Derby Wharf Light Station is a historic lighthouse on Derby Wharf in Salem, Massachusetts that is within the Salem Maritime National Historic Site.[2][3]

It was built in 1871 and added to the National Register of Historic Places in 1987.[3][1] The United States Coast Guard Light List[2] description is "White square tower. Maintained by the U.S. Park Service". The actual light is 25 feet (7.6 m) above Mean High Water. Its red light is visible for 4 nautical miles (7.4 km; 4.6 mi).

History

The Light Station was originally built in 1871 and used an oil lamp shining through a Fresnel lense. For many years, Derby Wharf Light had one of only 17 sixth-order Fresnel lenses in the United States. Today, the light is solar powered, and the light is a red flash every six seconds.

See also

References

  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.
  2. ^ a b Light List, Volume I, Atlantic Coast, St. Croix River, Maine to Shrewsbury River, New Jersey (PDF). Light List. United States Coast Guard. 2010. p. 83.
  3. ^ a b "Historic Light Station Information and Photography: Massachusetts". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.


Allikas: https://en.wikipedia.org/wiki/Derby_Wharf_Light
No tags for this post.