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  Rehabilitation of Roadtunnels in Norway

  In Norway we now have more than 1100 road tunnels, and more are to be built in the coming years. Up to now operation and maintenance cost has been underestimated. Partly because there has been a relatively low standard in the road tunnels in Norway, but also because of the new regulations given among others from the EU. Another parameter is that operation and maintenance cost has not been taken into account when planning and building new tunnels. We now have an utmost need of rehabilitation of many of our tunnels. The main objectives are: widening out the profile, new rock support, new lining for frost and water protection, new ventilation, new lightning, new communication system , new system for monitoring, keeping the old system functioning when doing the rehabilitation, how long and when can we close the tunnel? Are there any passing by? Building new tunnels instead of rehabilitate the old tunnels? We are now making a program for this work.

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