Guard Island Light
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| Location: | Tongass Narrows entrance, Clarence Strait, Alaska |
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| Coordinates WGS-84 (GPS) |
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| Foundation: | Concrete |
| Construction: | Concrete |
| Year first lit: | 1924 |
| Automated: | 1969 |
| Tower shape: | White Square tower on oil house |
| Height: | 74 ft above sea level |
| Original lens: | Fourth Order Fresnel lens |
| Range: | 17 nm |
| Characteristic: | Flashing white 10s Emergency light (Fl W 6s) of reduced intensity when main light is extinguished. |
The Guard Island Light is a lighthouse adjacent to the Tongass Narrows and Clarence Strait in Alaska.
[edit] History
Construction of the Guard Island Lighthouse began in the summer of 1903 and was completed by September 1904. The 34-foot wooden tower housed a fourth order Fresnel lens that produced a fixed white light. However, the wood used for Guard Island Light Station, as well as for several other Alaskan lighthouses, soon deteriorated in the harsh conditions. By the 1920’s all the lighthouses except Eldred Rock were falling apart, and in 1922 Congress authorized the reconstruction of Guard Island Light. In 1924, the dilapidated light tower was replaced with a new single-story rectangular tower of reinforced concrete. The station was automated by the Coast Guard in 1969.
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