CALTRANS (California Department of Transportation)
From Consumer Wiki
The California Department of Transportation (CALTRANS) is responsible for designing, building, operating and maintaining California's highway system, including rail and mass transit.
1120 N Street
Sacramento, CA 95814
PO Box 942873
CalTrans Highway Information Network
Automated feature announces road conditions of major California highways. The most frequently requested highways - I-5, US-50 and I-80 - are played first, followed by selective routes in numerical order.