[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA] IS CLOSED FROM 3.5 MI EAST OF SILVER LAKE TO KIRKWOOD /CARSON SPUR/ (AMADOR CO) AT 2355 HRS ON 12/20/15 - DUE TO AVALANCHE CONTROL - MOTORISTS ARE ADVISED TO USE AN ALTERNATE ROUTE CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM COOK'S STATION TO HAM'S STATION (AMADOR CO) CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM PICKETTS JCT TO 1 MI WESR OF WOODSFORDS (ALPINE CO)