Slurry Seal Treatment Project

slurry seal

The City of Renton's 2026 slurry seal project begins July 21. Select neighborhood streets will close temporarily during construction.

Key Project Details

  • Hours: Monday through Friday, 8 a.m. 5 p.m.
  • Impact: Temporary street closures and restricted street parking.
  • Benefits: Extends pavement life and prevents costly future repairs.

Please review the 2026 Slurry Seal Schedule in the link below for specific temporary street closure locations and dates. Impacted neighborhoods include:

  • Kennydale
  • Benson
  • North Highlands
  • South Highlands
  • East Plateau
  • West Hill

2026 Slurry Seal Schedule & Neighborhood Maps(PDF, 5MB)

Slurry seal is a cost-effective preventative maintenance treatment that helps preserve the life of road pavement. It coats the pavement with a layer of emulsified asphalt mixed with fine rock to seal the road surface from the harmful effects of water infiltration and the sun, extending the life of the pavement from five to ten years.

FAQs

Where is slurry seal applied to?

Roads are selected for preventive maintenance based on the age of pavement and on-site inspection by city staff. In the past, mostly low-volume non-arterial streets have been slurry sealed. 

Project Description: Project-Description.pdf(PDF, 5MB)

What should I expect?

  • Crews will begin work on these streets at 7 a.m. and complete the work the same day by 5 p.m.
  • Several “No Parking” signs will be placed on the streets two days before to prepare for this closure. 
  • Vehicles, pedestrians and pets will not be allowed on the road on the day of the slurry seal. 
  • Emergency response vehicles will be allowed at all times.
  • Sidewalks will remain open at all times. 
  • Vehicles left on the street on the day of the slurry seal application will be towed.

 

Is loose gravel expected?

Yes. Loose gravel is a normal and expected part of the slurry seal process. Slurry seal is a liquid mixture of asphalt emulsion, water, and small aggregate stones. As it cures, the road naturally "sheds" a top layer of these small stones.

The loose gravel indicates that the mix is curing and setting properly. The shedding is a necessary step before the surface completely stabilizes. It does not mean the treatment is failing. 

 

 

My vehicle is currently disabled and I’m unable to move it. What should I do?

Please make immediate arrangements to move your vehicle if it's parked on a street marked on the maps above. Unattended vehicles remaining on the street without prior arrangement will be towed.

How will I know if the schedule changes?

In the event of a schedule change, residents will receive a 72-hour notification before treatment. We encourage you to visit this webpage for the latest schedule updates.

 

Slurry seal work is happening the same day as my garbage/recycling collection. What should I do?

The daily schedule prioritizes and fully supports uninterrupted garbage collection. Your collection service will not be impacted.


How long does it take a neighborhood street to smoothen out?

Initial smoothing takes two to four weeks. While full curing takes three to six months, it can take longer depending on traffic, as slurry seals relies heavily on everyday neighborhood traffic.

 

 

After Application

  • Slurry seal is brown and sticky, and residents will not be able to drive, bike, walk, or allow their pets on the street during the day of construction until the slurry seal has fully cured (will look black and dry).  
  • The road’s new surface will have more friction and shed some of the larger aggregate, creating small gravel deposits on top of the new slurry seal. Crews will sweep the streets three days after application, one week after application, three weeks after application, and three months after application. Over time, the road surface will smooth out.

 

 

Title VI

Your Rights against Discrimination under Title VI of the Civil Rights Act of 1964

The City of Renton hereby gives public notice that it is the City’s policy to assure full compliance with Title VI of the Civil Rights Act of 1964, the Civil Rights Restoration Act of 1987, and related statutes and regulations in all programs and activities. Title VI requires that no person shall, on the grounds of race, color, or national origin be excluded from the participation in, be denied the benefits of, or be otherwise subjected to discrimination under any Federal Aid Highway program or other activity for which the City receives federal financial assistance.

Any person who believes they have been aggrieved by an unlawful discriminatory practice under Title VI has a right to file a formal complaint with the City of Renton. Any such complaint must be filed with the City of Renton’s ADA/Title VI Coordinator within 180 days following the date of the alleged discriminatory occurrence. Title VI discrimination Complaint Forms may be obtained from the City of Renton Public Works Department at no cost to the complainant.

To file a Title VI discrimination complaint, contact: