Background and Facts

In February 2006, the Danish Road Directorate took over a road-building project from the Southern Jutland Regional Authorities – a 25 km long stretch of motorway between Kliplev and Sønderborg.

The move was a consequence of the Danish local government reform. The purpose of the new motorway is to create better road communication between the Southern Jutland motorway and the area around Alssund. A further purpose is to strengthen regional development. The motorway to Sønderborg is a special project as it is to be carried out as a Public Private Partnership (PPP), a form of tendering not previously used for Danish road-building projects.

The project comprises

  • 25 km of four-lane motorway between the E45 at Kliplev and the Alssund bridge at Sønderborg
  • 7 intersections
  • 10 minor roads to be led over/under the motorway
  • 18 km of minor roads to be modified

Estimated traffic in 2015 on the stretch (average per day)

  • Western end: 9,000 vehicles
  • Eastern end: 25,000 vehicles

KMG's standard cross-section for the M51 Kliplev-Sønderborg motorway is shown in the figure above and corresponds to Danish Road Directorate design criteria. Transverse cambers of the entire stretch between the E45 junction and Sønderborg are designed for a 130 km/h speed limit.