The City of Santa Rosa maintains a 510-mile street system with roadways varying in size from two-lane residential to up to six-lane arterial streets. To help maintain and extend the life of our roadway, Transportation and Public Works streets crews work year-round maintaining broken pavement surfaces by potholing, crack sealing and patching. Slurry seal treatments can be applied to streets in relatively good condition so they can remain in good condition longer. Each year the City of Santa Rosa slurry seals the pavement of about 2.5 million square feet of City streets. 

This year, the 2023 Slurry Seal residential pavement treatment will be applied in conjunction with the Pavement Preventive Maintenance program on arterial streets. Pavement treatments and restriping for both residential and arterial streets are expected to take place summer 2023. Residential streets receiving slurry seal application this summer are primarily located in and around the downtown core. The arterial streets receiving slurry seal treatment include portions of Mendocino Avenue, Fourth Street, and Montgomery Drive. The arterial streets will also receive striping modifications based on community feedback received through the Local Road Safety Plan. View project area maps. A daily schedule map will be available closer to the start of the project.

Slurry seal is a preventive maintenance treatment which involves applying an emulsified asphalt mixture over the existing street surface. It helps protect streets from water penetration, provides a new surface with improved skid-resistance, and extends the life of the roadway. Prior to placement of slurry seal, cracks in the roadway will be sealed, pavement repairs made, existing striping removed, and roads will be swept clean. After slurry has cured, all roads part of the project will be restriped.

Learn more about the City’s Slurry Seal Project at srcity.org/SlurrySeal.