A portion of Route 31 in Vernon was closed after a tractor-trailer lost control and careened off I-84 westbound early Friday morning.
The road remained closed from Sunrise Drive to Mile High Road as of 12:30 p.m.
Officials said the truck, which was carrying water, lost control on the exit 67 eastbound ramp and rolled over and off the overpass on to the road below.
They blamed the ice and snow-covered roads left behind by Winter Storm Easton.
Eyewitnesses said it created a traffic mess.
"It took me 25 minutes to get from there to the other side of the bridge," said Jean Champlain, who was delivering papers Friday morning. "Just getting on the highway and getting off one exit."
The truck took out power and ruptured fuel tanks as it crashed onto the road below, officials said.
A twisted metal mess was all that remained of the cab. Emergency crews said the driver actually went to a nearby McDonald's restaurant for help.
"From what I saw this morning, there were tires everywhere," Champlain said. "The truck was flipped over and crushed. I'm just happy he's okay."
State police said the driver suffered only minor injuries.
Route 31 was expected to be closed for an extended period of time as crews work to clear the crash site.
The crash in Vernon was just one of many crashes reported in the wake of the storm.
"The back roads are a little rough. No salt or sand on them," said Sierra O'Neill of Vernon. "The main intersection seems pretty good, but my main concern is the highway because I'm on that for a while."
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