MOTORWAY MAINTENANCE PROJECT LIMMATTAL INTERCHANGE – SCHLIEREN EXIT

The 30-year old Limmattal interchange – Schlieren exit section of the A1 motorway features six lanes and has a length of five kilometres. Within the framework of the Federal Roads Office‘s maintenance planning program, extensive refurbishment was undertaken in 2013 and 2014.

Operations within the corrective maintenance project encompassed the refurbishment of the pavement, adjustments to the guidance and protection systems, the provision of new cable conduit blocks, as well as corrective maintenance on structures and drainage systems. Various maintenance measures were carried out on pavement, bridge deck, shoulder curbs and sealings of the Limmat bridge, while expansion joints and bearings were replaced. Several under- and overpasses were refurbished as well. These construction measures allow for an additional 15 to 20 years of service, without any further intervention required.

A subsequent project phase will include the construction of a new road waste water-treatment plant close to the Oberengstringen service area. It is also planned to adapt the exit lane leading to the service area in order to comply with current technical standards, as well as to add electric cabinets.

R+R supported the project management team of the Federal Roads Office by providing comprehensive project management services. These included the procurement of multiple planning mandates and the submission of the construction works, project controlling of current contracts, cost monitoring and –planning as well as construction site management.