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The Seikan Tunnel is a 53.85 km (33.46 mi) dual-gauge railway tunnel in Japan, with a 23.3 km (14.5 mi) portion under the seabed of the Tsugaru Strait, ...
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The Seikan Tunnel, connecting Honshu, the main island of Japan, with the island of Hokkaido. With a length of 53.8 km (33.4 miles), it is the second longest ...

Seikan Tunnel

The Seikan Tunnel is a 53.85 km dual-gauge railway tunnel in Japan, with a 23.3 km portion under the seabed of the Tsugaru Strait, which separates Aomori Prefecture on the main Japanese island of Honshu from the northern island of Hokkaido. The... Wikipedia
Opened: March 13, 1988
Length: 33.4 miles
No. of tracks: Double track rail tunnel
Track gauge: Dual gauge: 1,435 mm (4 ft 8+1⁄2 in) standard gauge (Shinkansen); 1,067 mm (3 ft 6 in) narrow gauge (freight)

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.
Jun 18, 2020 · Japan's 53.85km Seikan railway tunnel passes beneath the Tsugaru Strait and connects the Aomori Prefecture on Honshu Island and the Hokkaido ...
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Dec 23, 2023 · ... tunnel - the Seikan Tunnel in Japan! The Seikan Tunnel, an engineering marvel of ...
Duration: 9:51
Posted: Dec 23, 2023
The Seikan Tunnel was completed in 1988 and has the second longest undersea tunnel component in the world. The tunnel is 54 kilometres in length with 23.3 ...
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There are two ways to get here, one is to drive but the best way of all is to get the train either from Aomori or Hakodate.
This tunnel is a part of a railway that runs between Aomori City and Hakodate City in just two and a half hours, and was named by combining the two characters ...
Feb 8, 2024 · The Seikan Tunnel in Japan is the longest tunnel with an underwater section in the world, measuring a total of 53.85 kilometers (33.4 miles) ...