Execution Rocks Lighthouse

Execution Rocks Lighthouse is a historic offshore lighthouse standing on a rocky reef in the western end of Long Island Sound, approximately one mile from the shoreline between Sands Point and New Rochelle. The active navigational light marks one of the most hazardous areas near the entrance to the East River and helps guide vessels traveling toward New York Harbor.

Completed in 1849 and first lit in 1850, Execution Rocks Lighthouse is one of the most recognizable maritime landmarks in the western Long Island region. Its isolated location, distinctive granite tower and dark historical legends have made it one of the most intriguing lighthouses on Long Island, although access to the island is limited and conditions can change.

A Lighthouse on a Dangerous Reef

The Execution Rocks reef consists of shallow rocks and submerged hazards located in the center of the channel between the North Shore of Long Island and the Westchester County shoreline. Before the lighthouse was built, the reef presented a serious danger to commercial, military and passenger vessels navigating between Long Island Sound, the East River and New York Harbor.

The name Execution Rocks is associated with several historical stories, including an unverified tradition that people were chained to the rocks and left to drown at low tide. Other explanations connect the name with the many ships that were wrecked on the dangerous reef. The lighthouse’s documented purpose, however, was to warn mariners about the rocks and improve navigation through the western Sound.

Construction and Early Operation

In March 1847, the United States Congress appropriated $25,000 for the construction of a lighthouse at Execution Rocks. The station was designed by architect Alexander Parris, and construction was completed in May 1849. The light began operating in 1850.

The conical tower was constructed of granite with a brick lining and placed on a substantial stone and timber foundation. The original tower was approximately 60 feet tall, with its focal plane positioned about 62 feet above the water. A fourth-order Fresnel lens was installed in 1856 to produce a more visible and effective navigational signal.

The Keeper’s Quarters

Execution Rocks Lighthouse originally required resident keepers to maintain the light, operate the station and monitor the surrounding waters. In 1868, attached keeper’s quarters were added, giving the keeper and family more living space than the cramped accommodations inside the tower.

The station survived difficult conditions in the Sound, including storms, heavy seas and a serious fire in December 1918. The fire damaged the tower, oil house, windows, woodwork and other parts of the station, while destroying the engine house and machinery. Repairs allowed the lighthouse to continue serving mariners for many more years.

Automation and Current Navigational Role

Execution Rocks Lighthouse was automated in 1979, ending the era of resident lighthouse keepers. The original Fresnel lens was replaced by a modern lantern, and the United States Coast Guard continues to identify the station as an operational aid to navigation.

The lighthouse displays a flashing white light approximately every 10 seconds. Its white tower with a brown band remains visible from portions of the North Shore, from the water and from elevated locations around western Long Island Sound.

National Register of Historic Places

Execution Rocks Light Station was added to the National Register of Historic Places in 2007. The designation recognizes the lighthouse’s architectural importance, its role in the history of navigation and its connection to the maritime development of Long Island Sound and New York Harbor.

The station is historically significant because it retains the character of a nineteenth-century offshore light station while continuing to function as a navigational landmark. Its remote location also illustrates the difficulty of preserving historic structures exposed to storms, saltwater, erosion and strong tidal currents.

Can the Public Visit Execution Rocks Lighthouse?

Execution Rocks Lighthouse is not a conventional public park and cannot be reached by car or on foot. Public access has historically been restricted, although organized boat tours and special visits have been offered at various times by preservation organizations. Availability, departure locations and permission requirements may change, so visitors should confirm current arrangements before planning a trip.

Boaters may view the lighthouse from the surrounding waters, but the reef contains navigational hazards and strong currents. Anyone approaching the station should follow all Coast Guard regulations, maintain a safe distance from the structure and avoid landing without authorization.

Execution Rocks and the North Shore

Execution Rocks Lighthouse is closely connected to the maritime landscape surrounding Sands Point, Port Washington, Manhasset Bay and the western end of Long Island Sound. The area includes historic estates, waterfront communities, yacht clubs, marinas and former shipping routes that helped shape the history of Nassau County.

The lighthouse can also be viewed in relation to other historic lights in the region, including Sands Point Lighthouse and Stepping Stones Lighthouse. Together, these stations formed part of the network of navigational aids that helped vessels move safely through the crowded and hazardous waters surrounding Long Island and New York Harbor.

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Execution Rocks Lighthouse

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Key Facts & Details

Feature	Details
Official name	Execution Rocks Light Station
Common name	Execution Rocks Lighthouse
Type	Active offshore lighthouse and navigational aid
Location	Western Long Island Sound, between Sands Point and New Rochelle
Nearby Long Island community	Sands Point
County association	Nassau County
Waterway	Long Island Sound
Congressional appropriation	$25,000 approved in March 1847
Construction completed	May 1849
First lit	1850
Architect	Alexander Parris
Tower height	Approximately 60 feet
Focal plane	Approximately 62 feet above the water
Construction materials	Granite with brick lining on a dressed-stone and timber foundation
Tower shape	Conical
Daymark	White tower with a brown band around the middle
Original lens	Fourth-order Fresnel lens installed in 1856
Keeper’s quarters	Added in 1868
Automation	Automated in 1979
Light characteristic	Flashing white light approximately every 10 seconds
Current status	Operational aid to navigation maintained under United States Coast Guard authority
Historic designation	Listed on the National Register of Historic Places in 2007
Public access	Restricted offshore site; organized tours or special visits may be available at certain times
Related landmarks	Sands Point Lighthouse and Stepping Stones Lighthouse
Official historical source	U.S. Coast Guard Historian’s Office
Long Island Lighthouses	How many lighthouses are on Long Island?

Execution Rocks Lighthouse remains one of the most important historic navigational landmarks in western Long Island Sound. Built to warn ships away from a dangerous reef, the 1849 station continues to operate while preserving the history of the keepers, mariners and communities connected to this part of the North Shore.

Although its offshore location limits ordinary public access, Execution Rocks Lighthouse can be viewed from the water and from selected shoreline locations around Sands Point, Port Washington and New Rochelle. Its distinctive tower, difficult setting and long maritime history make it one of the most memorable lighthouses in the Long Island region.