Frankfort Light

Frankfort North Breakwater Lighthouse.
Location	Frankfort, Michigan
Coordinates	44°37′50″N 86°15′08″W / 44.6306°N 86.2522°W / 44.6306; -86.2522
Tower
Foundation	Two-story metal over breakwater
Construction	Steel clad frame
Height	67 feet (20 m)
Shape	Pyramidal tower
Markings	White with Black markings, Parapet and Lantern
Heritage	National Register of Historic Places listed place
Light
First lit	1873
Focal height	72 feet (22 m)
Lens	5th order Fresnel lens (original), 4th order Fresnel lens (current)
Range	16 nautical miles (30 km; 18 mi)[1]
Characteristic	F W
Frankfort North Breakwater Light
U.S. National Register of Historic Places
Nearest city	Frankfort, Michigan
Area	less than one acre
Architect	Bureau of Lighthouses, 9th District
MPS	Light Stations of the United States MPS
NRHP reference No.	05000983[2]
Added to NRHP	September 6, 2005

The Frankfort Light is a lighthouse located on the north breakwater in the harbor in Frankfort, Michigan. The current light was constructed in 1912 and placed on the National Register of Historic Places in 2005.

The harbor at Frankfort was first dredged in 1859.^[3] A series of improvements were begun in 1867, with piers completed in 1873. The original Frankfort North Breakwater lighthouse, an enclosed timber-framed pyramid beacon, was built in 1873 at the end of this long wooden pier with an elevated catwalk which led to the shore; the light was first lit on October 15, 1873. A fog signal was added in 1893.

In 1912, a new square steel pyramidal tower was constructed on the North Pier.^[3] The light was electrified in 1919. In the 1920s, construction began on a pair of concrete breakwaters at the harbor entrance. Construction was complete by the early 1930s. With the earlier piers now rendered obsolete, plans were made to shorten them. In 1932,^[4] the 1912 lighthouse was removed from the north pier and relocated at the head of the north breakwater. The original pyramid style lighthouse was increased in size by placing it on top of a new two-story addition.

In 2010, the US Coast Guard excessed the lighthouse, and in 2011 ownership was transferred to the city of Frankfort.^[4]

The current breakwater light in Frankfort is located at the head of the north breakwater. It is a square steel pyramidal tower; the original 1912 lighthouse stands 44 feet (13 m) tall. The light is placed atop a 25-foot (7.6 m) tall square steel base. The cast iron lantern room, surrounded by a gallery, originally contained a fifth order Fresnel lens that was upgraded to a fourth order Fresnel lens. Other structures associated with the light include a radio beacon and a United States Coast Guard station.^[5]

Wikimedia Commons has media related to Frankfort Lighthouse.

• Aerial photos, Frankfort Lighthouse, marinas.com.
• National Historic Lighthouse Preservation Act FACT SHEET (March 7, 2005).

v t e Lighthouses in Michigan
Main: List of lighthouses in the United States
Northern Upper Peninsula	Au Sable Big Bay Point Copper Harbor Copper Harbor Front Range Crisp Point Eagle Harbor Eagle Harbor Range Lights Eagle River Fourteen Mile Point Grand Island East Channel Grand Island Harbor Rear Range Grand Island North Grand Marais Range Lights Granite Island Gull Rock Huron Island Isle Royale Manitou Island Marquette Breakwater Outer Marquette Harbor Mendota (Bete Grise) Munising Front Range Munising Rear Range Ontonagon Ontonagon Harbor West Breakwater Portage River (Jacobsville) Passage Island Presque Isle Harbor Breakwater Light Rock Harbor Rock of Ages Sand Hills Sand Point Light (Baraga) St. Martin Island Stannard Rock Thunder Bay Island Whitefish Point
Southern Upper Peninsula	DeTour Reef Lansing Shoals Manistique East Breakwater Martin Reef Menominee Pier Minneapolis Shoal Naubinway Island Peninsula Point Poverty Island Sand Point Seul Choix Squaw Island St. Martin Island
St. Mary's River	Frying Pan Island Pipe Island Point Iroquois Round Island Light (St. Mary's River) Six Mile Point Range Rear Winter Point Range Front
Portage River/Ship Canal	Keweenaw Waterway Lower Entrance Keweenaw Waterway Upper Entrance Portage Lake Rouleau Point Range Front and Rear Lights
Straits of Mackinac	Bois Blanc McGulpin Point Old Mackinac Point Round Island Round Island Passage St. Helena Island Wawatam
Western Lower Peninsula	Beaver Island Harbor Beaver Island Head Big Sable Point Cedar River Charlevoix Charlevoix South Pier Frankfort Frankfort South Range Grand Haven North Pierhead Grand Haven South Pierhead Entrance Grand Haven South Pierhead Inner Grand Traverse Grays Reef Holland Harbor Ile Aux Galets Little Sable Point Little Traverse Ludington Manistee Pierhead Manning Memorial Mission Point Mission Point (1933) Muskegon Breakwater Muskegon Pier North Manitou Shoal Pentwater North Pierhead Pentwater South Pierhead Point Betsie Portage Lake South Fox Island South Haven South Manitou Island St. Joseph North Pier Inner St. Joseph North Pier Outer Waugoshance White River White Shoal
Eastern Lower Peninsula	Alpena Caseville Harbor Charity Island Cheboygan Crib Cheboygan River Front Range Detroit River Fort Gratiot Forty Mile Point Fourteen Foot Shoal Gibraltar Gravelly Shoal Harbor Beach Lake St. Clair Mariners Memorial Middle Island Miller Memorial New Presque Isle Old Presque Isle Peche Island Rear Range Poe Reef Pointe aux Barques Port Austin Port Sanilac Saginaw Bay Saginaw River Rear Range Spectacle Reef St. Clair Flats Front and Rear Range Light Sturgeon Point Tawas Point Thunder Bay Island Tri-Centennial Light of Detroit William Livingstone Memorial Windmill Point
Historical (lost) lights	Au Sable North Pierhead Belle Isle Clinton River Ecorse Ecorse Range Rear Gibraltar Grassy Island Grassy Island North Channel Range Lights Grassy Island South Channel Range Lights Grosse Ile North Channel Range Lights Grosse Ile South Channel Range Lights Harwood Point East Range Front Kalamazoo River Mama Juda Mama Juda Range Front Manistee Main Middle Lake George Monroe Pier New Buffalo North Manitou Island Saginaw Bay Sand Beach North Entrance East Squaw Point St. Mary's River Lower Range Front Vidal Shoals Channel Range Front and Rear Lights Windmill Point Range Front and Rear Lights
Related	Lightship Huron List of lifesaving stations in Michigan Wixom Lake, Musselman Island lighthouse