Breakthrough has been achieved on Norway’s Grenland tunnel on the E18 motorway.
The breakthrough by Eiffage Génie Civil and contractor Metrostav Norge on the northern section marks the end of excavation for the twin 5.1km-long tunnel for Lot 2.
The Grenland tunnel is a part of the Norwegian Ministry of Transport’s E18 Langangen-Rugtvedt project, which is 17km long and includes a four-lane highway, bridges, and tunnels. The project provides a bypass around the city of Porsgrunn, on the E18 highway between Oslo and Kristiansand.
Eiffage also has the design and build contracts for Lot 1 (Langangen-Lanner) and Lot 3 (Kjørholt-Rugtvedt). Lots 1 and 3 works are expected to be delivered mid-2025; Lot 2 is scheduled for completion by early 2026.
