From the AP:
A nearly mile-long tunnel on heavily traveled I-70 about 8 miles east of Glenwood Springs will be shut down indefinitely because of a growing crack in the ceiling, officials said today.
The eastbound bore of the 4,000-foot-long Hanging Lake Tunnel was expected to close today. The westbound bore will be used to handle traffic in both directions, CDOT spokeswoman Stacey Stegman said.
CDOT expects it to be "a lengthy closure,” Stegman said. CDOT has been monitoring the crack for about a year, and by Friday it had grown to 70 feet long and 2 inches wide, Stegman said.