Gibbs Hill Lighthouse

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Gibbs Hill Lighthouse
Gibbs Hill Lighthouse.jpg
LocationGibbs Hill, Bermuda, United Kingdom Edit this at Wikidata
Coordinates32°15′10″N 64°50′05″W / 32.252783°N 64.83475°W / 32.252783; -64.83475
Tower
Constructed1846 Edit this on Wikidata
Constructioncast iron, cast iron (tower) Edit this on Wikidata
Height36 m (118 ft) Edit this on Wikidata
Shapetapered cylindrical tower with balcony and lantern
Markingswhite Edit this on Wikidata
Light
Automated1964 Edit this on Wikidata
Focal height108 m (354 ft) Edit this on Wikidata
Lensfirst order Fresnel lens Edit this on Wikidata
Intensity500,000 candela Edit this on Wikidata
Range26 nmi (48 km; 30 mi) Edit this on Wikidata
CharacteristicFl W 10s Edit this on Wikidata

Built in 1844 by Cottam and Hallen of Cornwall Road, Lambeth; in their works within sight of Waterloo Bridge[1] Erected by the Royal Engineers, the Gibb's Hill Lighthouse is the taller of two lighthouses on Bermuda, and one of the first lighthouses in the world to be made of cast-iron. This is because at that time, steel still was not able to be bent. The optic consists of a Fresnel lens from 1904 revolving on steel bearings. However, for most of its history, the lens revolved on a bed of 1,200 pounds of mercury. While it is certainly not extremely tall in lighthouse standards, the hill that it stands on is one of the highest on the island. The light's focal plane on Gibbs Hill Lighthouse, therefore, is at 354 feet (108 m) above sea level. Airplanes can see its flashes from over 100 miles (160 km) away.

The lighthouse has 185 steps to the top in eight flights. Until 1964, most of the light was run by hand, but in June of that year, the whole system was automated and runs on electricity. Sixty-thousand people ascended the lighthouse in 1985, and it continues to be a popular tourist attraction.

A radar antenna for marine shipping was installed atop the lighthouse in 1987 supported on a steel space frame fixed at the original bolt locations. The radar and supporting frame were undamaged in September 2003 despite the oscillation of the tower during Hurricane Fabian. This movement caused two gallons of mercury to slop out of the lens support trough and put the light out of operation. The 1904 lens was repaired in 2004 with steel bearings to replace the mercury.

At the base of the tower is the Lighthouse Tea Room, a restaurant converted from the lighthouse keeper's former living quarters, where breakfast, lunch, and dinner are served daily.

See also[edit]

Sources[edit]

  • "bermudalighthouse.com". Gibbs Hill Lighthouse Bermuda. Archived from the original on March 1, 2001. Retrieved July 24, 2008.
  • Rowlett, Russ. "Lighthouses of Bermuda". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved July 24, 2008.
  • "Lighthouse Digest". Retrieved May 14, 2010.

References[edit]

  1. ^ "Cast-iron lighthouse" (Volume: 4, Supplement to Issue: 103, page 20). London: The Illustrated London News. 20 April 1844. p. 260. Retrieved 2 September 2021.

External links[edit]