Officials are blaming the freezing weather for a landslide in West Mifflin.
Mud and debris came crashing down Monday from a hillside along Curry Hollow Road.
The stretch of road is used by many drivers as a shortcut between Lebanon-Church Road and Route 837.
As Channel 11's Gordon Loesch explained, it could be awhile before the road is back open.
West Mifflin police Chief Frank Diener said drivers spotted the landslide during the evening rush hour.
Fortunately, no homes have been affected but the roadway is closed indefinitely.
Diener said, "The ground is just so saturated with water at this point, now with chill, as the water freezes the ice expands and it heaves, and anything that's unstable starts to come down."
The landslide started on private property, but has now left trees and mud in the middle of Curry Hollow Road.
General Motors owns the property used for a stamping plant. But it's not clear if the company will be paying for the cleanup, or if the borough will have to foot the bill.
State Rep. Ken Ruffing said he's been trying to pass legislation that would allow property owners to buy landslide insurance.
"It basically lets you buy into an insurance program that covers you, because your homeowner's don't. It's similar to mine subsidence insurance, so at least you have some sort of protection," Ruffing said.
Borough leaders are also concerned about a stream on the other side of the road. They say if it is blocked, it could cause more drainage problems.
It's still not clear when Curry Hollow Road will reopen.