Ilha de Santana Lighthouses
Farol da Ilha de Santana
LocationIlha de Santana, Maranhão, Brazil
Coordinates2°16′16″S 43°37′26″W / 2.271°S 43.624°W / -2.271; -43.624
First lighthouse
Constructed1831 Edit this on Wikidata
Constructionmasonry (tower) Edit this on Wikidata
Height31 m (102 ft) Edit this on Wikidata
First lit1 June 1831 Edit this on Wikidata
Deactivated1861 Edit this on Wikidata
Range18 nmi (33 km; 21 mi) Edit this on Wikidata
Second lighthouse
Constructed1861 Edit this on Wikidata
Constructionmasonry (tower) Edit this on Wikidata
Height26 m (85 ft) Edit this on Wikidata
Shapesquare Edit this on Wikidata
First lit26 January 1961 Edit this on Wikidata
Deactivated1883 Edit this on Wikidata
Third lighthouse
Constructed1883 Edit this on Wikidata
Constructioncast iron Edit this on Wikidata
Height42 m (138 ft) Edit this on Wikidata
Shapeskeletal pyramidal tower with central cylinder atop a 2-storey cylindrical cast iron base
First lit2 December 1883 Edit this on Wikidata
Deactivated1964 Edit this on Wikidata
Focal height46 m (151 ft) Edit this on Wikidata
Lenssecond order Fresnel lens Edit this on Wikidata
Ilha de Santana Lighthouse
Constructed1964 Edit this on Wikidata
Constructionconcrete Edit this on Wikidata
Height49 m (161 ft) Edit this on Wikidata
Shapetapered cylindrical tower with balcony and lantern
Markingswhite (tower), white (lantern) Edit this on Wikidata
OperatorBrazilian Navy Edit this on Wikidata
RaconB Edit this on Wikidata
First lit1 July 1964 Edit this on Wikidata
Focal height57 m (187 ft) Edit this on Wikidata
Range31 nmi (57 km; 36 mi) (white), 25 nmi (46 km; 29 mi) (red) Edit this on Wikidata
CharacteristicAl Fl(2) W (1) R 51s Edit this on Wikidata
Brazil no.BR-0804

Ilha de Santana Lighthouse (Portuguese: Farol da Ilha de Santana) is an active lighthouse on the namesake island located at the east entrance of the Baía de São Marcos, Maranhão, Brazil

Description

The first lighthouse was lit on June 1, 1831, though the construction has been authorized since June 1822.[1] The masonry tower was built in three years, close to the beach in a place without stone; it was 31 metres (102 ft) high and the lantern was equipped with a rotating catoptrics lens with a range of 18 nautical miles (33 km; 21 mi). Soon after the lighthouse was threatened by the sea erosion and the efforts made to save it were unsuccessfully.

It was decided to build a new lighthouse far away; it had a quadrangular shape and a height of 26 metres (85 ft). The original rotating system was transferred on the new lighthouse which was lit on January 26, 1961. Years later the sea erosion was damaging the second lighthouse, therefore a third lighthouse was built. It was built a cast iron pyramidal skeletal tower prefabricated in England by Armstrong, Mitchell and Company. The new white painted lighthouse was lit on December 2, 1883, and the lantern was equipped with a 2nd order of Fresnel lens, built by Chance Brothers, emitting a white and red light. With the passing of the years the cast iron tower underwent a progressive deteriorating, caused by the rust, and the construction of a new lighthouse was essential.

The current cylindrical tower was built in concrete, with balcony and lantern by side the former; it has a height of 49 metres (161 ft) and was lit on July 1, 1964.[2] The lantern and the optical device were moved from the old lighthouse to the new one. The cast iron tower was partially dismantled and few years ago was completely demolished. The lighthouse emits two long alternate white flashes and one red every 51 seconds visible up to 31 nautical miles (57 km; 36 mi) for the white light and 25 nautical miles (46 km; 29 mi) for that red. The lighthouse is managed by Brazilian Navy and is identified by the country code number BR-0804.[3]

See also

List of lighthouses in Brazil

References

  1. Rowlett, Russ. "Lighthouses of Northern Brazil". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 10 July 2017.
  2. List of Lights, Pub. 110: Greenland, The East Coasts of North and South America (Excluding Continental U.S.A. Except the East Coast of Florida) and the West Indies (PDF). List of Lights. United States National Geospatial-Intelligence Agency. 2016.
  3. "Santana". Farois Brasileiros. Archived from the original on 26 August 2016. Retrieved 10 July 2017.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.