National Road 12 Tillola-Keltti

National Road 12 Tillola-Keltti -project started in 2018 and was completed in 2019. The project improved the safety and flow of traffic in on of the problematic sections of National Road 12. The section features a great deal of commuter traffic, heavy traffic and industry. The customer of the project was Finnish Transport Infrastructure Agency.

The project included constructing an overtaking lane with a central barrier and a new parallel road next to the overtaking lane. A new multi-level interchange was constructed next to the KymiRing motor-racing track in Tillola, Iitti and the multi-level interchange in Kouvola and Keltti were improved with new ramps. In addition, noise protection was constructed and some junctions to private roads were removed from national roads.

The project in numbers:

  • Used by 7,100-8,100 vehicles per day
  • 4 new bridges
  • 2 multi-level interchanges
  • 1.2 km of noise protection
  • About 700 000 cubic meters of land masses moved

Customer: Finnish Transport Infrastructure Agency

Contract time: 2018-2019