The planned Sunda Bridge across Kleppsvík Bay shares striking similarities with Tromsø Bridge, the most famous landmark in Northern Norway. Both bridges would measure similar lengths and heights. They would both feature concrete pillars and comparable designs.
Tromsø Bridge connected Tromsø island to mainland Norway when it opened in 1960. Prime Minister Einar Gerhardsen inaugurated the structure on July 3, 1960. At 1,036 meters long and 36 meters high, it held the title of Northern Europe's longest bridge at the time. Drivers paid bridge tolls for the first decade.
The bridge accommodates two vehicle lanes, one in each direction. Pedestrians use a dedicated walking path on one side while cyclists have their own lane on the other.
Bridge access triggered population growth in Tromsø as car ownership increased. Traffic jams became more frequent over the years. The bridge could no longer handle the volume of vehicles. Authorities decided to build an underwater tunnel beneath Tromsøsund as a solution.
The twin tunnels opened in 1994 with four total lanes. They stretch 3,500 meters because they descend to 102 meters below sea level. The depth required extra length to maintain safe slopes. Unlike the bridge, the tunnels prohibit pedestrians and cyclists for safety reasons.
The new Sunda Bridge project faces similar transportation challenges that required tunnel construction in Tromsø. Norwegian infrastructure planners appear to be applying lessons from past projects to current needs.