Derby Wharf Lighthouse

Year Built

1871

Cost

$30,000

Type

Square

Height

25 feet

Location

Salem

Automated Year

1970s

First Lit

1871

Lens Type

Fifth order Fresnel lens 1871-1906 - 4th order 1906-1910 - 6th order 1910-1970s - Solar-powered optic (current)

Fog Signal

None

Year Deactivated

1977-1983

Color

White w/black lantern

Last Keeper - Date

William M. Osgood (1913 – 1917)

Description

A square brick tower with no attached keeper's quarters.

Brief History

•  A tall cast-iron chimney-pipe was fitted to the tower in 1886 for ventilation, and a ship’s side-light was also installed that year.
•  1906, The original 5th order lens was replaced by a fourth order lens.
•  1910, The lighthouse was re-classified as a harbor light. As a result, the 4th order lens was removed and a 6th order lens installed.
•  In 1977 The lighthouse was deactivated and deeded to the National Park Service.
•  1983, Friends of Salem Maritime had the light re-lit and declared a private aid to navigation.