Skip to main content

Interdisciplinary Collaboration - Lower Carbon Footprint, Early Project Delivery

Published Date

The Highway 4 road in Norway project came with lots of added challenges to preserve the land, while making a durable road that's up to standards. All while minimizing the carbon footprint.

Highway 4, between the municipalities of Roa and Gran, there were several challenges that needed to be solved. For instance, how to build a four-lane highway through a swamp without destroying it? In addition, there turned out to be a lot of quick clay in the ground, a special kind of clay that is prone to collapse and become liquid under pressure. Furthermore, a limited carbon footprint was an important project requirement.

Read through this case study to get further insights. 

Project facts:

  • New four-lane motorway that will increase capacity and reduce the risk of accidents on the Roa-Gran stretch.
  • The client is the Norwegian Public Roads Administration. Turnkey contracted with the combination of Hæhre-Isachsen as contractor and COWI as designer.
  • The budget is just over NOK 700 million.
  • Construction start: September 2021, opening November 2023.