The Seikan Tunnel connects the Japanese islands of Honshu and Hokkaido and is 33 miles long.
The world's longest canal tunnel is the Rove Tunnel in France. The Stad Ship Tunnel in Norway is shorter, wider, and deeper.
The world's longest railroad tunnel is the Seikan Tunnel, it is 33.49 miles long.
The longest rock tunnel in the world is located in the New York City.
World's longest tunnel situated in New York state, United States named Delaware Aqueduct tunnel
The world's longest canal that is also a tunnel is the Rove tunnel located in France. It was built in 1974. The longest tunnel in the world is a railroad tunnel that is 35 miles long through the Swiss Alps.
The Seikan Tunnel is in japan. it is one of the longest in the world.
The longest road tunnel in the world at 24.51 km (15.23 miles) long, is known as the Lærdal Tunnel and is located in Norway!
Jawahar tunnel in j&k india
24,5km
The Eisenhower Tunnel is the longest vehicular tunnel.
It may be l4 miles. the Trans-Hudson ( Goddard) tunnel of the former PRR which will be l00 next year, is probably the longest subaqueous tunnel of it s type - and is rated for 80 MPH operation of heavy duty locomotives, not subway cars. The Goddard is l5,600 feet long or about 2.95 miles and some change- try it on a calculator. it has never been as much in the public eye as the automotive vehicular tunnels, the Holland and Lincoln.The Cascade tunnel ( which has an automatic ventilating system installed in the past 30-odd years with remotely controlled tunnel doors ( also keeping out vandals) and ventilation pumps turned on by approaching pressure waves of locomotives is a massive engineering feat, but is an intermountain ( name defines itself) tunnel and not a subaqueous ( Under water) type, the latter much more challenging to the engineer.
The Kellerman Tunnel, exact details are ABOVE EYES ONLY>.