Chip Seal

A single chip seal involves spraying liquid asphalt on the pavement followed by the spreading of a layer of small aggregate (chips) that is embedded into the oil. 

A double chip seal is a single chip seal with a second application (layer) of liquid asphalt and small aggregate. 

Chip seal surface treatment applications are performed by Public Works Department Maintenance crews. Single and double chip seals are typically used on arterial and collector roads that have a significant amount of wear and high traffic volume.