Interstate 80 just west of the state line was closed for hours Tuesday because of a mudslide triggered by severe thunderstorms.
The highway was closed in both directions after mud and debris from the hillside slid onto I-80 about 4:30 p.m.
The state Department of Transportation reported that as of 8 p.m., one eastbound lane was open to traffic and that the westbound lanes were expected to open about 11 p.m.
The mudslide covered a football field-size area of the westbound and eastbound lanes with 3 to 8 inches of mud and debris, according to a Caltrans news release.
Eastbound traffic was being directed off the interstate at Hirschdale Road in Truckee. On Tuesday evening, westbound traffic was being turned around at the state line.
Motorists were advised to use alternate routes. Eastbound big rigs were being routed to Highway 89 through Loyalton, then Highway 395 in Nevada. Westbound big rigs were being routed to Highway 395 through Loyalton to Highway 89 in Truckee.
Caltrans spokeswoman Rochelle Jenkins said that a geologist was to examine the site. With rain forecast for the area over the next couple of days, Jenkins said, Caltrans wants to make sure the hillside is stable.
Call The Bee's Cathy Locke, (916) 321-5287.