Iwawada Kō Lighthouse
Location & Light Range
About Iwawada Kō Lighthouse
Also known as: #Iwawada Kō
Established in 1963, the Iwawada Kō lighthouse stood on the main east breakwater of Iwawada harbor in Onjuku. The structure was a 9-meter cylindrical concrete post, painted red, with a square, single-story concrete equipment room at its base. It emitted two red flashes every 8 seconds, with a geographic range of 10.4 nautical miles. In 2009, the original lighthouse was demolished. It was replaced by a light situated on a steel post, continuing to serve the harbor's entrance. The site of the former lighthouse remains open to the public.
Why it matters: This light provided navigational guidance for vessels entering and exiting Iwawada harbor.
Light & Optic
- Flash Type
- Fixed
- Light Color
- Red
- Flash Count
- 2 flashes
- Interval
- 8s
- Raw Code
- F.Fl(2) R 8s
- Focal Height
- 10m
- Geographic Range
- 10.4NM
Construction & History
- Year Built
- 1963
Significant events: Demolished in 2009 and replaced by a light on a steel post
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
Tower & Structure
- Tower Height
- 9m
- Tower Shape
- cylindrical
- Tower Color
- red
- Material
- concrete
Structure: A 9m cylindrical concrete post with a square 1-story concrete equipment room at its base, painted red.
Location
- City
- Onjuku
- Country
- 🇯🇵Japan
- Region
- Chiba Prefecture
- Sea Region
- Located on the main (east) breakwater of Iwawada harbor in Onjuku, about 8 km northeast of Katsuura.
- Latitude
- 35.1784°
- Longitude
- 140.3658°
References & Identifiers
- Nearest Port
- Katsuura, Chiba(3.4 km)
- ARLHS No.
- JPN-1316
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