Project leaders with the Chesapeake Bay Bridge Tunnel reported that Chessie, the tunnel boring machine used to dig the second tunnel, had broken through at the second island.
Chessie, the tunnel boring machine, has completed her over 6300-foot journey under Thimble Shoal Channel – at the Chesapeake ...
Chessie officially completed her journey, successfully exiting the receiving pit on Two Island on Wednesday. Chessie reached ...
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