The Follobanen (Follo Line), Norway’s largest rail project, will create a direct high-speed rail link between the capitol city of Oslo and a regional transportation hub in the Follo District, 14 miles to the south, cutting travel time from 22 minutes to 11 minutes. The project, which includes two separate tunnels running side-by side for most of the route, is the largest rail project in Norway, intended to support a 30% population increase in the Oslo region.
While much of the project is in a rural setting, construction near Oslo Central Staiton is complex and requires interfaces with several preexisting tunnel projects. Completion is expected in 2021. Project cost is $2.35 Billion.





![Twin-bore tunnels of the Oslo-Ski Follobanen are being bored through hard rock with 4 TBM's, working from each end toward the center to expedite the work. [© Jernbaneverket / Anne Kathrine Kalager, Project Director]](https://images.squarespace-cdn.com/content/v1/561e6ed5e4b039248a6a94aa/1449452828943-RBKAAWS7QG715FMO4NWH/Oslo-Ski+Line+Twin+Tunnels.png)

![Montage showing complexity of existing tunnel infrastrucfture new Oslo Central Station. [© Jernbaneverket / Anne Kathrine Kalager, Project Director]](https://images.squarespace-cdn.com/content/v1/561e6ed5e4b039248a6a94aa/1449452966067-BO4H7LIBNR816VFVOPZH/Oslo-Ski+Follo+Line+near+Oslo+Station%2Cjpg%281%29.jpg)
