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Fourteen Foot Shoal Light

Fourteen Foot Shoal Light
The light in 2001 (note the solar panels that provide the current power)
Map
LocationLake Huron, Michigan
Coordinates45°40′47.3″N 84°26′6″W / 45.679806°N 84.43500°W / 45.679806; -84.43500
Tower
Constructed1929
FoundationConcrete Crib
ConstructionReinforced concrete and steel
Automated1930
Height36 feet (11 m)[1]
Shapesquare building; frustum of a cone tower
MarkingsWhite with red trim
HeritageNational Register of Historic Places listed place Edit this on Wikidata
Fog signalHORN: 1 blast ev 15 s (2s bl)[4] Diaphone
Light
First lit1930
Focal height55 feet (17 m)[2][3]
LensFourth-order Fresnel lens[5] (original), 9.8-inch (250 mm) Tidelands acrylic optic Fresnel lens (current)
Range9 nautical miles (17 km; 10 mi)[4]
CharacteristicOcculting W 4 seconds Operates year round.
Fourteen Foot Shoal Light Station
NRHP reference No.05000742[6]
Added to NRHPJuly 27, 2005

The lighthouse at Fourteen Foot Shoal was named to note that the lake is only 14 feet (4.3 m) deep at this point, which is a hazard to navigation, ships and mariners.

This light is located at the northern end of Lake Huron, Michigan, US, where it is necessary for boats heading to Chicago to pass through a narrow strait and still avoid shallow water. The most common path is to go south of Bois Blanc Island (Michigan). In this channel, the Poe Reef Light marks the northern end of the safe channel and the Fourteen Foot Shoal light marks the southern side of the channel.

History

Fourteen Foot Shoal Light ca. 1950

The United States Lighthouse Service intended from the time of design that this light would be automated (possibly the first such instance)[7] and operated by radio control[8] from the nearby Poe Reef Light which is 3.5 miles (5.6 km) away; the keeper's house was never intended to be used as a residence.[9] In 1925 a temporary acetylene buoy was installed there and construction of the permanent light began in 1929 such that the light could begin operation in 1930.[10]

The original light was a fourth-order Fresnel lens.[11] The focal plane is 56 feet (17 m). It now has a 9.8-inch (250 mm) acrylic optic Fresnel lens, and assuming it is properly installed and adjusted, has a maximum visible range of 9 nmi (17 km).[12] A diaphone fog horn is attached.[2]

Current status and getting there

It is in U.S. Coast Guard District 9, and is still an active aid to navigation.[13]

In 2002 the crew of the Cutter USCGC Mackinaw (WAGB-83) painted and refurbished the light.[14]

The light has been added to the National Register of Historic Places; but is not on the state registry, although it was determined to be eligible by the Michigan State Historic Preservation Office.[15]

A private boat is, of course, the best way to see this light close up. Short of that, Nautical North Family Adventures of Cheboygan passes by it on daily shipwreck tours, Sheplers Ferry Service out of Mackinaw City offers periodic lighthouse cruises in the summer season. Its "Eastbound Tour" includes passes by Round Island Light, Bois Blanc Island and Light, Poe Reef Light and Fourteen Foot Shoal. Schedules and rates are available from Shepler's.[10][16] Boat narration is provided by the Great Lakes Lightkeepers Association.[17]

A distant view can be had from the Cheboygan Crib Light[18] and the Cheboygan State Park.[17]

On May 15, 2012, the National Park Service made the light available for ownership transfer under the National Historic Lighthouse Preservation Act.[19]

On September 30, 2017, the GSA ended its public auction transferring ownership to the Lake Huron Lighthouse Preservation Society Inc., a Michigan nonprofit organization managed by Jerry Persons and Joseph Niewiek.

References

  1. ^ "Seeing The Light - Lighthouse Tower Heights". September 18, 2000. Archived from the original on September 18, 2000.
  2. ^ a b National Park Service, Maritime Heritage Program, Inventory of Historic Lights, Fourteen Foot Shoal Light.
  3. ^ Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com. Archived from the original on August 30, 2008.
  4. ^ a b Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard.
  5. ^ Pepper, Terry. "Database of Original Lenses". Seeing the Light. terrypepper.com. Archived from the original on September 18, 2000.
  6. ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009. Archived from the original on July 25, 2008. Retrieved August 3, 2010.
  7. ^ "The Lighthouses of Lake Huron". Lighthouses R Us. Retrieved May 13, 2019.
  8. ^ Fourteen Foot Shoal Lighthouse at U.S. lighthouses.com.
  9. ^ Edin, Colt, and Wobser, David, Fourteen Foot Shoal Light Archived 2008-05-17 at the Wayback Machine at Boatnerd.com.
  10. ^ a b "Seeing The Light - Fourteen Foot Shoal Lighthouse". March 10, 2002. Archived from the original on March 10, 2002.
  11. ^ * Michigan Lighthouse Fund, Fourteen Foot Shoal Light. Archived 2011-07-27 at the Wayback Machine
  12. ^ 250 mm acrylic optic lens, Terry Pepper, Seeing the Light.
  13. ^ "Fourteen Foot Shoal Lighthouse - Sheboygan, MI". www.michiganlights.com.
  14. ^ Rowlett, Russ. "Lighthouses of the United States: Michigan's Eastern Lower Peninsula". The Lighthouse Directory. University of North Carolina at Chapel Hill.
  15. ^ National Park Service, Maritime Heritage Project, Inventory of Historic Lights, Fourteen Foot Shoal Light.
  16. ^ Sheplers Ferry Service. Archived 2008-05-17 at the Wayback Machine
  17. ^ a b West Michigan Tourist Association, Fourteen Foot Shoal Light. Archived 2011-07-26 at the Wayback Machine
  18. ^ "Fourteen Foot Shoal Lighthouse". LighthouseFriends.
  19. ^ "NATIONAL HISTORIC LIGHTHOUSE PRESERVATION ACT NOTICE OF AVAILABILITY – Fourteen Foot Shoal Light" (PDF). U.S. National Park Service.

Further reading

Quelle: https://en.wikipedia.org/wiki/Fourteen_Foot_Shoal_Light