Tōkyō East Passage (Tōkyō Gate) West Breakwater Lighthouse
Iso Red 4s🇯🇵Koto, JPOperational
Location & Light Range
About Tōkyō East Passage (Tōkyō Gate) West Breakwater Lighthouse
A round, white concrete tower, 16 meters in height, was completed in 1976. This structure, housing a lantern and gallery, has its light set 3 meters above sea level. It projects an isophase red light that flashes every 4 seconds, visible for 1 nautical mile. Situated in Koto, the lighthouse is 4.1 kilometers from Tokyo's port.
Why it matters: This lighthouse defined the western edge of the Tōkyō Gate, a primary waterway for ships entering and leaving Tokyo Bay, a major global shipping hub.
Light & Optic
Characteristic Signature
Iso Red 4s
- Flash Type
- Isophase
- Light Color
- Red
- Interval
- 4s
- Raw Code
- Iso R 4s
- Focal Height
- 3m
- Light Range
- 12NM (22.2 km)
- Geographic Range
- 1NM
Construction & History
- Year Built
- 1976
References & Identifiers
- Nearest Port
- Tokyo(4.1 km)
- Admiralty No.
- M6427.4
- NGA No.
- 5276
- ARLHS No.
- JPN-1473
Tower & Structure
- Tower Height
- 16m
- Tower Shape
- cylindrical
- Tower Color
- white
- Material
- concrete
Structure: round white concrete tower with lantern and gallery
Location
- City
- Koto
- Country
- 🇯🇵Japan
- Sea Region
- Tōkyō East Passage (Tōkyō Gate) West Breakwater, Japan
- Latitude
- 35.6100°
- Longitude
- 139.8244°
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