Halfway Rock Light
Encyclopedia
Halfway Rock Lighthouse is a lighthouse
Lighthouse
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

 located on a barren ledge in Casco Bay
Casco Bay
Casco Bay is an inlet of the Gulf of Maine on the southern coast of Maine, New England, United States. Its easternmost approach is Cape Small and its westernmost approach is Two Lights in Cape Elizabeth...

, Maine
Maine
Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

. The lighthouse tower, which has a height of 76 feet (23.2 m), and the attached ex-boathouse are all that remain, as the other buildings have been taken away in storms. The name "Halfway Rock" comes from the position of the rock which is half way between Cape Elizabeth
Cape Elizabeth, Maine
Cape Elizabeth is a town in Cumberland County, Maine, United States. The town is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area...

 and Cape Small, Maine, the southwest and northeast extremities of Casco Bay
Casco Bay
Casco Bay is an inlet of the Gulf of Maine on the southern coast of Maine, New England, United States. Its easternmost approach is Cape Small and its westernmost approach is Two Lights in Cape Elizabeth...

, which are about 18 nautical miles (33.3 km) apart.

Halfway Rock Light was added to the National Register of Historic Places
National Register of Historic Places
The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

 as Halfway Rock Light Station on March 14, 1988, reference number 88000150.

History

The need for a lighthouse on Halfway Rock first came to attention when, in the year 1835, a ship called Samuel ran aground on the rock during a storm. Because the ledge is only ten feet above high tide on a calm day, it becomes hard to see during storms. The cry for a lighthouse was ignored in Washington until, again, in 1861, a ship ran aground on Halfway Rock. This time, it was taken a bit more seriously. Construction began, but was delayed time and time again due to lack of supplies and lack of workmen. Ten years later, in 1871, the first light shone from Halfway Rock, as a new light had been completed. The keepers' quarters were originally inside the lighthouse tower. An 1888 boathouse contained additional living space for the keepers in its upper story.

The light was originally produced by a third-order Fresnel lens
Fresnel lens
A Fresnel lens is a type of lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses.The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design...

. Its characteristic was fixed white punctuated by a red flash once every minute. A fog bell was brought to the rock in 1887. It had a bit of success, but as technology kept coming out with new innovations, the bell was replaced with a fog "trumpet" in 1905. Since this was a hard lighthouse station to get to, in the mid-1930s, the Coast Guard began bringing a tender to bring the men into the mainland and back out to the rock. In addition to this, there was a helicopter landing pad in case of emergency. The light was automated in 1975 and the keepers were removed. The marine railway was destroyed by the 1991 Perfect Storm. The old Fresnel lens is now at the museum at the U.S. Coast Guard Academy in New London, CT; the active optic is a VRB-25
VRB-25
The VRB-25 is a lighthouse optical system designed and built by Vega Industries Ltd. in Porirua, New Zealand. It was originally designed in 1993-95 with the assistance of the United States Coast Guard to meet USCG requirements for a robust mechanism requiring minimum maintenance. It has become the...

. The attached wood building was badly damaged by storms in 2007. The lighthouse is now licensed to the American Lighthouse Foundation, and the organization is raising funds for its restoration.
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