Who do I contact if I have questions about the road surface treatment work?

Schedule information regarding the chip seal application can be obtained by calling the Public Works Department Maintenance Division at (925) 313-7000 or emailing Maintenance. Scheduling information regarding the contracted slurry seal, cape seal, and micro-surface seal application can be obtained by contacting the Public Works Department’s Construction Division at (925) 313-2320 or emailing Public Works.  Visit our Pavement Management Program webpage for more information.

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1. What is a cape seal?
2. What is a Chip Seal?
3. What is a micro-surface seal?
4. What is a slurry seal?
5. What is the construction work occurring on a County Road or Flood Control Facility?
6. When does the County perform its surface treatment work?
7. Who do I contact if I have questions about the road surface treatment work?
8. Why do I not see construction activity associated with the road surface treatment when I drive by?
9. Why do they spray oil on the road before they place the asphalt during a road surface treatment?
10. There is construction work occurring on a County Road or Flood Control Facility. What is going on?
11. Where can I find the current and future county road projects?
12. What can I do to help make the road surface treatment work successful?
13. When will roadwork associated with the road surface treatment be finished?
14. Why are road surface treatments necessary?
15. Will I still have access to my driveway during the road surface treatment work?
16. Will traffic be severely disrupted due to the road surface treatment work?