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Dunkirk Lighthouse

Occ W 4s🇺🇸Upstate New York, USOperational

The Dunkirk Lighthouse, also called the Point Gratiot Light, stands 18.5 meters tall. Its focal height reaches 25 meters, providing a geographic range of 16 nautical miles. The tower, built of rubblestone encased in brick, has its upper two-thirds painted white, with the lower third left in its natural stone color. The lantern housing is red. This lighthouse emits an occulting white light. The current tower was first lit in 1875, following the establishment of the light in 1826. It was automated in 1960 and remains operational.

Why it matters: The Dunkirk Lighthouse was listed on the National Register of Historic Places as the Point Gratiot Lighthouse Complex. Its original third-order Fresnel lens, installed in 1857, is still in operation, which is a notable rarity among active lighthouses in the United States.

Background
The Dunkirk Lighthouse, also known as the Point Gratiot Light, is an active lighthouse located at Point Gratiot on Lake Erie in New York state. The lighthouse was established in 1826 and the current tower was first lit in 1875. The lighthouse was automated in 1960 and is still operational. The foundation is made out of dressed stone and the lighthouse is made out of rubblestone encased in brick. The tower is square-shaped with the upper two thirds in white and the lower third left natural and the lantern housing in red. The original lens is a third order Fresnel lens installed in 1857 in the original 1826 light and is still in operation. Its being still in use makes it a rarity. Only 70 such lenses are operational in the United States, 16 being on the Great Lakes of which two are in New York. At the entrance to the park property is the South Buffalo North Side Light, formerly located in Buffalo Harbor. It was added to the National Register of Historic Places as Point Gratiot Lighthouse Complex in 1979.
Characteristic Signature
Occ W 4s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Oc
Focal Height
25m
Geographic Range
16NM
Year Built
1826
Heritage Status
National Register of Historic Places listed place
NGA No.
LLNR 3410
Wikidata
Q5315389
OpenStreetMap
View on OSM →
Tower Height
18.5m
Tower Color
white
City
Upstate New York
Country
🇺🇸US
Latitude
42.4936°
Longitude
-79.3539°
Flag
Type
Name
Dist.
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How do mariners identify Dunkirk Lighthouse at night?+
Dunkirk displays the characteristic Occ W 4s — 1 white flash every 4 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area.
Which ports and harbors does Dunkirk Lighthouse guide vessels into?+
Dunkirk Lighthouse assists vessels approaching 5 nearby ports. The closest is Dunkirk at 0.6 NM to the E. Other ports served include WESTFIELD (14 NM SW), POINT BREEZE CAMP (14.2 NM NE), Mayville (16 NM SSW), STURGEON POINT (18.1 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dunkirk Lighthouse still active and maintained?+
Yes, Dunkirk Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Dunkirk Lighthouse?+
You can track vessels near Dunkirk Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.