Commissioning of the line is postponed to 2025
(ffm) Bad news for the construction of the U5 underground line to the Europaviertel: Already before Christmas, damage had occurred to the tunnel boring machine used. As it has now become clear, the repair of the machine is causing a delay of several months in the construction of the underground line. The completion of the underground extension is therefore being postponed from 2024 to 2025, according to the head of the transport department, Klaus Oesterling.
The first 240 metres of the line in the direction of Güterplatz could be excavated at a depth of 22 metres, but at a lower speed than planned by the construction company. After the tunnel boring machine had reached the area of the future Güterplatz station, the machine was stopped for an inspection. In the process, far excessive wear and tear was detected on the cutting wheel, with partial destruction of the mining tools, making repair of the cutting wheel unavoidable. According to Ingo Kühn, Managing Director of Stadtbahn Europaviertel Projektbaugesellschaft, the construction company stated that it was necessary to create a sufficiently large and groundwater-proof area for the repair in which the repair could be carried out.
According to Stadtbahn Europaviertel Projektbaugesellschaft, the reasons for the unexpectedly high wear and tear of the tunnel boring machine are unclear. The construction company pointed out that the complete analysis of the unexpectedly high wear could only be carried out with the complete inspection of the cutting wheel during the renovation.