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Duluth Harbor South Breakwater Inner Lighthouse

Fl W 5s🇺🇸Minnesota, USOperational

Location & Light Range

About Duluth Harbor South Breakwater Inner Lighthouse

Constructed in 1900, this lighthouse stands 21 meters tall with a focal height matching its overall structure. Its emission is a single white light. The structure is part of the Duluth Harbor South Breakwater Inner facilities. Its operational status ensures continued navigation assistance.

Why it matters: This lighthouse is designated as a heritage site.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Focal Height
21m

Construction & History

Year Built
1900
Heritage Status
2

References & Identifiers

Admiralty No.
LLNR 15860
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
21m

Location

City
Minnesota
Country
🇺🇸US
Latitude
46.7787°
Longitude
-92.0920°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Duluth Harbor South Breakwater Inner Lighthouse at night?+
Duluth Harbor South Breakwater Inner displays the characteristic Fl W 5s — 1 white flash every 5 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 Duluth Harbor South Breakwater Inner Lighthouse guide vessels into?+
Duluth Harbor South Breakwater Inner Lighthouse assists vessels approaching 5 nearby ports. The closest is Duluth at 0.8 NM to the SSW. Other ports served include Superior (2.1 NM SSW), TWO HARBORS (22.3 NM NE), Floodwood (34.5 NM WNW), Hoyt Lakes (44.3 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Duluth Harbor South Breakwater Inner Lighthouse still active and maintained?+
Yes, Duluth Harbor South Breakwater Inner 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 Duluth Harbor South Breakwater Inner Lighthouse?+
You can track vessels near Duluth Harbor South Breakwater Inner 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.