North Manitou Shoal Light Station

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North Manitou Light
North Manitou Shoal Light Station (Leelanau County, Michigan).jpg
North Manitou Shoal Light Station is located in Michigan
North Manitou Shoal Light Station
Location Southeast of North Manitou Island in Leland Township, Michigan
Coordinates 45°1′12″N 85°57′24″W / 45.02000°N 85.95667°W / 45.02000; -85.95667Coordinates: 45°1′12″N 85°57′24″W / 45.02000°N 85.95667°W / 45.02000; -85.95667
Year first constructed 1935
Year first lit 1935
Automated 1980
Foundation Concrete crib
Construction Steel
Tower shape Square on square house
Markings / pattern White
Height 63 feet (19 m)[1]
Focal height 79 feet (24 m)
Original lens Fresnel lens
Current lens DCB-24
ARLHS number USA-554[2]
USCG number
North Manitou Shoal Light Station
Nearest city Leland Township, Michigan
Area less than one acre
Governing body Federal
MPS Light Stations of the United States MPS
NRHP Reference # 05000981[3]
Added to NRHP September 6, 2005

The North Manitou Shoal Light, also known as the North Manitou Light, is a lighthouse located in Lake Michigan, southeast of North Manitou Island in Leland Township, Michigan. When it was automated in 1980, it was the last manned offshore light in the Great Lakes.[4] It was listed on the National Register of Historic Places in 2005.[3]

History[edit]

In 1907, the Lighthouse Board recommended that the shoal north of North Manitou Island be marked with a lightship.[5] In 1910, Lightship No. 56 was stationed at the site, and continued there until 1927, when it was replaced by Lightship No. 89. In 1934, Lightship No. 103 was transferred to the location, and stayed until the permanent structure was built the next year.[6]

In 1923, the Lighthouse Board first proposed replacing the lightships with a permanent station.[6] However, funds were not allocated for the purpose until 1933, when they were made available through the Public Works Administration. In 1935, the permanent steel light station was constructed on the shoal in 26 feet (7.9 m) of water. The station was originally manned by a three-man crew, but in 1980 the light was automated, and the original Fresnel lens replaced.

Description[edit]

The North Manitou Shoal Light Station is a white square steel structure atop a concrete crib.[1] The crib measures 65 feet (20 m) on a side, and supports a 62 feet (19 m) square superstructure rising 20 feet (6.1 m) above the water.[6] A two-story steel building 37 feet (11 m) square, containing diesel generators and living quarters,[4] sits atop the superstructure, and a three-story steel tower containing the light caps the whole. The steel portion is 63 feet (19 m) tall and the light is positioned 79 feet (24 m) above the water.

References[edit]

  1. ^ a b "Inventory of Historic Light Stations - Michigan Lighthouses - North Manitou Shoals Light". National Park Service. Retrieved February 8, 2014. 
  2. ^ "North Manitou Shoal Light". Amateur Radio Lighhouse Society. Retrieved January 13, 2014. 
  3. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. 
  4. ^ a b "Shoal light built in 1935 to warn ships around North Manitou". Leelanau Enterprise. 
  5. ^ "Lighthouses: Sleeping Bear Dunes National Park". National Park Service. Retrieved February 8, 2014. 
  6. ^ a b c "North Manitou Shoal, MI". Lighthouse Friends.com. Retrieved January 8, 2014.