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Public Works > Operations & Maintenance > Road Operations

Road Operations

Road surface treatments

Asphalt Overlays

This is a surface treatment applied to arterial and collector roads for structural assistance in the urban area. We target an overlay of 2". Some times we will apply a thin lift (1") in subdivision or access roads that have surface irregularities.

Open Graded Cold Mix Overlays

This is a surface treatment applied to arterial and collector roads for structural assistance in the rural area. We target a 2.0" overlay for these roads.

Chip Seal

This is a surface treatment that is applied to rural roads to seal the surface and prevent moisture from infiltrating the subgrade. These roads are structurally sound and do not need structural assistance.

Slurry Seal

This is a surface treatment that is applied to the access roads or subdivision in the urban area to prevent moisture from infiltrating the subgrade. These roads are structurally sound.

Cape Seal

This is a surface treatment that is applied in the urban area to roads that are in between a seal or overlay. This is a two step process. A chip seal is applied followed by a slurry seal.

Base Stabilization

A road that requires a base stabilization process is rough and uneven and is in need of structural assistance. The roads is pulverized, cement is added, the road is graded and rolled and a surface treatment is applied.

Clark County Public Works - Operations Division:
Greg Shafer and Charles Masco
, Operations Managers
Street Address: 4700 NE 78th Street, Vancouver, WA 98665
Mailing Address: 4700 NE 78th Street, Vancouver, WA 98665
Main phone: (360) 397-2446 | FAX: (360) 576-0304
TTY: (360) 397-6057
E-mail: pubwks.cservice@clark.wa.gov

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