The St. Johns Light is an active

lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mar ...

Jacksonville, Florida Jacksonville is a city located on the Atlantic coast of northeast Florida, the most populous city proper in the state and is the largest city by area in the contiguous United States as of 2020. It is the seat of Duval County, with which the ...

, marking the mouth of the

St. Johns River The St. Johns River ( es, Río San Juan) is the longest river in the U.S. state of Florida and its most significant one for commercial and recreational use. At long, it flows north and winds through or borders twelve counties. The drop in eleva ...

. Built in 1954, it is located on

Naval Station Mayport Naval Station Mayport is a major United States Navy base in Jacksonville, Florida. It contains a protected harbor that can accommodate aircraft carrier-size vessels, ship's intermediate maintenance activity (SIMA) and a military airfield (Admi ...

in the Mayport area. It was erected to replace a lightship, which itself replaced the still-standing Old St. Johns River Light. It is the fourth lighthouse built at the mouth of the St. Johns since 1830. It was listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

in 2018.

History

The St. Johns Light was erected in 1954 on the grounds of

, about south of the mouth of the

. It is the fourth lighthouse to have stood at Mayport. The first lighthouse was erected in 1830, after the U.S. purchase of

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

, but it was built too close to the water and had to be demolished just three years later. A second lighthouse was erected about a mile upriver in 1835. However, shifting

sand dune A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, fl ...

s often made the light difficult to discern from sea, and by 1853 its foundation had been so affected by erosion that plans were made to replace it. It was abandoned, but its ruins could still be seen in the early 20th century.Wood, p. 326. In 1858 the Old St. Johns River Light was erected. In order to avoid the problems of its predecessors, it was constructed away from the shoreline and was substantially taller. It was in service for over 70 years until finally being decommissioned in 1929. That year it was replaced by the St. Johns Lightship (LV-84), moored about offshore of the river's mouth. The oldest surviving building in Mayport, the Old St. Johns River Lighthouse was placed on the

in 1976 and restored in 1980.Duval County listings
a
National Register of Historic Places
In 1954 the current St. Johns Light was built to replace the lightship. It was automated in 1967. The structure is made of

concrete Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most wi ...

, poured in one continuous operation. It has never had a traditional lantern, but had an airway-beacon style light from the beginning until 1998 when it was replaced by a Vega

VRB-25 The VRB-25 is a lighthouse optical system designed and built by Vega Industries Ltd. in Porirua, New Zealand. It was originally designed in 1993-95 with the assistance of the United States Coast Guard to meet USCG requirements for a robust m ...

system. The structure is tall and can be seen for . The east wing was renovated by the

United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mult ...

Northeast Florida Chapter of the Chief Petty Officers Association (CPOA). On September 26, 2014 it was dedicated to retired BMCM John G. Cathey for his hard work dedication and commitment to the Northeast Florida CPOA.

History

Notes

References

Further reading