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Great Duck Island Lighthouse

Fl W 10s🇺🇸Southern New Brunswick, USOperational

Location & Light Range

About Great Duck Island Lighthouse

This square masonry lighthouse stands 15 meters tall. Its exterior is painted white and features a red and white rectangular daymark. The light emitted is white. A foghorn on the structure sounds a 4-second blast every 60 seconds. The focal height of the light is also 15 meters.

Light & Optic

Characteristic Signature
Fl W 10s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
10s
Raw Code
Fl
Focal Height
15m
Geographic Range
18NM

Location

City
Southern New Brunswick
Country
🇺🇸US
Latitude
44.6845°
Longitude
-66.6932°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
15m
Tower Shape
square
Tower Color
white
Material
masonry

Structure: Square latticed tower, red and white rectangular daymark; 30. Horn: 1bl. ev. 60s (bl. 4s, si

References & Identifiers

Admiralty No.
H4174
NGA No.
11384
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Frequently Asked Questions

How do mariners identify Great Duck Island Lighthouse at night?+
Great Duck Island displays the characteristic Fl W 10s — 1 white flash every 10 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 Great Duck Island Lighthouse guide vessels into?+
Great Duck Island Lighthouse assists vessels approaching 5 nearby ports. The closest is Grand Manan at 4.7 NM to the WNW. Other ports served include Lubec (15.9 NM NW), Eastport (18.1 NM NW), Deer Island (20.6 NM NW), SWF & SON INC. (22.3 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Great Duck Island Lighthouse still active and maintained?+
Yes, Great Duck Island 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 Great Duck Island Lighthouse?+
You can track vessels near Great Duck Island 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.