A screw-pile lighthouse is a lighthouse which stands on piles that are screwed into sandy or muddy sea or river bottoms. The first screw-pile lighthouse to begin construction was built by the blind Irish engineer Alexander Mitchell. Construction began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. However, though its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit.
Bald Head Lighthouse, known as Old Baldy, is the oldest lighthouse still standing in North Carolina. It is the second of three lighthouses that have been built on Bald Head Island since the 18th century to help guide ships past the dangerous shoals at the mouth of the Cape Fear river.
Carysfort Reef Light is located approximately six nautical miles east of Key Largo, Florida. The lighthouse has an iron screw-pile foundation with a platform, and a skeletal, octagonal, pyramidal tower, which is painted red. The light is 100 feet (30 m) above the water. It was the oldest functioning lighthouse of its type in the United States until it was decommissioned in 2015, having been completed in 1852. Carysfort Reef is named for HMS Carysfort (1766), a 20-gun Royal Navy post ship that ran aground on the reef in 1770. The light currently installed is a xenon flashtube beacon. It was added to the National Register of Historic Places in 1984.
The Dry Tortugas Light is a lighthouse located on Loggerhead Key, three miles west of Fort Jefferson, Florida. It was taken out of operation in 2015. It has also been called the Loggerhead Lighthouse. It has been said to be "a greater distance from the mainland than any other light in the world."
The Dames Point Light marked an 8-foot-deep (2.4 m) shoal at a sharp bend in the St. Johns River in Florida that was a danger to ships heading to or from Jacksonville.
The Gasparilla Island Lights are on Gasparilla Island in Boca Grande, Florida. The Port Boca Grande Lighthouse is on the southern tip of Gasparilla Island, and marked the Boca Grande Pass entrance to Charlotte Harbor.
The Pensacola Light is a lighthouse at Pensacola Bay, in Florida. It is the third iteration of what was originally a lightship, the Aurora Borealis, and remains an aid to navigation.
The St. Johns Light is an active lighthouse in Jacksonville, Florida, marking the mouth of the St. Johns River. Built in 1954, it is located on Naval Station Mayport 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 in 2018.
Grand Traverse Light is a lighthouse in the U.S. state of Michigan, located at the tip of the Leelanau Peninsula, which separates Lake Michigan and Grand Traverse Bay. It marks the Manitou passage, where Lake Michigan elides into Grand Traverse Bay. In 1858, the present light was built, replacing a separate round tower built in 1852. The lighthouse is located inside Leelanau State Park, 8 miles (13 km) north of Northport, a town of about 650 people. This area, in the Michigan wine country, is commonly visited by tourists during the summer months.
The South Haven South Pierhead Light is a lighthouse in Michigan, at the entrance to the Black River on Lake Michigan. The station was lit in 1872, and is still operational. The tower is a shortened version of the Muskegon South Pierhead Light, and replaced an 1872 wooden tower. The catwalk is original and still links the tower to shore: it is one of only four that survive in the State of Michigan.
The Beaver Head Light is located high on a bluff on the southern tip of Beaver Island. Boats trying to navigate North on Lake Michigan need to carefully work their way between Beaver Island and Gray's Reef.
The Lynde Point Light or Lynde Point Lighthouse, also known as Saybrook Inner Lighthouse, is a lighthouse in Connecticut, United States, on the west side of the mouth of the Connecticut River on the Long Island Sound, Old Saybrook, Connecticut. The first light was a 35 feet (11 m) wooden tower constructed by Abisha Woodward for $2,200 and it was completed in 1803. A new lighthouse was eventually needed and a total of $7,500 was appropriated on July 7, 1838. Jonathan Scranton, Volney Pierce, and John Wilcox were contracted to build the new 65-foot (20 m) octagonal brownstone tower. It was constructed in 1838 and lit in 1839. The lighthouse was renovated in 1867 and had its keeper's house from 1833 replaced in 1858 with a Gothic Revival gambrel-roofed wood-frame house. In 1966, the house was torn down and replaced by a duplex house. The original ten lamps were replaced in 1852 with a fourth-order Fresnel lens, and with a fifth-order Fresnel lens in 1890. Lynde Point Lighthouse used whale oil until 1879 when it switched to kerosene. It was electrified in 1955 and fully automated by the United States Coast Guard in 1978. In 1990, it was added to the National Register of Historic Places and is significant for its "superior stone work in the tapering brownstone walls".
Smith Point Light is a caisson lighthouse in the Virginia portion of the Chesapeake Bay at the mouth of the Potomac River. It was added to the National Register of Historic Places in 2002.
Pointe aux Barques Lighthouse is an active lighthouse located in Huron County in the U.S. state of Michigan. It is located along the shores of Lake Huron on the northeastern tip of the Thumb. Originally constructed in 1848, it is one of the oldest active lighthouses in the state. The name is translated as "point of little boats" from the French language, which refers to the shallow coastline that poses a threat to larger boats.
The Rock of Ages Light is a U.S. Coast Guard lighthouse on a small rock outcropping approximately 2.25 miles (3.62 km) west of Washington Island and 3.5 miles (5.6 km) west of Isle Royale, in Eagle Harbor Township, Keweenaw County, Michigan. It is an active aid to navigation.
The New Dorp Lighthouse is a decommissioned lighthouse located in the New Dorp section of Staten Island, New York City. Funds for the lighthouse were approved by United States Congress on August 31, 1852 and the structure was completed in 1856. The lighthouse, built to serve as a rear range light to mark Swash Channel, was built by Richard Carlow, who also built the similar Chapel Hill and Point Comfort Range Lights in New Jersey around the same time. Ships sailing through Swash Channel were instructed to bring the New Dorp range light “in one” and steer towards the lights until the Chapel Hill Light came into view, which would then mark the channel past West Bank.
The Roanoke River Lighthouse is a historic, decommissioned lighthouse, located on the waterfront of Edenton, North Carolina. The lighthouse once stood in Albemarle Sound at the mouth of the Roanoke River, across the Sound from its current location. The only surviving screw-pile lighthouse in the state, it has since been moved twice, and a replica of a predecessor light has been erected at a fourth location.
The Ship Shoal Light is a screw-pile lighthouse located in the Gulf of Mexico southwest of the Isles Dernieres off the coast of Louisiana. It is currently abandoned.
The North Manitou Shoal Light, also known as the North Manitou Light or, locally, The Crib, is a lighthouse located in Lake Michigan, southeast of North Manitou Island in Leland Township, Michigan. When it was automated in 1980, it was the last manned offshore light in the Great Lakes. It was listed on the National Register of Historic Places in 2005.
The North Point Lighthouse Museum is a lighthouse built in 1888 in Lake Park on the East Side of Milwaukee in Milwaukee County, Wisconsin, United States to mark the entrance to the Milwaukee River. The lighthouse was added to the National Register of Historic Places in 1984. It was also added to the Library of Congress Historic American Buildings Survey as survey HABS WI-358.
