Cape Decision Light
Encyclopedia
Cape Decision is a lighthouse
located on Kuiu Island
adjacent to Sumner Strait
in Southeast
Alaska.
lantern
placed on the Spanish Islands, just off the southern end of Kuiu Island. The lantern was proved ineffective and consequently Congress appropriated $59,400 in 1929 for a lighthouse and construction began in September of that year. However, weather and inadequate funds delayed the completion of the station until it finally became active in March 1932. The total cost ended up in excess of $150,000. The lighthouse became automated in 1974 and in 1989 fire damaged the tram
, dock
, boathouse
, hoist house, paint shed, and helipad
. The original third order Fresnel lens
was replaced in 1996 with solar powered aero beacon. The lens is on display in Clausen Museum in the nearby community of Petersburg
. The lighthouse was added to the National Register of Historic Places in 2005. It is currently an active aid to navigation
.
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 Kuiu Island
Kuiu Island
Kuiu Island is an island in the Alexander Archipelago in southeastern Alaska. It lies between Kupreanof Island, to its east, and Baranof Island, to its west. The island is long, and 10–23 km wide. It is nearly cut in two by Affleck Canal. It has of land area, making it the 15th largest...
adjacent to Sumner Strait
Sumner Strait
Sumner Strait is a strait in the Alexander Archipelago in the southeastern region of the U.S. state of Alaska. It is about long and wide, extending from the mouth of the Stikine River to Iphigenia Bay on the Gulf of Alaska, separating Mitkof Island, Kupreanof Island, and Kuiu Island on the north...
in Southeast
Alaska Panhandle
Southeast Alaska, sometimes referred to as the Alaska Panhandle, is the southeastern portion of the U.S. state of Alaska, which lies west of the northern half of the Canadian province of British Columbia. The majority of Southeast Alaska's area is part of the Tongass National Forest, the United...
Alaska.
History
The first attempt to light these waters was an acetyleneAcetylene
Acetylene is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in pure form and thus is usually handled as a solution.As an alkyne, acetylene is unsaturated because...
lantern
Lantern
A lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as 'torches', or as general light sources outdoors . Low light level varieties are used for decoration. The term "lantern" is also used more generically to...
placed on the Spanish Islands, just off the southern end of Kuiu Island. The lantern was proved ineffective and consequently Congress appropriated $59,400 in 1929 for a lighthouse and construction began in September of that year. However, weather and inadequate funds delayed the completion of the station until it finally became active in March 1932. The total cost ended up in excess of $150,000. The lighthouse became automated in 1974 and in 1989 fire damaged the tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...
, dock
Dock (maritime)
A dock is a human-made structure or group of structures involved in the handling of boats or ships, usually on or close to a shore.However, the exact meaning varies among different variants of the English language...
, boathouse
Boathouse
A boathouse is a building especially designed for the storage of boats, normally smaller craft for sports or leisure use. These are typically located on open water, such as on a river. Often the boats stored are rowing boats...
, hoist house, paint shed, and helipad
Helipad
Helipad is a common abbreviation for helicopter landing pad, a landing area for helicopters. While helicopters are able to operate on a variety of relatively flat surfaces, a fabricated helipad provides a clearly marked hard surface away from obstacles where a helicopter can safely...
. The original 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...
was replaced in 1996 with solar powered aero beacon. The lens is on display in Clausen Museum in the nearby community of Petersburg
Petersburg, Alaska
Petersburg is a city in Petersburg Census Area, Alaska, in the United States. According to 2009 Census Bureau estimates, the population of the city is 2,824 full time residents.- History :...
. The lighthouse was added to the National Register of Historic Places in 2005. It is currently an active aid to navigation
Navigation
Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks...
.