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Uozu North Breakwater Lighthouse

Fl Green 4s🇯🇵Uozu, JPOperational

Location & Light Range

About Uozu North Breakwater Lighthouse

A 9.5-meter white concrete post rises from a square, single-story concrete equipment building at the termination of Uozu's north breakwater. This structure, established in 1938, displays a green light with a four-second period (Fl G 4s) at a 13-meter elevation. Its concrete build supports a light exhibiting an 11.3-nautical-mile visibility range. Public access is permitted to the grounds, while the tower remains inaccessible. The lighthouse is painted entirely white.

Why it matters: Serving as a navigation aid, this light marks the Uozu Harbor entry for ships navigating from Toyama Bay.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

First Lit
1938

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Color
white
Material
concrete

Structure: A 9.5m concrete post attached to a square 1-story concrete equipment shelter. The entire lighthouse is white.

Location

City
Uozu
Country
🇯🇵Japan
Region
Toyama Prefecture
Sea Region
end of the north breakwater at Uozu
Latitude
36.8205°
Longitude
137.3914°

References & Identifiers

Nearest Port
Toyama(8.7 km)
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Frequently Asked Questions

How do mariners identify Uozu North Breakwater Lighthouse at night?+
Uozu North Breakwater displays the characteristic Fl Green 4s. 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 Breakwater Lighthouse guide vessels into?+
Uozu North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Uozu, Toyama at 0.2 NM to the N. Other ports served include Fushiki (12.8 NM WSW), Hiki (12.8 NM WSW), Toyama (12.8 NM WSW), Toyamashinko (13.6 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Uozu North Breakwater Lighthouse still active and maintained?+
Yes, Uozu 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 Uozu North Breakwater Lighthouse?+
Uozu 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 Uozu North Breakwater Lighthouse?+
You can track vessels near Uozu 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.