Bridge inspections state roads VLBG 2020 - 2021

Bridges, Supporting structures

Building category

Solid construction

Construction method

Building inspection

Performed services



January 2020

Processing time from

December 2021

Processing time until

DI Walter Reisenauer

Project manager

DI Sascha Grujic

Substitute project manager

DI Marina Häusle, DI Stefan Gschwendtner

Project team member

Amt der Vorarlberger Landesregierung


Prestressed concrete bridge, untensioned

Type of bridge

2.217,00 m

Length of bride

23.013,00 m²

Expanse of bridge

6.690,00 m

Description of project

In the years 2020 and 2021 our office was commissioned by the county government of Vorarlberg, department of road construction, to inspect the following bridges, trough constructions and road structures.

31 bridges with an overall surface of 23,013.43 m2 and a total length of 2,217.02 m, of which:

  • 7 prestressed concrete bridges with a surface of 3,890.92 m2
  • 4 loosely reinforced ferroconcrete bridges with a surface of 19,122.50 m2

133 retaining walls with an overall surface of 17,605.23 m2 and a total length of 6,690.61 m, of which:

  • 35 supporting structures with a surface of 6,078.11 m2
  • 2 trough constructions with an overall area of 2,064.05 m2 and a total length of 172.04 m

Specific features

Both border bridges “Brücke Alter Rhein“ and „Rheinbrücke“ had to be inspected at night, as it was not possible to shut one lane during daytime hours due to the high levels of traffic.

Description of tasks

  • Site inspection and survey of the bridges and culverts with photographic documentation
  • Elaboration of test reports including damage category
  • Drafting of general plans and damage plans
  • Measuring and calculation of bearing displacements

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