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Toyama Kō Detached Breakwater Lighthouse

Fl (3) Green 12s🇯🇵Iwaki, JPOperational

Location & Light Range

About Toyama Kō Detached Breakwater Lighthouse

This concrete lighthouse, built in 1988, stands 9 meters tall at the extremity of a detached breakwater. Its cylindrical, white tower features a flared top and is connected to a small equipment shelter. The light has a focal height of 12 meters and emits a green flash every 12 seconds, visible for 11 nautical miles. It is located about 1.6 kilometers north of the Shioya Saki lighthouse, marking the end of the breakwater that shelters Toyama's north harbor. Access to the lighthouse is only possible by boat.

Why it matters: This lighthouse is essential for the safe navigation of ships entering and exiting Toyama's north harbor, specifically marking the critical end of the detached breakwater.

Light & Optic

Characteristic Signature
Fl (3) Green 12s
Flash Type
Flashing
Light Color
Green
Flash Count
3 flashes
Interval
12s
Raw Code
Fl G 12s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1988

References & Identifiers

Nearest Port
Ena(2.8 km)
ARLHS No.
JPN-1368

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower with a flared top, attached to a small equipment shelter

Location

City
Iwaki
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
Located at the end of a breakwater sheltering the north harbor of Toyama, Japan, about 1.6 km north of the Shioya Saki lighthouse.
Latitude
37.0115°
Longitude
140.9819°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Toyama Kō Detached Breakwater Lighthouse at night?+
Toyama Kō Detached Breakwater displays the characteristic Fl (3) Green 12s — 3 green flashes every 12 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 Toyama Kō Detached Breakwater Lighthouse guide vessels into?+
Toyama Kō Detached Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ena at 2.8 NM to the SSW. Other ports served include Nakanosaku (3.5 NM SSW), Yotsukura (5.7 NM N), Ishiwaki (6.1 NM SW), Onahama (6.7 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Toyama Kō Detached Breakwater Lighthouse still active and maintained?+
Yes, Toyama Kō Detached 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 Toyama Kō Detached Breakwater Lighthouse?+
Toyama Kō Detached 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 Toyama Kō Detached Breakwater Lighthouse?+
You can track vessels near Toyama Kō Detached 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.