9/2 to 9/12: Chip Seal Pavement Preservation Work on SE Issaquah Fall City Road between SE Duthie Hill Road and 329th Ave SE

Lane Restrictions with pilot car

SE Issaquah Fall City Road between SE Duthie Hill Road and 329th Ave SE

Contractor crews working for King County Road Services will begin a multi-day process of applying Chip Seal to:

• SE Issaquah Fall City Road between 328th Way SE and SE 40th Street
• SE Issaquah Fall City Road between SE Duthie Hill Road and SE 40th Street
• 328th Way SE between 329th Avenue SE and SE Issaquah Fall City Road

The crew is expected to work from 7:30 a.m. to 6 p.m. from September 2 to 12, 2025. Work on Saturday is likely. Crews will not be on site each day as the road needs to cure between steps.  Crews will use a pilot car to guide traffic through the work zone. Please expect delays of up to 20 minutes and drive very slowly to keep the gravel on the ground. 

This work can be rescheduled due to weather, equipment, materials, or crew availability.

What is Chip Seal

• Asphalt mixed with water is sprayed on the road.
• A layer of small crushed gravel (chips) is spread and rolled in.
• The surface cures in 1–2 days, then loose gravel is swept away and an additional sealant is applied to the road.
• Helps seal small cracks, improves traction, and extends road life.

Why chip seal here? With limited funding, chip seal lets us preserve more miles of roadway across unincorporated King County. While overlay is more durable, it’s also much more costly. Chip seal is a practical way to keep neighborhood roads safe and functional.

Addressing common concerns:

• Crews sweep up loose gravel after the curing process.
• We work to protect driveway connections and drainage.
• Feedback from residents helps us improve coordination with contractors on current and future projects.
• Please drive slowly in the work area to avoid kicking up loose gravel.

We know construction can be inconvenient, and we appreciate your patience as we work to keep our roads safe and maintained.

Additional resources to stay informed:

• Sign up for Road Alerts to receive an email or text message when Road Services work is scheduled in your community.
• Visit the MyCommute Map to see current and upcoming road work projects in unincorporated King County.
• Contact the 24/7 Road Helpline at 206-477-8100 (Relay 711) or email roads@kingcounty.gov to report an issue on the road.
• Check out the Road Resurfacing website to learn about the 2025 projects

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