Southhampton Shoal Light

Infobox Lighthouse


caption =
location = In seven feet, on south end of Southampton Shoals, northeast of Angel Island in San Francisco Bay, Southampton Shoals, California
coordinates = coord|37.88166667|N|122.4|W
modern characteristic = Iso R 6s (red light on a 6 second cycle) on white pole above platform
yearbuilt = 1905
yearlit = 1905
automated = yes
foundation = Wood piles
construction = Wood
ARLHS = USA-777

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).

History

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 Saint Francis Yacht Club of San Francisco. The building is now in used for lodging.

References

* [http://www.uscg.mil/hq/g-cp/history/WEBLIGHTHOUSES/LHCA.html Historic Light Station Information] USCG website
* [http://www.navcen.uscg.gov/pubs/LightLists/V6COMPLETE.pdf Light List, Volume VI, Pacific Coast and Pacific Islands] Pg 58 2007 COMDTPUB P16502.6, U.S. GOVERNMENT PRINTING OFFICE, WASHINGTON, DC, ISBN: 0-16-072993-9