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Minamiheizawa Breakwater Lighthouse

Fl Green 3s🇯🇵Oga, JPOperational

Location & Light Range

About Minamiheizawa Breakwater Lighthouse

Also known as: Minami-Hirasawa

This lighthouse is a round, cylindrical concrete tower with a flared top, standing 11 meters high. Its light is situated 16 meters above the water. Exhibiting a green light, it flashes once every three seconds. The lighthouse is positioned at the seaward end of the Minamiheizawa Breakwater, a structure extending 1.1 kilometers from the shore near Oga city. Its geographic range is 12.2 nautical miles, marking the extremity of the breakwater.

Why it matters: This light is essential for mariners navigating the waters around the Minamiheizawa Breakwater, providing a critical visual aid for safe entry and exit from the protected harbor area. Its green light specifically delineates the breakwater's extremity, preventing collisions and guiding vessels clear of the structure.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Oga
Country
🇯🇵Japan
Region
Akita Prefecture
Sea Region
Located on the Minamiheizawa (Minami-Hirasawa) Breakwater in Japan.
Latitude
39.8532°
Longitude
139.8612°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Material
concrete

Structure: round cylindrical concrete tower with a flared top

References & Identifiers

Nearest Port
Funakawa(1.1 km)
ARLHS No.
JPN-1039
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Frequently Asked Questions

How do mariners identify Minamiheizawa Breakwater Lighthouse at night?+
Minamiheizawa Breakwater displays the characteristic Fl Green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Minamiheizawa Breakwater Lighthouse guide vessels into?+
Minamiheizawa Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Funakawa at 1.1 NM to the NNE. Other ports served include Akitafunagawa (1.4 NM N), Funagawa (1.9 NM NNW), Akita (10.6 NM ESE), Noshiro (22.1 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Minamiheizawa Breakwater Lighthouse still active and maintained?+
Yes, Minamiheizawa 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 Minamiheizawa Breakwater Lighthouse?+
Minamiheizawa 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 Minamiheizawa Breakwater Lighthouse?+
You can track vessels near Minamiheizawa 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.