Mary’s job is done. On Wednesday, the tunnel-boring machine known as Mary, responsible for digging the two new tunnels for the Hampton Roads Bridge-Tunnel expansion, completed the second and final leg ...
The flexible Bucyrus-Ruth model HU Dredger is shown in travel position. An operator hand cranks the steering adjustment of the remote crawler on the Ruth Dredger. The Ruth Dredger was a unique ...
Mary, the enormous drill doing the bulk of the heavy lifting in the Hampton Roads Bridge-Tunnel Expansion Project, began boring the second tunnel Thursday after a six-month break. She finished digging ...
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