Preventive Surface Treatment Projects

2014 Preventive Pavement Treatments by Neighborhood

Many local neighborhood streets are part of the 2014 surface treatment work and include Northeast Burton Road/28th Street, Southeast McGillivray Boulevard, Southeast Mill Plain Boulevard, Southeast Tech Center Drive, Southeast 15th Street and Southeast 192nd Avenue. The map above shows residential areas directly affected by paving work planned for this summer – look for your neighborhood highlighted in orange. Please click here for a complete list of the streets scheduled for preventive surface treatments. Click here to view this year's map, including Microsurfacing, Slurry Seal, Chip Seal and Cape Seal projects.

Please note: Schedules and areas to be paved are tentative and may be adjusted due to weather and construction conditions.

There are a variety of preventive surface treatments used to extend the life of streets at a much lower cost than a standard asphalt overlay. These surface treatments include microsurfacing, slurry seal, chip seal and cape seal. The type of treatment depends upon several factors, such as current surface condition, carrying capacity and travel use.

These projects alternate each year between the east and west sides of Vancouver. The 2014 focus will be mainly east of Interstate 205.

Each year, the City of Vancouver evaluates approximately 290 miles of paved city streets and identifies areas where surface treatments could go the farthest in extending the life of the street and providing residents with better driving conditions. All paving applications are highly weather dependent. In case of rain, surface treatment work must be rescheduled.

Curb Ramp Improvements Prior to Surface Treatments

As a precursor to the surface treatment work, the City has hired Keystone Contracting to install new intersection curb ramps or retrofit existing curb ramps at various intersection locations to meet compliance requirements of the Americans with Disabilities Act. ADA curb ramp construction will be seen at these locations:

  • NE 122nd Avenue at NE 42nd Street, NE 46th Street
  • NE 124th Avenue at NE 35th Street, NE 39th Street
  • SE McGillivray Boulevard at SE Chkalov Drive
  • SE Mill Plain Boulevard at SE Parkcrest Avenue, SE 160th Avenue, SE 164th Avenue, SE Tech Center Pl
  • NE Hearthwood Boulevard at 400 block cul-de-sac, NE 5th Circle, NE 6th Circle, NE 7th Circle, NE 7th Way, NE 8th Street
  • NE 9th Street at NE 146th Avenue, NE 150th Avenue
  • NE Angelo Drive at NE Four Season Lane
  • SE Tech Center Drive at SE Redwood Circle, SE Sequoia Circle, SE Tech Center Pl
  • SE 15th Street at SE Tech Center Pl, SE 171st Pl, SE 176th Avenue, SE 177th Avenue, SE 179th Ave, SE 181st Avenue, SE 182nd Avenue, SE 185th Avenue, SE 187th Avenue, SE 189th Avenue
  • SE 192nd Avenue at SE 34th Street, 2800 Block, SE 25th Street, SE 20th Street, SE 15th Street

What to Expect Prior to Paving Work?

In most cases, residences and businesses fronting impacted streets receive door hanger notices in advance of paving. Within construction zones, drivers are asked to be prepared for delays, watch for traffic changes, proceed slowly, and be alert to construction workers, bicyclists, pedestrians and other motorists. Regardless of the type, all paving applications are highly weather dependent.

Construction hours are typically from 7 a.m. to 5 p.m., Monday through Saturday, though work may continue as late as 8 p.m. if needed. All paving applications are highly weather dependent.In case of rain, paving must be postponed and rescheduled.


Microsurfacing begins as a coarse liquid application of dense-grade aggregate, asphalt emulsion, water and mineral fillers. The quick-setting emulsion allows traffic to begin using the new surface in a short time, as little as an hour depending upon conditions. As the product cures, the surface becomes smoother. The finished sealant forms a thin shell over the street's existing asphalt surface, extending the life of the underlying pavement. Micro-surfacing applications are generally applied on arterial and higher volume streets, and the quick-setting emulsion allows traffic to begin using the new surface in a short time, as little as an hour depending upon conditions. Microsurfacing provides more durability than a slurry seal.

The benefits of microsurfacing include:
- Reduced user delays
- Corrections to minor defects and ruts
- Surface improvements
- Greater durability than slurry seal for high traffic areas
- Increased skid resistance
- Cost-effective, long-lasting pavement preservation

Slurry Seal, Chip Seal & Cape Seal

Slurry Seal is a mixture of fine rock, asphalt, and water placed on the pavement about ¼-inch thick to protect the surface from sun and rain. Slurry seal applications are generally applied on lower volume local and residential streets. 

Chip Seal is a layer of emulsified asphalt and then a layer of new rock. This technique is familiar in Clark County, other cities and other counties across the country. A chip seal treatment typically extends the life of a road by seven to 10 years and provides a new sealed surface at a fraction of the cost of a standard asphalt overlay.

Cape Seal is a surface treatment that begins with a chip seal and then combines a final slurry seal application, greatly extending the life of the roadway. Being used for the first time in Vancouver this year.


Construction questions during summer street work:
Department of Public Works, Construction Services
(7:30 a.m. to 4:30 p.m., Monday through Friday)