; 36 mi), it is one of the most powerful in Africa. [1] [3]

Initially fuelled with oil, the light is now electrified, but remains manned as it is not automated.

The lighthouse is open to the public, with guided tours offered by the lighthouse keepers. Views from the lantern gallery provide panoramic views of the entire peninsula, including Almadies, N'Gor, Ouakam, and the African Renaissance Monument which is located on the second of the Deux Mamelles hills.

It is maintained by the lighthouses and beacons division (French : subdivision des Phares et Balises) of the Dakar Port authority. It is registered under the international Admiralty number D3004 and has the NGA identifier of 113-24392. [1] [3]

See also

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References

  1. 1 2 3 4 5 Rowlett, Russ. "Lighthouses of Senegal". The Lighthouse Directory. University of North Carolina at Chapel Hill . Retrieved 10 January 2017.
  2. Prostar Sailing Directions 2005 West Coast of Europe & Northwest Africa Enroute. ProStar Publications. 1 January 2005. pp. 225–. ISBN   978-1-57785-660-3.
  3. 1 2 List of Lights, Pub. 113: The West Coasts of Europe and Africa, the Mediterranean Sea, Black Sea and Azovskoye More (Sea of Azov) (PDF). List of Lights . United States National Geospatial-Intelligence Agency. 2015. p. 434.