The HRBT Expansion Project – TBM Main Drive Installation Update

The process of reassembling and placement within cell 1 of the South Island Launch Pit of TBM Mary with her shield section already to set in place, is advancing. The plan of the next few days is the lifting the cutter head and attaching it to the main drive by team. Following that, in order to boosting the HRBT Extension project, the TBM is due to dig two new tunnels underneath the Hampton Roads harbour.

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