Southampton Shoal Light
|Location||Southampton Shoals |
San Francisco Bay
|Year first constructed||1905 (first)|
|Year first lit||n/a (current)|
|Construction||wooden tower (first)|
metal pole (current)
|Tower shape||square tower with balcony and lantern on a 3-storey keeper's house (first)|
pole with beacon on platform (current)
|Markings / pattern||white tower, black lantern (first)|
white pole (current)
|Tower height||10 metre|
|Focal height||10 metre|
|Original lens||5th order Fresnel lens (on display at the Angel Island Interpretive Centre)|
|Characteristic||Fl W 4s. (first)|
Iso R 6s. (current)
|Managing agent||St. Francis Yacht Club (first)|
United States Coast Guard (current)
Southampton Shoal is a former lighthouse site in California, United States. A platform sits at the southwest edge of Southampton Shoals, northeast of Angel Island in the San Francisco Bay. The platform is all that remains of the original structure and supports an automated bell which chimes every ten seconds and red light mounted on a pole, which flashes on for three seconds and is then dark for 3 seconds in each six second cycle (Iso R 6s).
Southampton Shoal Lighthouse was a square building built on a platform supported by wooden piers. It was built and first lit in 1905 with a fifth order Fresnel lens. The original lens is on display at the Angel Island Interpretive Center.
In 1960, the structure was moved to Tinsley Island which is a private island in the San Joaquin River delta close to Stockton. The island is owned by the St. Francis Yacht Club of San Francisco. The building is now in use for lodging.
- Light List, Volume VI p. 46
- Southampton Shoal The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 17 June 2016
- "Historic Light Station Information and Photography: California". United States Coast Guard Historian's Office. 2013-09-16. Archived from the original on 2017-05-01. Retrieved 2014-04-25.
- Light List, Volume VI, Pacific Coast and Pacific Islands (PDF). Light List. United States Coast Guard. 2014. p. 46. ID COMDTPUB P16502.6
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