Lime Point Light
Lime Point Lighthouse is a lighthouse in California, on the northern side of the narrowest part of Golden Gate strait. 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 ft long rock spur named Lime Point.
 Lime Point Light below the Golden Bridge | |
  California  Lime Point Light (California)  Lime Point Light (the United States) | |
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| Location | Golden Gate Bridge San Francisco California United States |
|---|---|
| Coordinates | 37.825447°N 122.478321°W |
| Year first constructed | 1883 (fog signal station) 1900 (first) |
| Year first lit | 1961 (current) |
| Automated | 1961 |
| Deactivated | 1961 (first) |
| Construction | brick building (first) |
| Tower shape | square tower (first) post with beacon (current) |
| Tower height | 20 feet (6.1 m) |
| Focal height | 15 feet (4.6 m) (current) |
| Light source | solar power |
| Characteristic | Fl W 5s. (current) F W (first) |
| Admiralty number | G4072 |
| ARLHS number | USA-434 |
| USCG number | 6-4270[1] [2] |
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 steam whistles. During operation, the facility included the fog signal building, a coal shed, water tank, and a two-story keeper's quarters. The keepers building 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 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 to this day.[4]
References
- Lime Point The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 10 June 2016
- California Historic Light Station Information & Photography United States Coast Guard. Retrieved 10 June 2016
- "Marin County Points of Interest". noehill.com. NoeHill. Retrieved 7 December 2017.
- "Lime Point Lighthouse". LighthouseFriends. Lighthousefriends.com. Retrieved 7 December 2017.
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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Wikimedia Commons has media related to Lime Point Light. |
