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Usujiri (Usuziri Wan) North Breakwater Lighthouse

Fl Green 6s🇯🇵Hakodate, JPOperational

Location & Light Range

About Usujiri (Usuziri Wan) North Breakwater Lighthouse

This concrete lighthouse stands 9 meters tall on the north breakwater of Usujiri Bay in Hakodate, Hokkaido Prefecture, Japan. The structure consists of a square concrete post attached to a 1-story concrete equipment building, with the light positioned 11 meters above sea level. It emits a single green flash every 6 seconds, visible for approximately 10.7 nautical miles. The lighthouse is situated 0.2 kilometers from the nearest port, Usujiri. While the site is accessible to the public, the tower itself remains closed.

Why it matters: This lighthouse is essential for the safety of local fishing boats and other small craft that frequent Usujiri Bay, providing a clear navigational aid to enter the protected harbor. Its presence on the north breakwater is fundamental to the operational integrity and safety of Usujiri Port.

Light & Optic

Characteristic Signature
Fl Green 6s
Flash Type
Flashing
Light Color
Green
Interval
6s
Raw Code
Fl G 6s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Hakodate
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Usujiri Bay, marking the north breakwater
Latitude
41.9343°
Longitude
140.9409°

References & Identifiers

Nearest Port
Usujiri(0.2 km)
ARLHS No.
JPN-1006

Tower & Structure

Tower Height
9m
Tower Shape
square
Material
concrete

Structure: concrete post attached to a square 1-story concrete equipment building

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Usujiri (Usuziri Wan) North Breakwater Lighthouse at night?+
Usujiri (Usuziri Wan) North Breakwater displays the characteristic Fl Green 6s. 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Usujiri (Usuziri Wan) North Breakwater Lighthouse guide vessels into?+
Usujiri (Usuziri Wan) North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Usujiri at 0.2 NM to the ENE. Other ports served include Odoh (12.2 NM ESE), Todohokke (12.2 NM ESE), Toyoura (12.9 NM SSE), Date (13.5 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Usujiri (Usuziri Wan) North Breakwater Lighthouse still active and maintained?+
Yes, Usujiri (Usuziri Wan) North Breakwater 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.
What shipping routes pass near Usujiri (Usuziri Wan) North Breakwater Lighthouse?+
Usujiri (Usuziri Wan) North Breakwater Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Usujiri (Usuziri Wan) North Breakwater Lighthouse?+
You can track vessels near Usujiri (Usuziri Wan) North Breakwater 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.