Preparations for the groundbreaking ceremony for the subway line from Großhadern to the campus in Martinsried are in full swing. The managing director of the project management company for the extension of the U 6, Dimitri Steinke, reported to the Planegger municipal council that, after the preliminary planning, the decisive draft planning had now begun. The necessary species protection measures – for dormouse and bats – have been completed, the felling of trees in the vicinity of the approximately one kilometer long route has also taken place, the removal of the rootstocks is imminent. You are now so far that you can “publish the main tender”.
Dimitri Steinke, head of the project company, announced progress.
(Photo: Catherine Hess)
The contract award for the main construction measure – the actual subway construction – is planned for August: “We can already start preparatory construction measures. The actual civil engineering work is to start in 2023,” said Steinke. Since problems with “contaminated excavation” are expected, “which will have a major impact on construction progress”, the commissioning date is currently assumed to be in 2027 – around ten years later than originally thought.
The expected costs are not much different. Even then, a lot of things are no longer valid. Steinle expressed caution and referred to the “massive price increases” that were still to come. For example, the price of reinforcing steel has risen by 60 percent within a year, so “the cost calculation can only be shown to a limited extent”. Steinle gives the figure of around 166 million euros. When the plans were first made 15 years ago, around 70 to 80 million euros were assumed. The managing director of the underground construction company called “three surprise finds” that could lead to further price increases: “Several unknown seepage shafts, unknown sewer shafts and power lines.”
In addition, there is an explosion in the costs of certain building materials such as metal and wood. The “final classification of the excavated earth, which had to be disposed of in large quantities for geotechnical and static reasons” led to price increases. Steinke was satisfied with the parking deck, which is almost complete, and the P&R facility, which “probably exceeded the forecast framework by just 18 percent”.