TECHNICAL | DRILL & BLAST
Above: Breakthrough celebration at Fåberg Tunnel
RECENT ROAD TUNNEL BREAKTHROUGHS Fåberg Tunnel AF Gruppen is building the 2.8km-long twin-tube Fåberg Tunnel on the E6 motorway, north of Oslo, for client Nye Veier. The tunnel is part of Nye Veier’s new E6 section of
road, being built and operated, between Storhove and Øyer in Innlandet, near Lillehammer. The E6 is seen as one of the main road arteries for transport through the country. The contractor started in January 2024 and achieved
breakthrough on the tunnelling works early this year. More than 1,200 blasts were carried out for the two tubes since work began and more than 450,000m3
rock was removed. Hard rock, though, does not mean tunnelling is
straightforward, of course. The project has encountered challenging rock quality, with occasionally demanding geological conditions and need for extensive safety work. Following the completion of drill and blast work,
construction has moved to lining the tunnels, including water- and frost-proofing, and also the drainage and road surfacing, to be followed then by M&E, lighting and signage fit-out.
of
The new section of E6 between Storhove and Øyer is
one of three parts of the larger development of the E6 through Innlandet. Nye Veier and AF Gruppen are working on a
neighbouring section, from Storhove south to Roterud.
Grenland Tunnel Late last year, contractors Eiffage Génie Civil and Metrostav Norge achieved breakthrough on the northern section of the Grenland Tunnel on the E18 motorway. The breakthrough marked the end of excavation for
the twin 5.1km-long tunnel, on Lot 2 of the Langangen- Rugtvedt project. The Langangen-Rugtvedt project is in the south of
Norway and will provide a bypass around the city of Porsgrunn, on the E18 motoway between Oslo and Kristiansand. The project is being developed by the Ministry of Transport. The section of E18 is 17km-long and construction
includes a four-lane highway, bridges, and tunnels. The works are being executed in lots. 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.
Above: Celebrating finish at Grenland Tunnel 12 | August 2025
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