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Kawasaki City Lighthouses Lighthouse

Fl (3) White 10s🇯🇵Kawasaki, JPOperational

Location & Light Range

About Kawasaki City Lighthouses Lighthouse

This cylindrical tower, completed in 1997, stands on a large round platform in Tōkyō Bay, approximately 4.5 kilometers southeast of Kawasaki. It features a distinctive sail-like structure, one of two such towers. The light emits three white flashes every 10 seconds and has a geographic range of 15.3 nautical miles. While it functions as a navigational aid, its primary purpose is to serve as a ventilation tower for the Tōkyō Bay Aqua-Line.

Why it matters: The tower is essential for the ventilation of the Tōkyō Bay Aqua-Line's underwater tunnel section, which connects Kawasaki with Kisarazu and is the world's longest for automobiles.

Light & Optic

Characteristic Signature
Fl (3) White 10s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
10s
Raw Code
Fl(3) W 10s
Focal Height
30m
Geographic Range
15.3NM

Construction & History

Year Built
1997

References & Identifiers

Nearest Port
Tokyo(3.3 km)
Admiralty No.
M6421
NGA No.
5241
USCG No.
JCG-2155.51

Tower & Structure

Tower Height
24m
Tower Shape
cylindrical

Structure: sail-like structure, one of two, built on a large round platform

Location

City
Kawasaki
Country
🇯🇵Japan
Region
Kanagawa Prefecture
Sea Region
Located in Tōkyō Bay, about 4.5 km southeast of the Kawasaki waterfront, marking the center of the tunnel section of the Tōkyō Bay Aqua-Line, which connects Kawasaki to Kisarazu in Chiba prefecture.
Latitude
35.4912°
Longitude
139.8344°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kawasaki City Lighthouses Lighthouse at night?+
Kawasaki City Lighthouses displays the characteristic Fl (3) White 10s — 3 white flashes every 10 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Kawasaki City Lighthouses Lighthouse guide vessels into?+
Kawasaki City Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Higashi-Ogishima at 3.4 NM to the W. Other ports served include Kawasaki (4.1 NM WNW), Asahimachi (7 NM WNW), Tokyo (7.2 NM N), Kisarazu (7.6 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kawasaki City Lighthouses Lighthouse still active and maintained?+
Yes, Kawasaki City Lighthouses 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 Kawasaki City Lighthouses Lighthouse?+
Kawasaki City Lighthouses 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 Kawasaki City Lighthouses Lighthouse?+
You can track vessels near Kawasaki City Lighthouses 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.