The renovation project is divided into eight construction phases, with a planned completion date of December 2025. This year, the focus is on the first two construction phases, each covering 3.3 kilometers. The first construction phase was successfully completed in mid-August 2024. The conversion of the traffic safety system began immediately afterwards so that work on the second construction section could continue without delay.
Logistical masterpiece and quality requirements
The renovation of the B4 posed major logistical challenges, which the experienced team mastered with aplomb. The focus of the work is on adhering to the tight schedule, renewing the asphalt superstructure and ensuring the load-bearing capacity, evenness and skid resistance of the road surface. A total of around 108,700 square meters of asphalt, HGT and soil will be removed. Large quantities of materials are required for the reconstruction, including 81,000 tons of gravel base course, 35,000 tons of asphalt base course, 21,000 tons of asphalt binder course and 9,000 tons of asphalt surface course. In addition, 450 road gullies will be removed and 390 restored.
Modern technology and individual solutions in use
A special feature of the project is the use of different surface course materials. Both porous asphalt and stone mastic asphalt are being used in the first two construction phases. These materials require specific drainage systems, including a hollow gutter in the area of the porous asphalt. The work is supported by modern technical aids such as compaction controls (FDVK) and the logistics paving tool SSO (Smart Site One) for quality assurance. The Osnabrück/Gütersloh branch works in close cooperation with its subsidiary GS Straßenbau GmbH when paving the bituminous superstructure.
