The World's longest tunnel page - The longest Road Tunnels

**The World's longest Road Tunnels**
Country	Tunnel	Length	Date of opening
Norway	Laerdal	24 510 m	27.11.2000
China	Zhongnanshan (2 tubes)	18 040 m	20.01.2007
Switzerland	St. Gotthard / San Gottardo 2nd Röhre	16 918 m	05.09.1980^¤
Austria	Arlberg	13 972 m	01.12.1978
Taiwan	Hsuehshan (twin tunnel + service)	12 942 m	16.06.2006
France - Italy	Fréjus	12 895 m	12.07.1980
France - Italy	Mont-Blanc / Monte Bianco	11 611 m	19.07.1965 ^¤¤¤
Norway	Gudvanga	11 428 m	17.12.1991
Norway	Folgefonn	11 150 m	15.06.2001
Japan	Kan-etsu (south bound tube)	11 055 m	1991
Japan	Kan-etsu (north bound tube)	10 926 m	1985
Japan	Hida (+emergency tunnel)	10 750 m	2010****
Italy	Gran Sasso d'Italia (East direction)	10 176 m	01.12.1984
Italy	Gran Sasso d'Italia (West direction)	10 173 m	1995
Austria	Plabutsch (West tube)	10 085 m	17.12.2004
France	Le tunnel Est (Rueil - Malmaison à Versailles) Construction	10 000 m	2004 - 2006

**** A 4.5 m diameter TBM has been installed on site, and excavation of the emergency tunnel from the Toyama side with 2% longitudinal grade towards Nagoya is under way. A 12.84 m diameter TBM is now being manufactured and excavation of the main tunnel is scheduled to start in April 2000. Excavation will be carried out from the Toyama side only.

A 17.3 km motorway tunnel through the Alps under the Mercantour mountains will put the Nice region within a three-hour drive from the main cities of Piedmont and Lombard. The Mercantour tunnel was approved in 1993 by both the French and the Italian governments, but has been postponed for environmental reasons.

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This page was last modified on February 3, 2007