A22 Tunnel Kaisermühlen

We supervised the refurbishment of the Kaisermühlen tunnel using surveying technology from September 2015 to June 2016. We were also responsible for quantity surveying alongside stakeout work for the creation of new carriageways. For this purpose, the carriageways in both directions including all ramps were completely modelled in 3D following milling work. To finish, the entire area, including the new fixtures for the inventory documentation, was recorded in ASFINAG PLaDoc format.

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20151106 110355 Projekt
20160322 142640 Projektbild


  • Field of activity: Engineering surveying
  • Location: Vienna | AT
  • Project period: 2016
  • Client: ARGE Hinteregger-Habau
  • Kilometres of motorway: 0.00 to 5.04
  • Area: 50 ha


  • Densification and homogenisation of the network of control points
  • Stakeout of the new carriageway as well as new objects
  • Deformation measurement ceiling niches + Piratsteg footbridge
  • Preservation of evidence of wall erosion using a laser scanner
  • Cubic calculation of erosion and coverage of various refurbished walls
  • Surveying of milled surfaces
  • 3D modelling of milled surfaces as well as the new specifications
  • Profile presentation M1:50
  • Quantity surveying of asphalt coverage and erosion
  • As-built survey in PLaDoc format M1:200

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