SUBSEA CELEBRATION

This article describes a breakthrough on the Hitra Froya road tunnel project off the north coast of Trondheim, Norway. A 3-lane, 5.65 km-long subsea tunnel between the mainland and the island of Hitra was completed in 1994. The breakthrough involves the second tunnel, between Hitra and the neighboring island of Froya, that is 1 year ahead of schedule and will link the 2 islands and provide an all-weather route from Froya to the mainland. The 5.3 km-long crossing is being developed from both the Hitra and Froya portals and 3.6 km of the tunnel is under the sea. It will have a 2-lane road with a cross-section of 55 m squared. Progress in another tunnel project, the A71 highway in Germany connecting Erfurt with Schweinfurt, is also described. Atlas Copco Rocket Boomers are being used in both projects.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/25073860
• Corporate Authors:

  Route One Publishing Limited

  19/21 High Street
  Sutton, Surrey SM1 1DJ,   England 
• Publication Date: 2000-4

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 91-92
• Serial:
  • World Highways/Routes du Monde
  • Volume: 9
  • Issue Number: 3
  • Publisher: Route One Publishing Limited
  • ISSN: 0964-4598
  • Serial URL: http://www.worldhighways.com

Subject/Index Terms

• TRT Terms: Highway transportation; Road construction; Tunneling; Tunneling machines; Tunnels; Underwater construction; Underwater structures; Underwater tunnels
• Geographic Terms: Germany; Norway
• Subject Areas: Bridges and other structures; Design; Highways; I25: Design of Tunnels;

Filing Info

• Accession Number: 00792575
• Record Type: Publication
• Files: TRIS
• Created Date: May 11 2000 12:00AM