Technical data
Project description
Construction of a noise protection tunnel between the Böblingen and Sindelfingen-Ost exits on the A81 motorway
Length: 850 metres
Two tubes, each with three lanes plus hard shoulder
Consisting of 85 individual blocks with a block length of 10.0 metres
Construction method
- Open construction method
Geology
- In the layers of the Keuper
General data
The project
Tunnel A81 near Sindelfingen
Client
DEGES GmbH
Contractor
ARGE A81 - consisting of Wayss & Freytag Ingenieurbau AG, HOCHTIEF Infrastructure GmbH, J. FRIEDRICH STORZ VERKEHRSWEGEBAU GMBH & CO. KG
Construction period
2013 to 2027
Net construction sum
Approx. 100 million € Total project
Extension of the A81 motorway
The A81 between Sindelfingen-Ost and Böblingen-Hulb is being widened from four to six lanes over a length of more than seven kilometres.
The noise protection tunnel serves as a link between the towns of Böblingen and Sindelfingen, among other things.
Further projects
Frankfurt
Sustainable mobility for Frankfurt’s Europaviertel
München
Extension of underground line 5
Garmisch-Partenkirchen
Relieving congestion on a major transport route in the Alpine foothills
