Following several decades of planning and construction, the tunnel opened on 13 March 1988. The Seikan Tunnel forms part of the standard-gauge Hokkaido Shinkansen as well as the …

Seikan Tunnel, undersea tunnel linking Japan’s main island of Honshu with the northern neighboring island of Hokkaido. The Seikan Tunnel is the second longest tunnel in the world, …

Mar 13, 2018 · The 53.85-kilometer tunnel connecting the northern tip of Honshu with Hokkaido, of which a 23.30-km portion runs undersea, has been serving as a major transport artery ever …

Feb 11, 2025 · One of its most impressive engineering marvels is the Seikan Tunnel, a 53.85 km (33.46 miles) long railway tunnel that stretches beneath the Tsugaru Strait, connecting Honshu …

Japan's Seikan Tunnel, a railway engineering marvel, connects Honshu and Hokkaido, showcasing impressive undersea tunnel construction. Its integration into the Hokkaido …

6 days ago · Step inside the incredible Seikan Tunnel (Japan), the world’s longest undersea railway tunnel, stretching 53.85 km with 23.3 km under the sea. This video takes you from raw …

Today, the Seikan Tunnel is the longest railroad tunnel in the world at 33.4 miles in length, 14.3 miles of which lie under the Tsugaru Strait. Three stories high and 800 feet below the sea, the...

The Seikan Submarine Tunnel was opened in March 1988 and runs beneath the seabed of the Tsugaru Strait, which separates the southern edge of Hokkaido from Aomori Prefecture on the …

By total length, the Seikan Tunnel is the world’s longest undersea tunnel, surpassing even the Channel Tunnel (although the latter has a longer undersea section). [3] It is also the second …

The Seikan Tunnel is an engineering marvel located beneath the Tsugaru Strait in Japan. It serves to connect Aomori Prefecture on the main island of Honshu with the northern island of …