White Shoal Light, Michigan

White Shoal Light
Map
LocationLake Michigan west of the Straits of Mackinac, Emmet County, Michigan
Coordinates45°50′32″N 85°8′7″W / 45.84222°N 85.13528°W / 45.84222; -85.13528
Tower
Foundationcofferdam/timber exposed Crib pier/concrete pier.
ConstructionTerra Cotta//steel/brick interior;[4] gunnite exterior; aluminium lantern
Automated1976
Height121 feet (37 m)[1]
ShapeOctagonal base on building; frustum of a cone.[5][6]
MarkingsWhite orig./Red and White barber pole tower, red lantern & base
HeritageNational Register of Historic Places listed place Edit this on Wikidata
Fog signalDiaphone originally,[7] HORN 1 blast every 30", 3" blast. Operates year round.
Racon"K" (– • –).[3]
Light
First lit1910
Focal height125 feet (38 m)[2]
Lens2nd order bivalve Fresnel Lens[8] (original), 7.5-inch (190 mm) Tideland Signal acrylic lens (current)
Intensity1.2 million candle power
Range17 nautical miles (31 km; 20 mi)
Characteristicflashing 5 sec
White Shoal Light Station
Nearest cityMackinaw City, Michigan
Area0.1 acres (0.040 ha)
ArchitectJudson, Major William V.
MPSU.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR
NRHP reference No.84001391[9]
Added to NRHPJuly 19, 1984

The White Shoal Light is a lighthouse located 20 miles (32 km) west of the Mackinac Bridge in Lake Michigan.[10][11] It is an active aid to navigation.[3] It is also the tallest lighthouse on the Great Lakes.

  1. ^ Pepper, Terry. "Database of Tower Heights". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
  2. ^ Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com. Archived from the original on 2008-08-30.
  3. ^ a b Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard.
  4. ^ "Historic Light Station Information and Photography: Michigan". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.
  5. ^ Wobser, David, Boatnerd.com, White Shoal Light. Archived July 11, 2011, at the Wayback Machine
  6. ^ Pepper, Terry. "Database of Lighthouse Types and Tower Shapesl Heights". Seeing the Light. terrypepper.com. Archived from the original on 2009-11-15.
  7. ^ National Park Service Maritime History Project, Inventory of Historic Light Stations, White Shoal Light.
  8. ^ Pepper, Terry. "Database of Original Lenses". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
  9. ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  10. ^ "White Shoal (Lake Michigan) Light". arlhs.com. Retrieved 20 May 2015.
  11. ^ "Lighthouses in the World List of Lights beginning with W". arlhs.com. Retrieved 20 May 2015.