Harman Patil (Editor)

Cape Ann Light Station

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Area
  
50 acres (20 ha)

NRHP Reference #
  
71000355

Focal height
  
51 m

Opened
  
1860

Added to NRHP
  
7 October 1971

Built
  
1860

Designated NHLD
  
January 3, 2001

Height
  
38 m

Range
  
31,484 m

Nearest city
  
Cape Ann Light Station httpsuploadwikimediaorgwikipediacommonsthu

MPS
  
Lighthouses of Massachusetts TR (AD)

Similar
  
Cape Ann, Straitsmouth Island Light, Newburyport Harbor Front Ran, Dumpling Rocks Light, Broad Sound Channel I

The Cape Ann Light Station on Thacher Island, off Cape Ann in Rockport, Massachusetts is nationally significant as the last light station to be established under colonial rule and the first station in the United States to mark a navigational hazard rather than a harbor entrance. The current pair of lighthouses were built in 1861. They were both equipped with first order Fresnel lenses, which stood approximately 10 feet (3.0 m) high and weighed several tons (tonnes).

Contents

After being decommissioned in the early 1980s, the lens from the south tower was moved to the U.S. Coast Guard Museum at the United States Coast Guard Academy in New London, Connecticut. In 2013 a joint effort by the Cape Ann Museum and the Thacher Island Association brought the lens back to Cape Ann. The first order lens is now on display at the Cape Ann Museum in Gloucester, Massachusetts.

When these lights were built, there was no way to produce a flashing light and, occasionally mariners would confuse one light for another with disastrous results. The only way to create a distinction was to build more than one light. There were two lights at Plymouth and three at Nauset Beach. Gradually as it became possible to create flashes with a revolving lens system, the multiple lights were discontinued, so that while the south light is an active, Coast Guard maintained light, the north tower was discontinued in 1932. It was relighted as a Private Aid to Navigation in 1989. Both lights are now owned by the Town of Rockport and managed by the Thacher Island Association.

The station was added to the National Register of Historic Places as Twin Lights Historic District—Cape Ann Light Station on October 7, 1971, reference number 71000355. In 2001 they became the 9th light station to be recognized as a National Historic Landmark.

Cape Ann LightEdit

Cape Ann Light is the southern lighthouse that comprise the station.

Thacher Island North LightEdit

Thacher Island North Light is the northern most lighthouse that comprise the station.

NomenclatureEdit

  • The south light's official name in the US Coast Guard Light List is Cape Ann Light, number 1-295.
  • The north light's official name is Thacher Island North Light, number 1-305.
  • The National Historic Landmark listing name is Twin Lights Historic District—Cape Ann Light Station.
  • The lights are known locally as the Twin Lights or Thacher Island Lights.
  • References

    Cape Ann Light Station Wikipedia


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