[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 3.7 MI EAST OF PINE GROVE (AMADOR CO) TO 3.5 MI EAST OF WOODFORDS (ALPINE CO) 1-WAY CONTROLLED TRAFFIC AT VARIOUS LOCATIONS FROM 0.6 MI EAST OF SILVER LAKE (AMADOR CO) TO THE AMADOR/ALPINE CO LINE FROM 0730 HRS TO 1500 HRS MONDAY THRU FRIDAY THRU 3/2/12 - DUE TO MAINTENANCE