Lenningen

B465

Rehabilitation of the B 465 between Gutenberg and Oberlenningen

Resurfacing of the carriageway in several construction phases

The project comprised a total of four construction phases. As part of the works, the asphalt binder and wearing courses were resurfaced. In addition, around two kilometres of monolithic kerb channels made of in-situ concrete were constructed using a slipform paver. In certain areas, work was also carried out on the carriageway drainage system.

Surveying and detailed design

The detailed design, as well as the necessary as-built surveying, was carried out by the in-house surveying department. Drones were used to record the as-built data. This enabled the surveying work to be carried out without any additional road closures.

Asphalt production and reuse of reclaimed asphalt

The asphalt mixes for the project were produced at the asphalt plant in Kirchheim unter Teck. As part of the construction works, existing asphalt pavements were removed and, following processing, reused as asphalt granulate. A temporary storage facility was set up to support site logistics, ensuring the supply of materials for the individual construction phases.

Implementation in several construction phases

The first three construction phases were carried out during the summer holidays. This was followed by the rehabilitation of the road through Gutenberg in further sections. In addition to the actual roadworks, the coordination of construction schedules, materials logistics and traffic management formed an integral part of the project organisation.

Road rehabilitation in the Swabian Alb

The work on the B465 comprised road construction, surveying and drainage works along a stretch of approximately 4.5 km. In addition to the resurfacing of the asphalt, the project focused on coordinating several construction phases as well as integrating surveying, material preparation and logistics into the construction processes.