I 80 [IN THE SAN FRANCISCO BAY AREA - SOLANO CO] WILL BE CLOSED TO WESTBOUND TRAFFIC AT THE SAN FRANCISCO-OAKLAND BAY BRIDGE /IN SAN FRANCISCO/ (SAN FRANCISCO,ALAMEDA CO) 24 HRS A DAY FROM 2000 HRS ON 2/17/12 TO 0500 HRS ON 2/21/12 - DUE TO CONSTRUCTION - MOTORISTS ARE ADVISED TO USE AN ALTERNATE ROUTE [IN NORTHERN CALIFORNIA & THE SIERRA NEVADA] MOTORISTS ARE SUBJECT TO LANE REDUCTIONS IN EACH DIRECTION FROM THE YOLO/SACRAMENTO CO LINE TO LONGVIEW RD /IN SACRAMENTO/ (SACRAMENTO CO) FROM 2200 HRS EACH NIGHT TO 0600 HRS EACH MORNING MONDAY THRU THURSDAY & FROM 2300 HRS THURSDAY TO 0800 HRS FRIDAY THRU 8/31/13 - DUE TO CONSTRUCTION MOTORISTS ARE SUBJECT TO LANE REDUCTIONS IN EACH DIRECTION FROM ATLANTIC ST /IN ROSEVILLE/ TO ROCKLIN RD /IN ROCKLIN/ (PLACER CO) FROM 2200 HRS EACH NIGHT TO 0800 HRS EACH MORNING 7 DAYS A WEEK THRU 8/31/13 - DUE TO CONSTRUCTION