Authorities say the man had built two 6-foot-deep holes in the sand when he tried to connect them with a tunnel that afternoon. But by the time he tried to connect the two, the sand had dried and ...
Tunnel workers gather the muck and dirt as it pours in. They toss the dirt on conveyor belts, which carry the excess soil out of the tunnel. The cylinder supports the sandy soil while tunnel ...
The tunnel boring machine can slice through sand with ease, but there's one problem: the whole tunnel will collapse if you don't figure out a way to support the loose sand. Try again!
This past winter, roughly 12,000 cubic yards of sand from the Hampton Roads Bridge Tunnel Expansion project was placed at East Beach between 21st and 27th Bay Streets in order to replace sand that ...