The idea came up in 1802, construction began in 1988, and it was opened in 1994. Does that answer your question?
The rail tunnel or the road tunnel? Construction of the rail tunnel began in 1857, and it was first opened in 1871. Construction of the road tunnel spanned from 1974 to 1980.
They began construction in 1988 and it opened in 1994.
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Work on the Dublin Port Tunnel began in June 2001.
The construction began in 1909.
Construction began in 1817.
The Channel Tunnel is a rail tunnel which connects England and France, running underneath the English Channel. The Channel Tunnel is a 50.5 Km from end to end, of which 37.9 Km is underwater. The Channel Tunnel runs between Folkestone in Kent and Sangatte near Calais in Pas-de-Calais. At its lowest point, the Channel Tunnel is 75 metres (250 ft) below sea level. A train takes approximately 25 minutes to go through the Channel Tunnel. The Channel Tunnel opened in 1994. You have two options for travelling through the Channel Tunnel. You can take a high speed passenger train, or you can put your car one of the drive-on, drive-off vehicle transporting trains. The Eurotunnel Shuttle is the brand name for the car carrying trains which run through the Channel Tunnel between Folkestone and Calais. Eurostar is the brand name of the company running high speed trains London-Paris and London-Lille-Brussels through the Channel Tunnel. Eurostar trains run at up to 300 Km/Hr on the High Speed Lines on either side of the Channel Tunnel. Eurostar uses the stations: St. Pancras (London), Gare du Nord (Paris), Bruxelles Midi (Brussels) and Lille Europe. Some trains stop additionally at other intermediate stations. Currently these are the only passenger trains operating through the tunnel. The Eurostar takes 2 hours 15 minutes between London and Paris. There is approximately one train per hour in each direction.
Work on the Hoosac Tunnel began in 1848 and was completed in 1875.
The work on the Dublin Port Tunnel began in June 2001 and the tunnel opened in December 2006.
Great Britain and France are connected by the Eurotunnel. It's a 50km tunnel underwater that is commonly called the chunnel. It was opened in 1994 after construction began in 1988.
The Holland Tunnel was constructed in 1922 through 1927. Planning began in 1920.