Skip to Content

San Luis Obispo County, California

Public Works
Wade Horton


County of San Luis Obispo Public Works Department
Receives Prestigious APWA Accreditation

976 Osos Street
Room 206
San Luis Obispo, CA 93408
Map & Directions

Business Hours:
Monday through Friday
8:00 am - 5:00 pm

(805) 781-5252


(805) 781-1229

 > County Home Page > Public Works and Transportation > Traffic and Transportation

Traffic and Transportation

The San Luis Obispo County Traffic Engineering Group is responsible for the safe and efficient movement of traffic on all County – Maintained roadways in the unincorporated area except for:


  • State Highways (Contact Cal-Trans (805) 549-3111)
  • City Streets (contact appropriate city or town)
  • Non- County maintained roads
  • Objectively define the future needs and costs of the System to meet Established County Policy


Services Provided  

  • Administer roads program to keep in good and safe repair the county's roads, culverts, bridges and traffic signs.

Currently We have:

194 bridge structures

1335 miles of roads total

   1092 miles of paved road

     241 miles of unpaved road

17 signalized intersections

54 street lights

4,628 culverts

151 cattle guards