Rosengarten tunnel and Casino bridge in Brugg to be renovated
The Aargau cantonal council has approved a loan of CHF 13.6 million for the renovation of the Rosengarten tunnel and the Casino bridge in Brugg. After the renovation, both structures should last for 50 years.
The Rosengarten tunnel and the Casino bridge in Brugg are being renovated. According to a press release from the Canton of Aargau, the two structures are to be upgraded so that they can be used for the next 50 years. The cantonal government has approved a loan of CHF 13.6 million for both construction projects.
The refurbishment will start in 2027 at the earliest. Prior to this, the project submission, approval procedure, land acquisition, tendering and awarding of work must be completed. The work is expected to take a year. The Brugg central bypass with the 205 metre-long Rosengarten tunnel was opened in 1981. The Casino Bridge was built in 1980 and carries the K117 over the River Aare.
According to a statement from the Department of Construction, Transport and Environment, the supporting structure of the tunnel is intact. However, the tunnel must be adapted to meet current safety requirements. The tunnel walls, fire protection and environmental protection are to be improved, as are the tunnel safety systems. In addition, the control centre at the north portal will be expanded and the operating and safety systems will be brought up to current standards.
The bridge surface on the Casino Bridge has reached the end of its service life. The kerbstones, the waterproofing and the mastic asphalt covering of the carriageway and pavement will therefore be replaced, according to the press release. Defects in the bridge structure, abutment boxes and piers will be repaired. The corrosion protection will be renewed on the bearings, shaft gratings and railings, among other things. The expansion profiles of the carriageway expansion joints will also be replaced.
The costs for the repair of the Rosengarten tunnel and the Casino bridge will be borne by the canton.