Eldred Rock Light

Infobox Lighthouse


caption =
location = Lynn Canal, Alaska
coordinates = coord|58|58|15|N|135|13|15|W|region:US_type:landmark
yearlit = 1905
automated = 1973
yeardeactivated =
foundation = Masonry
construction = Wood
shape = Octagonal
height = 56 ft (91 feet above sea level)
lens = Fourth order Fresnel lens
range = 8 nm
characteristic = Flashing white light every 6 seconds
admiralty = G6543
ARLHS = ALK-006
USCG = 6-23880Infobox_nrhp | name =Eldred Rock Lighthouse
nrhp_type =


caption =
nearest_city= Haines, Alaska
lat_degrees = 58
lat_minutes = 58
lat_seconds = 16
lat_direction = N
long_degrees = 135
long_minutes = 13
long_seconds = 7
long_direction = W
locmapin = Alaska
area =
built =1906
architect= Unknown
architecture= Octagon Mode
added = December 30, 1975
governing_body = COAST GUARD
refnum=75000332cite web|url=http://www.nr.nps.gov/|title=National Register Information System|date=2008-04-15|work=National Register of Historic Places|publisher=National Park Service] The Eldred Rock Light is an historic octagonal lighthouse adjacent to Lynn Canal in Alaska. It is the last of the ten lighthouses constructed in Alaska between 1902 and 1906. On December 30, 1975, it was added to the National Register of Historic Places as Eldred Rock Lighthouse.cite web|url=http://www.nr.nps.gov/|title=National Register Information System|date=2008-04-15|work=National Register of Historic Places|publisher=National Park Service]

History

The Lighthouse Board approved plans for a lighthouse on Eldred Rock in 1905 and hoped that the design would be completed before November and the coming of harsh winter weather. However, due to weather, the lighthouse was not finished until June 1, 1906. A fourth-order Fresnel lens was placed in the lantern room, near the top of the fifty-six foot lighthouse, at a focal plane of ninety-one feet. This unique lens consisted of two bull's-eye panels — one about four feet in diameter and the opposing one a smaller, 14-inch panel. A sheet of red glass was placed between the light source and the larger prism, causing the revolving lens to produce alternating red and white flashes. The light was automated by the United States Coast Guard in 1973 and downgraded to a minor light. The original lens was moved to the museum in Haines, Alaska in 1978.

References

External Links

* [http://www.uscg.mil/history/weblighthouses/LHAK.asp United States Coast Guard Lighthouses of Alaska]
* [http://www.lighthousefriends.com/light.asp?ID=828 Lighthouse Friends — Eldred Rock Lighthouse]
* [http://www.unc.edu/~rowlett/lighthouse/ak.htm Lighthouse Digest — Alaska]