How does SDOT maintain Seattle’s streets? One way is through a process called “microsurfacing,” which extends the life of asphalt surfaces in good condition. The process includes applying a thin emulsion to create a protective seal on the road’s surface. This “seal coat” better withstands regular wear and prevents the need for larger, more expensive road repairs in the future.
The Arbor Heights neighborhood of West Seattle is the most recent to receive this microsurfacing treatment. SDOT crews have spent 4,000 work-hours since last fall preparing targeted asphalt streets in the area by filling pot holes, sealing pavement cracks and making other spot repairs. The microsurfacing itself will take place beginning Monday, August 18, and will be staggered over the area for the next seven to eight weekdays. Since the emulsion requires several hours to dry and harden after application, the road will remain closed for two to four hours. Although inconvenient, residents have been asked to leave their vehicle on the next block over on the days their own street will be microsurfaced, or avoid driving that day. Additionally, residents should avoid walking on or bringing pets onto the roadway until the sealant dries.
Even though weather dependent, the work is expected to be complete before Labor Day. To learn more, visit our Microsurfacing Program or 2104 Microsurfacing Project web pages. If you still have questions about the project, contact Art Brochet at firstname.lastname@example.org.