Derby Wharf Light Explained

Coordinates:42.5166°N -70.8836°W
Yearbuilt:1871
Yearlit:1871
Automated:1970s
Yeardeactivated:1977–1983
Construction:Brick
Shape:Square
Marking:White Black
Lens:5th order Fresnel lens 1871-1906
4th order 1906-1910
6th order 1910-1970s
Solar-powered optic (current)
Characteristic:Fl R 6sec
Fogsignal:none
Module:
Derby Wharf Light Station
Embed:yes
Added:June 15, 1987
Mpsub:Lighthouses of Massachusetts TR
Refnum:87001466

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

It was built in 1871 and added to the National Register of Historic Places in 1987. The United States Coast Guard Light List description is "White square tower. Maintained by the U.S. Park Service". The actual light is above Mean High Water. Its red light is visible for .

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