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.
The Seven Foot Knoll Light was built in 1855 and is the oldest screw-pile lighthouse in Maryland. It was located atop Seven Foot Knoll in the Chesapeake Bay until it was replaced by a modern navigational aid and relocated to Baltimore's Inner Harbor as a museum exhibit.
The Thomas Point Shoal Light, also known as Thomas Point Shoal Light Station, is a historic lighthouse in the Chesapeake Bay on the east coast of the United States, and the most recognized lighthouse in Maryland. It is the only screw-pile lighthouse in the bay which stands at its original site. The current structure is a 1½ story hexagonal wooden cottage, equipped with a foghorn as well as the light.
The Lambert Point Light was a small screwpile lighthouse at Lambert's Point in Norfolk, Virginia; it was built in 1872.
Moreton Bay Pile Light was a pile lighthouse positioned at the mouth of Brisbane River, in Moreton Bay, Queensland, Australia, marking the entrance to the port of Brisbane. The light's early history was closely related to the dredging of the Brisbane River. It was established in 1884 as a result of a new channel that was cut, and relocated in 1913 due to another change in the channels. The structure was badly damaged by a barge in 1945 and finally destroyed when hit by a tanker in 1949. An automated light operated on the ruins until 1966–1967 when it was removed.
Solomons Lump Light is a lighthouse in the Chesapeake Bay, the abbreviated remains of a caisson light built in 1895. That structure replaced a screw-pile light built on the same spot in 1875, which in turn superseded the Fog Point Light.
The Choptank River Light was a screw-pile lighthouse located near Oxford, Maryland. In its second incarnation it was the only such light moved from another location in the Chesapeake Bay.
The Cobb Point Bar Light was a screw-pile lighthouse located in the Potomac River.
Greenbury Point Light was the name of two lighthouses in the Chesapeake Bay, both located at the mouth of the Severn River in Annapolis, Maryland.
Love Point Light was a screw-pile lighthouse in the Chesapeake Bay, off the northern end of Kent Island, Maryland.
The Janes Island Light was a screw-pile lighthouse located near Crisfield in the U.S. state of Maryland. Twice destroyed by ice, it was replaced in 1935 with an automated beacon.
New Point Comfort Light is a lighthouse in the Virginia portion of the Chesapeake Bay, United States, off the tip of the Middle Peninsula. Finished in 1804, it is the third-oldest surviving light in the bay, and the tenth-oldest in the United States.
Thimble Shoal Light is a sparkplug lighthouse in the Virginia portion of Chesapeake Bay, north of the Hampton Roads channel. The third light at this location, it is listed on the National Register of Historic Places.
The Old Plantation Flats Light was a lighthouse located in the Chesapeake Bay marking the channel to Cape Charles, Virginia.
The Windmill Point Light was a lighthouse located at the mouth of the Rappahannock River.
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.
The Bowlers Rock Light was a lighthouse located in the Rappahannock River in Virginia.
The Cat Island Light was a lighthouse located on Cat Island off the coast of Mississippi. Originally built to guide shipping through the Mississippi Sound, it was discontinued as traffic moved further south.
The New Canal Light or was first established in 1838 at the north end of the New Basin Canal which ran from Lake Pontchartrain to the Uptown or "American" section of the city which today is known as the New Orleans Central Business District. The canal was filled in about 1950, but the lighthouse remained on a jetty extending into the lake on a half mile long stretch of the canal that was left and is still used as a small boat and yachting harbor.
The Spit Bank Lighthouse close to Cobh in County Cork, Ireland is a screw-pile lighthouse which marks a shallow bank in the navigable channels of lower Cork Harbour. The platform was built by the blind Irish engineer Alexander Mitchell, with the lighthouse itself designed by George Halpin. In use since its completion between 1851 and 1853, and renovated as recently as 2013, the landmark structure marks the boundary of compulsory pilotage for large vessels entering the Port of Cork.
