Block Island Southeast Light

Block Island Southeast Light is a lighthouse located on Mohegan Bluffs at the southeastern corner of Block Island, Rhode Island. It was designated a U.S. National Historic Landmark in 1997 as one of the most architecturally sophisticated lighthouses built in the United States in the 19th century.

Block Island Southeast Light
The Block Island Southeast Light in May, 2015
LocationSouth East Light Road, New Shoreham, Rhode Island
Coordinates41°9′12.3″N 71°33′7.7″W
Tower
Constructed1875
FoundationGranite / Concrete / Brick
ConstructionRed brick
Automated1990
Height52 feet (16 m)
ShapeOctagonal pyramidal tower attached to dwelling
MarkingsNatural with black lantern
HeritageNational Historic Landmark, National Register of Historic Places listed place, America's Most Endangered Places 
Fog signalHorn, 1 every 30 sec
Light
First lit1875
Deactivated1990-1994
Focal height261 feet (80 m)
Lens1st order Fresnel lens
Range20 nautical miles (37 km; 23 mi)
Characteristic
Fl Green 5 sec
Block Island South East Light
U.S. National Register of Historic Places
U.S. National Historic Landmark
ArchitectUS Light House Board; Tynan, T.H.
Architectural styleGothic
NRHP reference No.90001131 (NRHP)
97001264 (NHL)
Significant dates
Added to NRHPAugust 6, 1990
Designated NHLSeptember 24, 1997
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