California Department of Transportation
 

 

Q How many signs does California have on its highway system?
   
A.

The California Department of Transportation (Caltrans) currently maintains approximately 500,000 traffic signs on our State highway system. Of the total, approximately 480,000 are ground-mounted regulatory, warning, construction or service signs constructed primarily of aluminum substrate with retroreflective sheeting background and copy. The remaining 20,000 signs are overhead guide signing.