Skip to content

Black River Tunnel – TBM Assembly Commences

With the recent completion of the starter tunnel, our crews are now able to begin assembly of the 23′ Robbins TBM.  Various machine components and “shields” have been semi-constructed above ground, and are being crane lowered into the shaft for final assembly.  The entire 200′ long machine will be completely assembled inside of the starter tunnel before launch.  The assembly process is anticipated to take approximately eight weeks, with plans to begin tunneling sometime in early October.