Norway's E134 highway expansion to slash congestion by 2033 with electric construction rules

Oslo, March 17, 2026 – This summer, Veidekke Entrepreneur AS will begin construction on the second phase of the Oslofjord Connection along the E134 highway between Drøbak and Hurum. The company won the tender for planning and building the project's next stage after the Norwegian Public Roads Administration (Statens vegvesen) determined its bid offered the best combination of price and quality. Competing proposals came from AF Gruppen Norge AS and the Infra Group AS–led Oslofjordforbindelsen ANS consortium. The contract is valued at 5.4 billion Norwegian kroner, with completion scheduled for spring 2033.

The agreement covers the design and construction of a 14-kilometer stretch of the E134, expanding the existing road from two to four lanes. Key elements include new sections of the Oslofjord Tunnel, the Frogn Tunnel, and the Vassum Tunnel, as well as upgraded tunnel portals, multiple bridges, and redesigned interchange areas. The project also involves modernizing the existing tunnels along this segment.

Stringent climate and environmental requirements apply: At least 70% of passenger vehicles and vans, along with all construction machinery under eight tons, must operate electrically on-site. A set proportion of earthmoving work must also be carried out using electric equipment.

With an average of over 11,000 vehicles—many of them heavy goods trucks—passing through the Oslofjord Tunnel daily, closures due to incidents cause significant traffic disruptions. The new tunnel section aims to enhance accessibility, improve traffic flow predictability, and boost safety for all road users, according to the roads authority.

On June 4, 2024, Norway's parliament (Storting) approved 7.75 billion NOK in funding for the highway project.

Read more about the Oslofjord Tunnel expansion [here].