How to drive the Drammen Spiral Tunnel in Norway?

The Spiralen Drammen is an unusual helix-shaped tunnel located in Drammen, the capital of the county of Buskerud, in Norway.

Spiralen tunnel

What is the Drammen Spiral Tunnel in Norway?

Opened to traffic in 1961, this unique road spirals from the riverside city streets, coiling up to a plateau that overlooks the industrial town of Drammen. With six spirals covering 1,649 meters (5,413 feet), the tunnel climbs from 50 meters (approximately 160 feet) to about 200 meters (approximately 656 feet) above sea level in six loops.

What Makes the Drammen Spiral Tunnel Unique?

The tunnel is a one-of-a-kind engineering marvel, having the shape of a helix, winding up the Bragernesåsen hill in six loops. Excavation works for the tunnel began in 1953, and it took eight years to complete. The tunnel was officially opened in 1961 by King Olav V.

Is the Drammen Spiral Tunnel Suitable for Everyone?

While the tunnel is fully paved and centrally located in the eastern and most populated part of the country, it is not recommended for those who suffer from claustrophobia.

What Amenities Await at the Summit?

Upon reaching the top of the tunnel, visitors are treated to one of the most spectacular viewpoints in the city. The summit features the Drammen Museum, an open-air exhibit. Additionally, facilities include parking for up to 200 cars, a cafeteria, kiosk, toilets, and several seating areas. The site is open daily from 06:00 to 23:00.

How Busy is the Drammen Spiral Tunnel?

Traffic through the tunnel varies seasonally. On average, it sees 350 vehicles daily. However, depending on the time of year, this number can range from around 100 to as many as 2,000 vehicles.