Hog Island Shoal Light, built in 1901, is a sparkplug lighthouse on a shoal off of Hog Island, Rhode Island.[2][3][4] It is located about 600 feet (180 m) southeast of the island, at the entrance to Mount Hope Bay. It stands on a circular concrete foundation set in about 10 feet (3.0 m) of water, and rising about 6 feet (1.8 m) above the water line. It was built to replace a light ship, and was the last light station formally established in the state.[5] The lighthouse was automated in 1964. In 1988 it was added to the National Register of Historic Places.[1] In 2006 the lighthouse was auctioned by the GSA as government surplus to a private buyer.

Hog Island Shoal Light

Location	Portsmouth, Rhode Island
Coordinates	41°37′56.3″N 71°16′23.6″W
Tower
Constructed	1886
Foundation	Cast iron & granite caisson
Construction	Cast iron
Automated	1964
Height	60 feet (18 m)
Shape	Sparkplug lighthouse
Markings	White conical tower on black cylindrical pier
Heritage	National Register of Historic Places listed place
Fog signal	Horn, 2 blasts every 30 seconds VHF radio activated
Light
First lit	1901
Focal height	54 feet (16 m)
Lens	5th order Fresnel lens 1901 (original), 9.8 inches (250 mm) (current)
Range	12 nautical miles (22 km; 14 mi)
Characteristic	Isophase White, 6 seconds
Hog Island Shoal Lighthouse
U.S. National Register of Historic Places
Hog Island Shoal Lighthouse as seen from a boat
Built	1901
MPS	Lighthouses of Rhode Island TR
NRHP reference No.	88000282 [1]
Added to NRHP	March 30, 1988

See also

• National Register of Historic Places listings in Newport County, Rhode Island

References

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