Contact HPMS
HPMS Branch Chief, Eric Y. Wong
Email Eric Y. Wong
Phone: (916) 654-6839
Mailing Address:
California Department of Transportation
Highway Performance Monitoring System (HPMS) -MS #38
P.O. Box 942874
Sacramento, CA 94274-0001
Office Location:
California Department of Transportation
Division of Research, Innovation, and System Information (DRISI)
1120 N Street, RM 5525
Sacramento, CA 95814