Seikan Tunnel, Description, History, Construction, & Facts

THE SEIKAN TUNNEL. INTRODUCTION, by Civil Engineering Consortium IIT Roorkee

The World's Longest Under Water Train Tunnel Built - video Dailymotion

30 years on, world's longest undersea tunnel faces challenges as Japan balances bullet trains with freight - The Japan Times

The world's longest underwater tunnel that's an insane 33 miles long and cost £5.6b, World, News

The Great Era of Underwater Tunneling - The Atlantic

Seikan Tunnel, Description, History, Construction, & Facts

Seikan Tunnel Mitake Construction Zone, Projects

Travel Underwater With the Amazing Seikan Tunnel

5 of the Longest Tunnels in the World — And How They Were Built

Maintenance of the undersea section of the Seikan Tunnel - ScienceDirect