Hillsboro Inlet Light
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|Location||north side of Hillsboro Inlet|
|Year first constructed||1907|
|Year first lit||1907|
|Tower shape||octagonal skeletal with cylinder|
|Focal height||136 feet (41 m)|
|Original lens||second-order bivalve Fresnel lens|
|Range||28 nautical miles (52 km; 32 mi)|
White, Flashing every 20 seconds
Hillsboro Inlet Light Station
|Area||3 acres (1.2 ha)|
|NRHP Reference #||79000661|
|Added to NRHP||February 16, 1974|
Hillsboro Inlet Lighthouse is a lighthouse that was located on the north side of Hillsboro Inlet, midway between Fort Lauderdale and Boca Raton, in Hillsboro Beach, Florida. The light marks the northern limit of the Florida Reef, an underwater coral formation on the lower east coast of the state.
In 1901, the United States Lighthouse Establishment persuaded Congress to authorize the construction of a lighthouse in the dark area between Jupiter Inlet Light and Fowey Rocks Light. In the second half of the 20th century, this inlet became an increasingly busy waterway. Hillsboro Inlet Light is considered one of the most powerful lights in the world with a beam that can be seen for 28 nautical miles (52 km; 32 mi).
The octagonal iron pyramidal tower was built at Russel Wheel & Foundry Co in Detroit, Michigan, moved to the Hillsboro Inlet Light Station in 1906, and lit on March 7, 1907. Its second-order bivalve Fresnel lens emits a light measuring 5.5 megacandelas and is placed 136 feet (41 m) above sea level. Automated in 1974, the light acts both as a coastal navigational aide and as a support to local water traffic.
The light was relit in 2000, with 400 pounds (180 kg) of mercury replaced[clarification needed] by a specially designed ball-bearing assembly.
In 2003, Hillsboro Inlet Light was honored with a 37¢ U.S. postage stamp.
- Crompton, Samuel Willard. "The Lighthouse Book." Barnes and Noble Books, New York, 1999. ISBN 0-7607-1135-6.
- "Historic Light Station Information and Photography: Florida". United States Coast Guard Historian's Office. Retrieved July 28, 2008.
- McCarthy, Kevin M. (1990) //Florida Lighthouses. University of Florida Press ISBN 0-8130-0993-6
- The Hillsboro Lighthouse Preservation Society - Lighthouse information and 2 minute video with aerial view, internal views and description of lens.
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