Slurry Seal

This content has been professionally translated in other languages.

Este contenido ha sido traducido profesionalmente a otros idiomas.

此內容已被專業翻譯成其他語言。

Nội dung này đã được dịch chuyên nghiệp sang các ngôn ngữ khác.

Qoraalkan waxaa si xirfad leh loogu turjumay luqado kale.

Ang nilalamang ito ay propesyonal na isinalin sa ibang mga wika.

ይህ ይዘት በሙያዊ በሌሎች ቋንቋዎች ተተርጉሟል።

Updated: August 15, 2025

What’s happening now?

Changes to Paving Schedule 

Due to the weather we have cancelled work that was expected to happen on August 15. All streets scheduled for work on August 15 are now rescheduled for Wednesday, August 20. The streets resecheduled are included in the table below:

Wednesday, August 20, 2025

Construction Area From To
46 Av S S Genesee St  S Snoqualmie St
S Farrar St Dead End 42 Ave S
42 Ave S S Dawson St Rainier Ave S
42 Ave S S Farrar St S  Dawson St
48 Ave S S Mayflower St S S Brandon St
48 Ave S S Mayflower St N S Mayflower St S
48 Ave S S Bennet St S Mayflower St N
S Bennett St 47 Ave S 48 Ave S
S Bennett St 46 Ave S 47 Ave S
S Mayflower St  48 N Ave S 50 Ave S
S Alaska St 43 Ave S 44 Ave S
S Alaska St 44 Ave S 45 Ave S
S Alaska St 45 Ave S 46 Ave S
47 Ave S S Genesee St S Oregon St
47 Ave S S Oregon St Dead End S
S Oregon St 47 Ave S 48 Ave S
43 Ave S S Adams St S Genesse St
43 Ave S S Dakota St S Adam St
43 Ave S Lake Washington BV S S Dakota St
44 Ave S Dead End N S Alaska St
45 Ave S Dead End N S Alaska St
S Brandon St Seward Parl Ave S 57 Ave S
S Adams St 42 Ave S 43 Ave S


In addition, the following streets that weren’t able to be paved on their original scheduled dates are now rescheduled for Thursday, August 21. You can review the streets affected by this change in the table below:

Thursday, August 21, 2025

Construction Area From

To

S Garden St Rainier Av S

Orchard Pl S

Orchard Pl S S Orchard St S Garden St
S Orchard S Orchard Pl S Seward Park Av S
S Frontenac St 51 Ave S 52 Av S
56 AV S (Upper & Lower)  S Holly St Dead End S
46 AV S Dead End N S Graham St
45 AV S S Bennett St S Brandon St
S Bennett St Dead End W 45 AV S
S Warsaw St 57 Ave S Dead End
Lafern Pl S Dead End N S Graham St

While we hope there will be no further changes to the schedule, occasional unforeseen circumstances can arise. Thank you for signing up for email updates to stay informed — we encourage you to share the sign-up link with your neighbors so they can stay updated as well. 

Project Overview

Our paving project will focus on streets in northeast and southeast Seattle. Below are maps showing where the work will happen. Only streets in orange will be treated.

Map showing where we will be working near Lake City Way N and 115th St

Click this link to download the full map.

Map of where we will be working in Seward Park

Click this link to download the full map.

What to Expect:

  • Full street closures where all parking will be restricted, and access to businesses might be temporarily affected. We will put No Parking signs on the street before we begin work, and they will remain until the slurry seal dries. 
  • Up to three days prior to any work, you will see “No Park” signs go up along the impacted streets. On-street parking will not be permitted on the selected block on the day of the slurry seal treatment.
  • The street will be closed for up to eight hours after the treatment is applied in order to properly dry. During this time, you won’t be able to drive, park, or walk on the new street surface. 

On the day we begin work in your neighborhood:

  • You won’t be able to drive, park, or walk on the new street surface for up to eight hours. If your car is parked on the street when we start work, your car will be towed.
  • You'll notice our teams getting ready to work and talking with each other before 7 AM.
  • You'll also notice large trucks and machines coming, going, and being used. There’ll also be noise, dust, and probably vibrations.
  • Crews will sweep the street before applying the slurry seal material. 
  • You should plan to use an alternate way around your neighborhood.

Here’s what you will need to know about the work:

  • If you live on a street with no sidewalks, the slurry seal only goes to the edge of the street.
  • Pedestrians and pets should keep off the slurry seal material until the street is reopened for traffic. The uncured material is difficult to remove from clothing, shoes or paws.
  • If you are conducting private construction that may impact the road, please complete that ahead of our project.
  • If your street is scheduled for work on your garbage or recycling pick up day, we will coordinate an early pick up.

Questions?

Questions about garbage and recycling, or if your garbage was not picked up and it should have been:DOT_SlurrySeal@seattle.gov or (206) 775-8742.

Learn about the Slurry Sealing Process

A slurry seal is a thin layer of asphalt mixture spread over a street to protect it and make it last longer. It fills small cracks and smooths the surface, kind of like putting a fresh coat of paint on a wall to seal and protect it. It's used on streets that are still in pretty good shape to prevent bigger damage later.

As shown in this short video, as the slurry seal equipment moves along the street, the mixture is fed into a spreader box. The material is spread across the full width of a traffic lane and then smoothed out. The equipment also feathers the edges for a smooth transition. All this happens in one step.

After the seal coat cures (hardens), the street can be reopened and used normally. However, there may be parking restrictions and road closures for the entire day the work is scheduled.

Our street looks fine. Why resurface it?

Flexible pavements (typically asphalt) need resealing to protect them from damage from water (rain) and sun. If left untreated, the surface becomes brittle and may crack. Resealing prevents costly repairs. Regular preventive maintenance is the most cost-effective way to maintain streets.

Preparing the street: fixing potholes, cracks, etc.

It is essential that structural damage is repaired prior to the slurry seal process. SDOT crews will begin to patch damaged areas of the selected roads well in advance of the slurry seal operation. In addition, low hanging branches and overgrowth may need to be trimmed to allow for the slurry seal equipment to access the roads. On the day of slurry sealing, crews will sweep the street before applying the slurry seal material.

Access to Translation

If you would like more information in your language about the paving work we’re doing in your neighborhood, please call us at (206) 775-8742. When you call, tell us your preferred language in English. Translation and interpretation services are available for free.

Project Library

Transportation

Adiam Emery, Interim Director
Address: 700 5th Ave, Suite 3800, Seattle, WA, 98104
Mailing Address: PO Box 34996, Seattle, WA, 98124-4996
Phone: (206) 684-7623
684-Road@seattle.gov

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The Seattle Department of Transportation (SDOT) is on a mission to deliver a transportation system that provides safe and affordable access to places and opportunities for everyone as we work to achieve our vision of Seattle as a thriving, equitable community powered by dependable transportation.