Karlsruhe’s new road tunnel project

Construction will commence in April 2017 on a new road tunnel link in Karlsruhe. Austrian contractor STRABAG has an 84% stake in the consortium, which also includes Schleith, building the link. Civil design is being handled by Ed Züblin meanwhile. The new Kriegsstraße vehicle tunnel in Karlsruhe will carry two lanes of road traffic underground, while providing a surface connection for trams, pedestrians and cyclists. The tunnel construction forms part of the wider Kombilösung public transport infrastructure
December 13, 2016 Read time: 2 mins
Construction will commence in April 2017 on a new road tunnel link in Karlsruhe. Austrian contractor 945 STRABAG has an 84% stake in the consortium, which also includes Schleith, building the link. Civil design is being handled by Ed Züblin meanwhile. The new Kriegsstraße vehicle tunnel in Karlsruhe will carry two lanes of road traffic underground, while providing a surface connection for trams, pedestrians and cyclists. The tunnel construction forms part of the wider Kombilösung public transport infrastructure project for Karlsruhe that is intended to help cut congestion. Construction of the new tunnel begin in April 2017, while its completion is scheduled for mid-2021. The tunnel will reroute the through-traffic on Kriegsstraße underground for a distance of 1.6km between Mendelssohnplatz and Karlstor. The tunnel will be built using a cut-and-cover process and will feature a rectangular reinforced concrete frame. The Züblin-led consortium will excavate a 9m deep concrete trench, which will then be roofed over allowing the tram tracks and cycling and pedestrian facilities to be installed on the surface. The work is being divided into nine sections that will be cut, concreted and covered from the top. The close proximity of buildings and the city’s high groundwater levels will ensure that the waterproofing and retaining wall design will be challenging however.
Road Structures

For more information on companies in this article

Related Content

  • Brazil Tamoio highway and São Sebastião tunnel work
    July 5, 2016
    Brazil’s Tamoio Highway and São Sebastião tunnel construction is of major importance – Mauro Nogarin reports. The modernisation and expansion of Brazil’s Tamoio highway is a major project for Brazil. The project has an estimated cost of $1.5 billion and work on the first section from Planalto was completed in January 2014, costing around $350 million. The project is being managed by the state-owned agency DERSA, which deals with road development. According to the concessionaire for the Tamoios highway p
    Read More
  • Strabag’s Züblin subsidiary wins key A 100 Berlin urban motorway contract
    May 28, 2014
    Strabag subsidiary Züblin has been awarded the €73 million contract to build a 700 metre section of the A 100 urban motorway in Berlin, Germany. Situated at Sonnenallee Junction, the works will see Züblin not only construct a new dual-track commuter rail bridge and a single-track long-distance railway bridge, each with 68m spans; but also set up diaphragm walls, establish underwater concrete floors, install uplift and pit lining anchors, and drive the sheet piling and bored piles. The contract also encomp
    Read More
  • Mexico’s new Jala-Puerto Vallarta Highway
    August 29, 2017
    Mexico’s highway infrastructure plays a key role in the country’s economy, carrying around 55% of its freight and 98% of its passenger traffic. To meet this demand, the network has 377,660km of roads in all. This is split between the 49,652km federal highway network, the 83,982km of state roads, 169.429km of rural roads and 74,596km of access roads. mHowever, although the federal road network manages to connect a large part of the country's strategic points, some stretches already present problems with satu
    Read More
  • Kosovo's award-winning green highway construction
    March 20, 2012
    A new highway is proving an economic lifeline for the tiny country of Kosovo – Mike Woof reports. Road projects in Europe rarely meet such widespread public approval and support as the new Route 7 highway being built in the new Balkan state of Kosovo. The first sections of the new road opened to traffic in November 2011, with locals turning out in large numbers to celebrate the event. The official opening was carried out by the country’s prime minister Hashim Thaçi, president Atifete Jahjaga, and members of
    Read More

Highlighted Content