Regarding ACH conditions, refer to
http://www.dot.ca.gov/hq/roadinfo/display.php?page=sr2
currently:
"SR 2
[IN THE SOUTHERN CALIFORNIA AREA]
IS CLOSED FROM ISLIP SADDLE TO BIG PINES (LOS ANGELES CO) - DUE TO A ROCK
SLIDE - MOTORISTS ARE ADVISED TO USE AN ALTERNATE ROUTE
CHAINS OR SNOW TIRES ARE REQUIRED FROM 1 MI EAST OF NEWCOMB'S RANCH TO
ISLIP SADDLE (LOS ANGELES CO)"