NAPA (CBS SF) – Flooded roadways and rock slides in Napa County created challenging travel conditions Tuesday for residents living in California’s famed Wine Country.

The Napa County Sheriff’s Department said the Silverado Trail remained closed after tons of rock continue to tumble down onto the roadway.

One rock slide was located between Pope St. and Deer Park and there was no estimate as to when crews would be able to clear the debris.

A second slide on the Silverado Trail was blocking the roadway at Pratt Street.

The CHP said geologists were on the scene, examining the slides and trying to determine the stability of the rock wall.

The Silverado Trail was closed indefinitely due to concern from officials about falling rocks.

“What that’s doing is loosening up that whole slab up there, which I would say is about 1,000 to 2,000 cubic yards of material that could come down,” said Dave Cardwell of the Napa Department of Public Works. “It’s very unstable. As you can see, there are two slip planes up there. Its just a matter of time before this comes down again.”


Meanwhile, water erosion, a falling tree and a sliding hillside forced State Route 128 to be closed just east of the Canyon Creek Resort.

A photo shows a gaping hole underneath the roadway.

The CHP also was warning locals that Highway 121 remains closed at Schellvile.

Elsewhere in the county, flooded roadways were the issue. Water on the roadway triggered a crash that closed down northbound Highway 92 for a while on Tuesday morning.

A car and delivery van both lost control and ended up in a muddy, flooded grassy knoll.

“I was going to get gas to gas up so I could deliver the meat,” driver Daniel Hinternann told KPIX 5. “But I didn’t see the highway flooded. When I started to see it, I was going to turn around but I got stuck in the mud.”

A couple miles away, a small slide in American Canyon forced drivers to maneuver around a pile of mud and debris.

And flooding was reported on State Route 29 in Lodi Lane.