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You can also call 1-800-427-7623 for current highway conditions.
ADA Access Service Request
Caltrans Vehicle Misuse and/or Caltrans Driver Issues
Public Records Act (PRA) Requests
Traffic or Work Zone Concerns
Independent Office of Audits and Investigations
Business & Economic Opportunity
Procurement and Contracts
Research Innovation and System Information
Right of Way and Land Surveys
Data WIM systems provide 24-hour traffic information at key locations on California State Highways.
This overview of data WIM systems includes topics such as manufacturers, specifications, system capabilities, automation, and portability.
Map of WIM locations in California
Currently there are 110 data WIM collection sites in operation across California. Several of these sites are under construction, and further expansion of WIM systems are planned for the coming years