How we support your community

The Transportation Section maintains approximately 2,500 miles of County roads across the unincorporated communities of San Bernardino County.

  • Roads and potholes
  • Traffic signals and beacons
  • Street signs and markings
  • Bridges and culverts
  • Drainage systems
  • Guardrails and safety features
  • Storm and wildfire damage

See something? Let us know.

Your reports help us respond quickly and prioritize repairs across 2,500 miles of County roads.

Potholes, Signs and Drainage

Please provide the location and a brief description so we can assist you as efficiently as possible.

See Click Fix

Traffic Signal Not Working?

Please provide the location and a brief description so we can assist you as efficiently as possible.

Email DPW Traffic

After hours, weekends & holidays

Call (909) 356-3805 to report an urgent roadway hazard.

Traffic Requests

Ask the County to review traffic-control measures in your neighborhood. We study each request for safety, traffic, volume, and latest engineering standards.

  • Traffic Signs
  • Speed Evaluation
  • Parking Signs
  • Street Name Signs
  • Pedestrian Signs
  • Road Markings
  • Sight Evaluations

Working in the Roadway

Planning work that affects a County-maintained road? A permit is required to help ensure work is done safely and meets County standards. 

Access to Plans and Records 

Approved street improvement plans for County roads in unincorporated areas are available for public review. 
(909) 387-7940.

Development Review

When new development is proposed in unincorporated areas, our Traffic Division reviews projects to ensure roadways remain safe and efficient as the community grows.  Projects that generate significant traffic, typically more than 100 peak-hour trips, or are located in congested areas may be required to submit a traffic study. We review and approve traffic studies, trip generation reports, and Vehicle Miles Traveled analyses. 

Traffic Study Guidelines
Scope for Traffic Study
Vehicle Miles Traveled Analysis Template

Traffic Will Also

  • Review street improvement plans for proper signing and striping 
  • Determine transportation-related development fees 
  • Ensure roadway improvements meet County standards 

Traffic studies and related documents must be submitted through EZ Online Permitting (EZOP). An initial deposit is required for review. Development-related transportation fees help fund necessary road improvements that support continued growth in our communities. 

DPW Quick Links

Quick access to frequently requested Transportation documents and tools.