2016 Maintenance Chip Seals


Application of chip sealing surface treatment on various County roads. Work executed by Transportation & Public Works Road Maintenance crews (this is not a contract project).

What is a chip seal?


  • Burnside Road, from Watertrough Road to Barnett Valley Rd (Road ID 69012, from postmile 10.00 to to 12.64)
  • Chalk Hill Road, from Pleasant Avenue to Morse Road (Road ID 8806, from postmile 10.00 to 13.73)
  • Corona Road, from Ely Rd to City Limits (Road ID 5708, from postmile 10.72 to 11.14)
  • East Napa Street, from Sonoma City Limit to 8th Street East (Road ID 5506, from postmile 10.31 to 10.64)
  • Ely Road, from Old Redwood Hwy to Corona Rd (Road ID 5704, from postmile 10.00 to 11.16)
  • Graton Road, from Bohemian Hwy to Atascadero Creek (Road ID 7901, from postmile 10.00 to 15.26)
  • Madrone Road, from Hwy 12 to Arnold Dr (Road ID 6605, from postmile 10.00 to 10.91)
  • Skillman Lane, from Bodega Ave to Corona Rd (Road ID 57029, from postmile 10.00 to 12.55)
  • Stewarts Point Skaggs Springs Road, from hillside viaduct (Bridge # 20C0531) to Old Skaggs Springs Road (Road ID 0001B, from postmile 26.57 to 33.34)
  • Stewarts Point Skaggs Springs Road, from Old Skaggs Springs Road to Warm Springs Creek (Road ID 0001C, from postmile 33.34 to 34.32)
  • Vine Hill Road, from Hwy 116 to Laguna Rd (Road ID 7904A, from postmile 9.71 to 13.01)
  • Warm Springs Road, from Bennett Valley Rd to Hwy 12 (Road ID 6602, from postmile 12.40 to 15.14)
  • Woolsey Road, from Old Trenton Rd to Heighs Rd (Road ID 79081, from postmile 10.00 to 12.00)


Total Miles of Treatment: 32.79

Contact Information

Business Hours
Monday – Friday
8:00 AM – 5:00 PM
Contact us by Phone
Office Location
La Plaza B
2300 County Center Drive
Suite B 100
Santa Rosa, CA 95403
38.462023, -122.725381

Road Paving Projects

Sonoma County Pavement Preservation Program


See information about road paving projects in unincorporated Sonoma County.

Standard Plans

Construction Standards for County Roads


Standard plans for construction of roads and related structures.