The tunnels north and south of the Danube – the later ascents and descents of the bridge from and to the national roads B127 and B129 were excavated by blasting. A total of 3,200 m of tunnel with an excavation volume of 370,000 m3 was constructed. In the four-lane sections with emergency shoulders, the cross-section is 200 m2 , in the area of junction structures (merging of ramps in the mountain) the cross-section is even up to 400 m2.
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Location: Linz, Upper Austria; Austria
Commissioned by: ICM Construction GmbH
Performance period: since 2020
Construction and heading surveying, supply and installation of geotechnical instrumentation with automatic data acquisition. Carrying out vibration measurements and operating the KRONOS information platform.