Seal
Seal projects can be a chip seal, slurry seal, or cape seal.
 

Chip
A chip seal is the application of asphaltic emulsion, a type of road oil, immediately followed by an application of small rocks called chips. Chip seals are approximately 1/4 to 3/8 inch in depth over the existing road surface.

Application of chip seal

Slurry layer
A slurry seal is the application of asphaltic emulsion and fine aggregate.  Slurry seals are approximately 1/4 inch in depth over the existing road surface. 

Slurry layer applied to road

Cape Seal
A cape seal is a chip seal covered by a slurry seal.

Road workers resurfacing a road with cape seal

Seal-treated roads might undergo repairs to fix cracks and potholes.  These repairs are performed before the seal and won't be visible after.

Road workers resurfacing a section of road.

These types of seals are integral and cost-effective treatments utilized by the County to maintain roadways and extend their useful life.

Related:

Road Treatment: Overlay

Road Treatment: Reconstruction