Customer: Asfinag BMG
Construction period: 08.2005 – 04.2008
Location: From the A4 East Motorway, Bruckneudorf intersection, to the Kittsee border crossing to Slovakia
Country: Austria
As one of the major transit routes to the East, the A6 Northeast Motorway stretches from the A4 East Motorway, Bruckneudorf intersection, to the Kittsee border crossing to Slovakia. The construction site has a length of 21.8 km and is currently the biggest earthmoving construction site in Austria. Most of the transit traffic from southern Slovakia currently moves through towns along the B10 and B50 federal roads, which has a considerable impact on the local residents. The purpose of the new motorway is to be able to quickly process the current and future heavy traffic whilst abating the traffic situation for the local residents. While keeping the B50 open to traffic, the roadway will be renovated and routed along the A6. A total of three motorway junctions and the A4/A6 intersection must also be integrated in the existing roadway.
The 425 m Leitha Bridge at motorway kilometer 11.4 is erected on land in Burgenland as well as Lower Austria, making it the construction site’s biggest geographic divider. The construction site traffic along the road will not be routed across the Leitha until the roadway towards Slovakia is completed on October 2, 2006, connecting the eastern and western construction sites. On the eastern half, approx. 1.0 million m³ of earth will be borrowed from the sides over an area of 150,000 m². Fill material will be extracted down to a depth of 8 m and the topsoil dumped on the main route. The existing federal road will be expanded to a normal-size motorway at the Kittsee border crossing.
In the western half, attention will be focused on the construction of the intersection connecting the A4 at Bruckneudorf (Bruckneudorf intersection). The motorway feeder currently runs through an underpass under the existing motorway; both lanes of the A4 were rerouted to facilitate its construction. The bridge is founded on diaphragm walls. Due to the local groundwater conditions, the A6 underpass was sealed off with an impermeable wall. The filling depth of the embankments along the main route is up to 7 m, the cutting dept is up to 5 m. A total of 2.45 million m³ cut and 2.16 million m³ fill will be moved. This work is currently being executed at full speed to ensure that the “major excavation“ will be completed by the end of September 2006. The use of computer-controlled equipment is imperative to be able to deal with these enormous quantities. State-of-the-art equipment such as GPS caterpillars and 3D graders is being used. The roadway is drained via seepage basins and 23 km pipelines, discharging into a total of 19 settling basins.
Technical data
Length: 21.8 km
Removal of excavated material: approx. 2.45 mill. m³
Embankment fill: approx. 1.83 mill. m³
Upper base course: approx. 480 000m³
Concrete layer: approx. 478 000m²
Drainage: approx. 23 000m
Asphalt: approx. 170 000 t
Game fence: approx. 43 000m
Steel guardrails: approx.27 400m
CIP concrete and prefab walls: approx. 22 500m
