Tokyo Bay Aqua-Line
東京湾アクアライン
A 15.1-kilometer expressway crossing Tokyo Bay via a massive undersea tunnel and a scenic bridge with a unique island stop.
What it is
- A major expressway connecting Kawasaki City in Kanagawa to Kisarazu City in Chiba.
- The route consists of a 9.5-kilometer tunnel and a 4.4-kilometer bridge.
- It features the longest undersea road tunnel currently found in Japan.
- Opened on December 18, 1997, as part of National Route 409.
What to see
- Umihotaru Parking Area, an artificial island located between the tunnel and bridge sections.
- Kaze no To, a circular artificial island designed for tunnel ventilation.
- Expansive views of Tokyo Bay from the bridge section and the parking area.
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Tokyo Bay Aqua-Line Open in Google Maps
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