Railway tunnel

Channel Tunnel City Tunnel Helsinki to Tallinn Tunnel Cascade Tunnel Hopton Tunnel Center City Commuter Connection Harbour Crossing Tunnel Bulldog Tunnel Franklin Tunnel Leipzig City Tunnel Friendship tunnel Guangzhou–Shenzhen–Hong Kong Express Rail Link Hong Kong section Bowling Tunnel Connaught Tunnel Mersey Railway Tunnel Hokuriku Thames Tunnel Beacon Hill Tunnel (Seattle, Washington) Dorp-Tunnel Ijo Tunnel Severn Tunnel Tunnel Silberberg Schellenberg Tunnel Hamburg Airport S-Bahn line tramway tunnel Ricken Tunnel Michigan Central Railway Tunnel Union Tunnel (Baltimore) Taft Tunnel Lee Bank tunnel Liverpool Overhead Railway Southern Extension Tunnel Pittsburgh & Steubenville Extension Railroad Tunnel East tunnel of the Great Belt Fixed Link Tesch-Tunnel Mount Washington Transit Tunnel Weinberg Tunnel Cork Run Tunnel Belmont Tunnel/Toluca Substation and Yard Hickory Tunnel Clayton Tunnel Nada Tunnel Snow Hill Tunnel Victoria Tunnel Nakayama Tunnel Oslo Tunnel Lopper I Rail Tunnel Copenhagen Tunnel Mount Macdonald Tunnel Great Istanbul Tunnel J&L Tunnel