fleet.wikisort.org - Lighthouse

Lime Point Lighthouse is a lighthouse in California, on the northern side of the narrowest part of Golden Gate strait.[1][2] The lighthouse sits at the base of a steep cliff, very near the North anchorage of the Golden Gate Bridge. It is built on a 100-foot (30 m) long rock spur named Lime Point.

Lime Point Light

Lime Point Light below the Golden Bridge
Location	Golden Gate Bridge San Francisco California United States
Coordinates	37.825447°N 122.478321°W / 37.825447; -122.478321
Tower
Constructed	1883 (fog signal station) 1900 (first)
Construction	brick building (first)
Automated	1961
Height	20 feet (6.1 m)
Shape	square tower (first) post with beacon (current)
Power source	solar power
Light
First lit	1961 (current)
Deactivated	1961 (first)
Focal height	15 feet (4.6 m) (current)
Characteristic	Fl W 5s. (current) F W (first)

History

The brick structure for the Lime Point Lighthouse was built in 1883[3] as a fog-bell signaling station. It was eventually fitted with coal powered 12-inch (300 mm) steam whistles. During operation, the facility included the fog signal building, a coal shed, water tank and a two-story keeper's quarters. The keeper's building was later upgraded to include a third floor.[4]

In 1900, a lens lantern was hung on the south-east corner of the fog signal building, at a height of 20 feet (6.1 m) above the water. In 1902, the coal-powered steam horn was modified to use crude oil to reduce operating costs and smoke pollution.[4]

Lime Point Lighthouse continued to operate after the completion of the Golden Gate Bridge since it remained an effective position for a light and fog horn, even though Fort Point Light, at the South end of the bridge was decommissioned. Lime Point was automated by the United States Coast Guard in 1961, and the three-story dwelling and other buildings were torn down, leaving only the fog signal building, which remains.[4]

See also

• List of lighthouses in the United States

References

External links

• Lime Point Lighthouse Page at www.us-lighthouses.com
• U.S. Geological Survey Geographic Names Information System: Lime Point Lighthouse

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