The Hampton Roads Bridge-Tunnel expansion project will pass a pair of milestones this fall.
Mary, a nickname for the 430-foot-long machine boring the two new eastbound tunnels, is on track to make its second breakthrough in September. The machine completed boring the first tunnel last April and took more than five months to get turned around.
The Virginia Department of Transportation also plans to route eastbound traffic onto a new section of the bridge. Drivers exiting the tunnel to Norfolk will be directed onto the structure by early September…