[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA] CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM SILVER LAKE (AMADOR CO) TO 5 MI WEST OF PICKETTS JCT (ALPINE CO) 1-WAY CONTROLLED TRAFFIC AT VARIOUS LOCATIONS FROM 1.4 MI WEST TO 3.2 MI EAST OF PEDDLER HILL (AMADOR CO) FROM 0900 HRS TO 1500 HRS MONDAY THRU FRIDAY THRU 3/8/13 - DUE TO MAINTENANCE