[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 HAM'S STATION TO SILVER LAKE (AMADOR CO) 1-WAY CONTROLLED TRAFFIC AT VARIOUS LOCATIONS FROM 7 MI EAST OF PEDDLER HILL TO 1.5 MI WEST OF KIRKWOOD (AMADOR CO) FROM 0800 HRS TO 1500 HRS MONDAY THRU FRIDAY THRU 4/13/12 - DUE TO MAINTENANCE