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Slurry Seal


Click on the maps above to see which residential streets in the Finn Hill, Houghton and Norkirk will receive slurry seal in 2017.

(May 3, 2018)  -- The City of Kirkland will be extending the optimal lives this summer of 14.5 miles of residential streets in the Kingsgate and North Rose Hill neighborhoods. To achieve this, Kirkland's prospective contractor will apply a layer of slurry seal to each of these streets. The application process will close for up to eight hours the street to which it is applied.
SLURRY-SEAL-2018-coverHow Kirkland chose your neighborhood road for slurry seal and why (pdf 1.7 MB)

SLURRY-2016-street-comparison-imageHow time affects slurry sealed roads.
(pdf 286 KB)

STREETS-lifecycle-of-a-streetEducational Video: Street Preservation "Lifecycle of a Street"tv_camera

Map of Slurry Seal History
(pdf 1 MB)

Christian Knight
Neighborhood Services Coordinator
(425) 587-3831,
George Minassian, P.E., Ph.D.
Streets Engineer
(425) 587-3829,
SLURRY-2016-project-update-follow-up-imageKirkland extends the optimal life of neighborhood streets every year by applying a slurry seal to their surfaces.

This quarter-inch layer of water, aggregate and emulsified asphalt--oil--shields the pavement beneath it from weather and replenishes that pavement with new aggregate.

These functions can extend roads’ good conditions for five to 10 years. And all it costs is $1,600 per city block, compared to the $17,000 per city block it costs to repave a road or the $65,000 per block it costs to rebuild a road.

The cost-effectiveness of slurry seal is why thousands of municipalities throughout the nation use it and why the City of Kirkland has used it in every neighborhood throughout the City since 2002.  

These benefits, however, can be hard to see in the first few weeks after the streets first receive slurry seal. Initially, the surface is gritty, where it was once smooth. This initial grit is normal. But it is not permanent.

The first phase of your street’s transition toward smoothness is the street sweeping, which removes all of the loose gravel. This occurs approximately one week, three weeks and three months after application. The second phase of that transition is more subtle. And its main ingredient is time.

Over time, automobile traffic will dislodge the larger, sharper pieces of aggregate that initially give the road its rough, gritty surface. Traffic will also push the remaining aggregate deeper into the surface.

Within a year or so, the smooth road residents remember before slurry seal will be back—with an extra five to 10 years of high-quality life infused into it.

2012 Streets Levy

The 2012 Streets Levy is doubling the number of lane miles the City of Kirkland can slurry seal each year. Kirkland has a goal of treating every residential street in the City with slurry seal by the year 2032.

October to February: Street selection and design 
November to January: Surveying and data collection
March to June: Prepping, grinding, repaving and striping Lake Washington Boulevard
May to July: A.D.A. upgrades to curb ramps
July to September: Repaving arterials
July to September: Treating neighborhood roads with slurry seal

Title VI:  It is the City of Kirkland’s policy to ensure full compliance with Title VI of the Civil Rights Act of 1964 by prohibiting discrimination against any person on the basis of race, color, national origin or sex in the provision of benefits and services under any programs and activities. Any person who believes his/her Title VI protection has been violated, may file a complaint with the City of Kirkland.  For questions regarding Kirkland’s Title VI Program, or to file a complaint with the City of Kirkland, please contact the Title VI Coordinator at 425-587-3875 or

 Alternate Formats: Persons with disabilities may request materials in alternative formats — please contact the Title VI Coordinator at 425-587-3875 or Persons with hearing impairments may access the Washington State Telecommunications Relay Service at 711.

Public Works
Mon-Fri, 8 a.m. to 5 p.m.
123 5th Avenue, Kirkland WA 98033
Operations & Maintenance
Mon-Fri, 6:30 a.m.-3:30 p.m.
915 8th St, Kirkland WA 98033

General Inquiries

Engineering: T. 425.587.3800 | F. 425.587.3807
Operations & Maintenance: T. 425.587.3900 | F. 425.587.3902