Transfer bridge Graitery tunnel
2009
Main contractor
Groupement Tunnel de Graitery
Services provided by Marti Technik AG
A 60 m transfer bridge was built for the Graitery tunnel, which had a cantilever middle section with a length of 28 m in order reinforce and concrete the 12.5 m lower part. The bridge was designed to be used by construction site vehicles with a maximum weight of 70 t, so that work could be carried out continuously below the bridge while it was being used.
Marti Technik AG
Lochackerweg 2
CH-3302 Moosseedorf
Fon +41 31 858 33 88
Fax +41 31 858 33 89