Thunder Bay Island Light

1832

LAKE HURON LIGHTS

USCG PHOTO

LIGHTHOUSES OF MICHIGAN

This light sits on an island which is four miles offshore.  It's incredible that such an isolated light was manned until 1980 when it was automated.

LOCATION: East shore of island, SE end of bay, West side of Lake Huron

CURRENT TOWER LIT: 1832

CURRENT USE: Active aid to navigation

AUTOMATED: 1980

FOUNDATION MATERIALS: Dressed Stone / Timber

LIGHTHOUSE MATERIALS: Brick

TOWER SHAPE: Conical --- 40 ft. tall

COLOR(S)/MARKINGS/PATTERN: White with black lantern

ORIGINAL LENS: Fourth Order, Fresnel / now has a modern airport-type beacon

NEAT CHARACTERISTICS: The height and shape of the tower were modified in 1857 to make it 50 ft. tall.  This was done by encasing the upper 14 feet of the old tower with a new brick wall and extending that brickwork an additional 10feet.