The tunnels throughout Boston's Big Dig highway system have been heavily scrutinized since a motorist was killed last week by 12 tons of falling concrete ceiling panels. Inspectors discovered more ...

The tunnels throughout Boston's Big Dig highway system have been heavily scrutinized since a motorist was killed last week by 12 tons of falling concrete ceiling panels. Inspectors discovered more ...

BOSTON (CBS) - Engineers say a space has opened up under one section of a Big Dig tunnel, and they can't fix it. When engineers built the tunnel system, they froze the soil in some places ...

The dirt won't be dug up until early next week, but Wednesday the champagne bottles were breaking and people were autographing the end of a giant tunnel-boring device that will dig twin tunnels ...