Renovation of A23 supporting wall in Laaerberg

PORR renovated four supporting walls of the Südosttangente (A23) at Höhe Laaerberg by building approximately 9,500 m permanent anchors. At the same time 2,000 m concrete walls were built, 21 km marking works were performed and 2,000 m rails were installed.

The PORR team carried out the work with the help of mobile units built on trucks with trailers, partially with special drilling equipment at a height of about 7 m.

All renovation works had to be carried out during the night between 20:00 and 05:00 without traffic interruptions. From 05:00 early in the morning, the drilling spots at the A23 were fully cleared and all lanes were once again released for the traffic.

PORR and its Client ASFINAG jointly received the KOOPAWARD 2016 for this renovation project.