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Saganoseki Kō Northern Harbor West Breakwater Lighthouse

Fl Red 3s🇯🇵Oita, JPOperational

Location & Light Range

About Saganoseki Kō Northern Harbor West Breakwater Lighthouse

This lighthouse, built in 1970, marks the western breakwater of Saganoseki's northern harbor. It stands 8.5 meters tall, constructed from red-painted concrete, with a focal height of 11 meters. The light characteristic is a single red flash every 3 seconds. This cylindrical concrete structure features a 1-story equipment room at its base. It is located at the end of a breakwater that extends from the north side of the Saganoseki peninsula, near the city of Oita in Oita Prefecture, Japan.

Why it matters: This light is important for guiding vessels entering and exiting the northern harbor of Saganoseki, serving as a clear marker for the western breakwater.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
11m
Geographic Range
10.7NM

Construction & History

Year Built
1970

References & Identifiers

Nearest Port
Saganoseki(0.2 km)
ARLHS No.
JPN-2329

Tower & Structure

Tower Height
8.5m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: A 8.5m concrete post attached to a square 1-story concrete equipment room, painted red.

Location

City
Oita
Country
🇯🇵Japan
Region
Oita Prefecture
Sea Region
Located at the end of a short breakwater at Saganoseki's northern harbor, on the north side of the Saganoseki peninsula.
Latitude
33.2520°
Longitude
131.8659°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Saganoseki Kō Northern Harbor West Breakwater Lighthouse at night?+
Saganoseki Kō Northern Harbor West Breakwater displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Saganoseki Kō Northern Harbor West Breakwater Lighthouse guide vessels into?+
Saganoseki Kō Northern Harbor West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Saganoseki at 0.5 NM to the SE. Other ports served include Usuki (8 NM SSW), Oita (10 NM W), Tsukumi (10.2 NM S), Morie (14.5 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Saganoseki Kō Northern Harbor West Breakwater Lighthouse still active and maintained?+
Yes, Saganoseki Kō Northern Harbor West 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 Saganoseki Kō Northern Harbor West Breakwater Lighthouse?+
Saganoseki Kō Northern Harbor West 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 Saganoseki Kō Northern Harbor West Breakwater Lighthouse?+
You can track vessels near Saganoseki Kō Northern Harbor West 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.