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Uozu North Auxiliary Breakwater Lighthouse

Fl (2) Green 5s🇯🇵Uozu, JPOperational

Location & Light Range

About Uozu North Auxiliary Breakwater Lighthouse

This white concrete post lighthouse, built in 1984, stands 9.5 meters tall on an auxiliary breakwater south of Uozu's traditional harbor. The structure includes a 1-story concrete equipment shelter. Its focal plane is 12 meters above sea level, and it emits a green flash every 5 seconds. The lighthouse has a geographic range of 11 nautical miles. The site is open to the public, but the tower itself is closed.

Why it matters: This light clearly marks the end of the auxiliary breakwater, helping to prevent collisions in the waters near Uozu harbor, especially for local fishing vessels.

Light & Optic

Characteristic Signature
Fl (2) Green 5s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
5s
Raw Code
Fl G 5s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1984

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: A 9.5m concrete post attached to a square 1-story concrete equipment shelter, painted white.

Location

City
Uozu
Country
🇯🇵Japan
Region
Toyama Prefecture
Sea Region
Located at the end of an auxiliary breakwater at Uozu, south of the traditional harbor.
Latitude
36.8079°
Longitude
137.3907°

References & Identifiers

Nearest Port
Toyama(8.4 km)
ARLHS No.
JPN-1297
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Frequently Asked Questions

How do mariners identify Uozu North Auxiliary Breakwater Lighthouse at night?+
Uozu North Auxiliary Breakwater displays the characteristic Fl (2) Green 5s — 2 green flashes 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Uozu North Auxiliary Breakwater Lighthouse guide vessels into?+
Uozu North Auxiliary Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Uozu, Toyama at 0.9 NM to the N. Other ports served include Fushiki (12.6 NM W), Hiki (12.6 NM W), Toyama (12.6 NM W), Toyamashinko (13.4 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uozu North Auxiliary Breakwater Lighthouse still active and maintained?+
Yes, Uozu North Auxiliary 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 Uozu North Auxiliary Breakwater Lighthouse?+
Uozu North Auxiliary 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 Uozu North Auxiliary Breakwater Lighthouse?+
You can track vessels near Uozu North Auxiliary 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.