Open through March 11, 2021
Welcome
Stride Bus Rapid Transit is coming to north Lake Washington.
Welcome to the SR 522/NE 145th Stride S3 Line Bus Rapid Transit (BRT) Project online engagement platform!
Register for an upcoming online public meeting!
We are hosting online public meetings to showcase the proposed preliminary designs for each city along the project corridor. Please join us to learn more about the design in your neighborhood, ask questions and share your thoughts.
If you’re not able to make it to the virtual town halls, watch the recorded presentation from our project team.
Check out our interactive map of the project!
Explore transit and road improvements happening near you! View the interactive map of our latest designs for the S3 Line corridor or click the topics below to learn more and share your thoughts:
How to use this site:
- Click the + button to see more information
- Click on hyperlinked text to open new pages or to display pop-up info boxes
- Preliminary design: Refers to the 30% design level that the project team has been working towards since mid-2019. The footprint for the project is largely determined at this level. Later this spring, the project team will complete preliminary design work and ask the Sound Transit Board to identify the project to be built, which may enable the project to advance into the design and construction phases.
- Stride S3 Line: We are now using “Stride S3 Line” as the new name for the SR 522/NE 145th BRT service.
Translation services
If your language is not available, please contact: 1-800-201-4900 / TTY Relay: 711 or email accessibility@soundtransit.org for alternative formats.
Corridor map and design updates
View the updated design in your neighborhood.
Our preliminary design and engineering work is almost complete! Below, you can use our interactive map to navigate the project corridor and explore our proposed preliminary design.
How to use this map:
- Click and drag your mouse (or place and drag your finger) to navigate around the map.
- Check or uncheck the boxes in the legend to view different "layers" of the map, which includes elements from a past version of the design from 2019 as well as the current proposed preliminary design in 2021. You can switch between these layers or view both layers at once to see how we have updated the design between 2019 and 2021.
- Zoom in and out using the + and – symbols in the bottom-right corner. As you zoom closer to an area, you can see more detailed design elements, such as new sidewalks and Business Access and Transit (BAT) lane locations.
Click on an icon or line on the map to view more information about that design element. Icons and lines that you can click on are listed in the legend.
Please note: This interactive map is for illustrative purposes only. Design elements depicted on the map are approximate and are based on the preliminary design plans. This map is not used for project planning or engineering purposes. If you have questions about the interactive map, please contact the project team at brt@soundtransit.org.
Project corridor
Corridor-wide:

Seattle / Shoreline:
Shoreline South / 148th Link light rail station


Lake Forest Park:
Bothell:
SR 522 / I-405 Transit Hub

Woodinville:
Example illustration of the BRT station design in Shoreline/Seattle at NE 145th Street and 15th Avenue NE
Example illustration of the BRT station design at the Lake Forest Park Town Center at SR 522 and Ballinger Way NE
Since we first began working towards preliminary design in 2019, we have made a number of changes to reflect the feedback we received from community members, elected officials, city staff, transit agency partners and other stakeholders. We have also made changes to reflect a greater understanding of the design challenges and opportunities. See below for a summary of how we’ve updated the design.
Proposed updates to station locations:
We assessed station locations based on ridership potential, use by our transit partners, non-motorized access and community input. We propose that the project:
- Does not include a Stride BRT station at 80th Avenue NE in Kenmore; it would continue to be served by King County Metro (KCM).
- Includes Stride BRT stations at 61st Avenue NE in Kenmore and NE 165th Street in Lake Forest Park.
- Moves the Stride BRT station in Seattle/Shoreline planned for the intersection of NE 145th Street and SR 522, west to 30th Avenue NE on NE 145th Street to improve pedestrian access and safety.
- Does not include the Stride BRT station at 25th Avenue NE in Shoreline/Seattle. The stop will continue to be served by KCM, providing frequent service to the future light rail station.
- Moves the Stride BRT station in Bothell planned for the intersection of NE 185th Street and 108th Avenue NE, north to Beardslee Boulevard and a block west of 110th Avenue NE.
Reducing roadway widening on NE 145th Street in Seattle/Shoreline:
- We plan to reduce the length of needed roadway widening on the north side of NE 145th Street between 15th Avenue NE and 5th Avenue NE (see the City of Shoreline’s related NE 145th Street and I-5 Interchange Project). The project does not include widening the roadway at NE 145th Street and 25th Avenue NE.
- Sound Transit is proposing transit priority lane reconfigurations between 30th Avenue NE and SR 522 on NE 145th Street, rather than adding an eastbound lane, to improve the environment for pedestrians and transit riders using the planned BRT station at this location.
Shifting the footprint west of SR 522 in Lake Forest Park:
- We have refined the design between NE 155th Street and half a block south of 41st Avenue NE in Lake Forest Park. These refinements include shifting some roadway widening to the west side of SR 522 to reduce property impacts and the overall change to the neighborhood. This shift west will result in construction of a new retaining wall on the west side of SR 522.
- We have reached out to property owners on both sides of the roadway to discuss what this means for potential impacts to their properties.
Design updates in Bothell:
- Our refined design in Bothell relocates the connection between two BRT routes, the Stride S3 line and the Stride S2 line (a new north-south BRT route to operate primarily along I-405). The connection for these two routes has moved from the I-405/NE 195th interchange to the SR 522/I-405 interchange, where a Transit Hub is being designed by WSDOT to include a safe and accessible pedestrian connection to the University of Washington (UW) Bothell/Cascadia College campus.
- The refined design also includes a northbound bus-only lane on SR 522 from north of 96th Avenue NE to 98th Avenue NE that makes use of the current center-turn lane. This will improve speed and reliability for future bus operations where it will be needed most, while minimizing additional width required for the roadway through this area.
- Community Transit is proposing to use Stride BRT stops for their bus service in Bothell at 104th Avenue NE, Beardslee Boulevard and UW Bothell/Cascadia College and Beardslee Boulevard and NE 195th Street.
Updates to Woodinville bus service:
- To connect Woodinville commuters with East Link light rail for faster and better connections to Redmond, Seattle and Bellevue, we are proposing to serve Woodinville with a new ST Express route. This service would start when the Stride S3 Line service begins.
- During peak hours, the ST Express route would serve downtown Woodinville and the SR 522/I-405 Transit Hub in Bothell before traveling in the I-405 express toll lanes to the Bellevue Transit Center, where riders could connect to light rail and other bus service.
- During off-peak hours and on weekends, this route would serve downtown Woodinville and the SR 522/I-405 Transit Hub in Bothell, where riders could connect to the S3 or S2 Stride BRT lines.
- This service also offers the potential to serve additional stops in downtown Woodinville. Stay tuned for opportunities to provide feedback as the ST Express service is designed.
The project team’s proposed preliminary design is as follows:
A total of 12 Stride BRT stations between the future Shoreline South/148th Link light rail station in Shoreline and the SR 522/I-405 Transit Hub in Bothell. The proposed stations will be located at the following intersections:
- In Shoreline and Seattle -
- 5th Ave NE and NE 148th Street (at the future Shoreline South/148th Link light rail station)
- NE 145th Street and 15th Avenue NE
- NE 145th Street and 30th Avenue NE
- In Lake Forest Park -
- SR 522 and NE 153rd Street
- SR 522 and NE 165th Street
- SR 522 and Ballinger Way NE (next to the Lake Forest Park Town Center)
- In Kenmore -
- SR 522 and 61st Avenue NE
- SR 522 and 68th Avenue NE
- SR 522 and 73rd Avenue NE (at the Kenmore Park-and-Ride)
- In Bothell -
- 98th Avenue NE and NE 182nd Street
- NE 185th Street and 104th Avenue NE
- UW Bothell/Cascadia College-Beardslee Boulevard
- Beardslee Boulevard and NE 195th Street
- SR 522/I-405 Transit Hub
Three new Park-and-Ride garages will be located at:
- Lake Forest Park Town Center
- Kenmore Park-and-Ride
- Downtown Bothell, proposed on the vacant lot south of Pop Keeney Stadium
Other improvements include:
- New BAT lanes, bus queue by-pass lanes and transit priority lane configurations in Seattle/Shoreline, Lake Forest Park and Bothell
- New sidewalks, Americans with Disabilities Act (ADA) ramps and other intersection improvements in Seattle/Shoreline, Lake Forest Park, Kenmore and Bothell
Ongoing improvements related to but not a part of the Stride BRT project include:
- Transit-oriented development potentially near the future Park-and-Ride garages in Lake Forest Park, Kenmore and Bothell
- A new ST Express route in Woodinville to connect transit riders to high-capacity transit. The proposed ST Express stations may be located at:
- SR 522 and 131st Avenue NE
- NE 175th Street and 135th Avenue NE
- 140th Ave NE and NE 179th Street (at the Woodinville Park-and-Ride)
To learn more about the improvements coming to your neighborhood and hear directly from the project team, watch the recorded presentation that will be shown at the online public meetings (link to be posted soon).
If you'd like to see more detailed designs, view our 30% design roll plots of each city:
Seattle/Shoreline:
- NE 145th Street from 5th Avenue NE to 12th Avenue NE (143 MB PDF)
- NE 145th Street from 12th Avenue NE to 22nd Avenue NE (130 MB PDF)
- NE 145th Street from 22nd Avenue NE to 30th Avenue NE (148 MB PDF)
- NE 145th Street from 28th Avenue NE to SR 522 (97 MB PDF)
Lake Forest Park:
- SR 522 from NE 145th Street to NE 153rd Street (135 MB PDF)
- SR 522 from NE 153rd Street to 39th Avenue NE (147 MB PDF)
- SR 522 from 39th Avenue NE to 41st Avenue NE (146 MB PDF)
- SR 522 from 41st Avenue NE to Ballinger Way NE (139 MB PDF)
Kenmore:
- SR 522 from 60th Avenue NE to 62nd Avenue NE (54 MB PDF)
- SR 522 from 67th Avenue NE to 68 Avenue NE (57 MB PDF)
- SR 522 from 73rd Avenue NE to Kenmore Park-and-Ride (79 MB PDF)
Bothell:
- SR 522 from Yakima Fruit Market to 98th Avenue NE (148 MB PDF)
- 98th Avenue NE from SR 522 to NE 185th Street (94 MB PDF)
- NE 185th Street from 98th Avenue NE to 103rd Avenue NE (104 MB PDF)
- NE 185th Street from 103rd Avenue NE to Beardslee Boulevard (113 MB PDF)
- Beardslee Boulevard from NE 185th Street to 112th Avenue NE (148 MB PDF)
- Beardslee Boulevard from 112th Avenue NE to NE 195th Street (72 MB PDF)
Environmental review
What's next in the environmental review process?
We are continuing to conduct environmental review of the project. Sound Transit is the Lead Agency under the State Environmental Policy Act (SEPA) for this project and is completing a SEPA Checklist to document the findings of the environmental work.
Upcoming public review and comment period for SEPA Checklist
After evaluating the project and completing the SEPA Checklist, Sound Transit will publish a Threshold Determination documenting whether the project is expected to have any significant adverse impacts and if mitigation for these impacts is available. Both the SEPA Checklist and Threshold Determination will be published for public review and comment.
The project team will publish the documents for public review and comment later this spring. Please look out for more information about the SEPA schedule and comment period through our project email updates.
What is SEPA (State Environmental Policy Act) and what is a SEPA Checklist?
Analysis of environmental impacts through a SEPA process is intended to ensure that environmental values are considered during decision-making by state and local agencies. A SEPA Checklist is used to identify, analyze, and disclose environmental impacts associated with proposals, as well as to inform government and agency decisions about those proposals. Impacts associated with both construction and operation of the project are considered in the Checklist.
Sound Transit is evaluating 16 elements of the environment as required through a SEPA Checklist process. The checklist addresses:
Earth, air, water, plants, animals, energy and natural resources, environmental health (hazardous materials and noise), land and shoreline use, housing, aesthetics, light and glare, recreation, historic and cultural preservation, transportation, public services and utilities.
If you are interested in more details on how the SEPA process works and what a SEPA Checklist contains, check out the Washington Department of Ecology’s website and Sound Transit’s SEPA Rules.
What happens after public review of the SEPA Checklist and Threshold Determination?
Sound Transit will consider any comments received on the SEPA threshold determination prior to asking the Sound Transit Board to identify the project to be built. The Board will consider the outcome of the environmental review process, along with other technical and economic information, when making a decision about advancing the project into final design and construction.

What’s next
How will the project move forward?
After completing the SEPA checklist and comment period later this spring, the project team will ask the Sound Transit Board to identify the project to be built, which may enable the project to advance into the design and construction phases. The project schedule is subject to change due to impacts from the COVID-19 recession and the ongoing Sound Transit Board realignment process.
In the upcoming design phase, the project team will:
- Finalize the design of roadway and sidewalks.
- Finalize station design and public art.
- Advance the Park-and-Ride garages to 30% design.
- Obtain land use, environmental and construction permits.
- Begin the property acquisition process.
- Continue engaging with and providing feedback opportunities for the public, community groups, businesses, elected officials and partner agencies to comment on and inform the design.
Subscribe to our email list to stay tuned for future updates.
Beginning in fall 2021, the existing Sound Transit (ST) Express Route 522 will be re-routed to the future Roosevelt Link light rail station. From there, riders will be able to take Link light rail south to downtown Seattle and the Seattle-Tacoma International Airport, or north to Northgate. In 2025/2026, SR 522/NE 145th BRT will connect to the future Shoreline South/148th Link light rail station.
Our goal is to ensure that the future BRT system complements and supports the most efficient local and regional transit service for the community, including avoiding duplicative service, reducing travel times and providing easy transfers. As an agency, Sound Transit's service model is to reorient bus service to connect to the expanding Link light rail network. By re-routing the existing ST Express Route 522 and connecting BRT to Link light rail in Shoreline, transit service along the SR 522 and NE 145th corridor will be able to bypass existing congestion and be consistently faster and more reliable. We will continue to work closely with our transit agency partners, King County Metro and Community Transit, to determine how our services can best integrate with their current and planned future routes.
2021 – King County Metro’s North Link Connections Mobility Project
- With the opening of Northgate Link light rail in 2021, King County Metro will make changes to bus routes and introduce new mobility options in north King County, including along SR 522 and NE 145th Street.
- In October 2020, King County Council members hosted a virtual town hall to inform community members and provide an opportunity to give feedback. Read about the details to their plan and learn more about future opportunities to engage and provide feedback.
- Since January 2020, we have been meeting with residential and business property owners located directly adjacent to the project corridor who may be affected by the project.
- Our goal is to connect with you to inform you about the project and potential impacts and to learn more about your needs and circumstances. We want to be as transparent as possible about the project development process so that you understand what’s next for the project and can make informed decisions as it relates to your property.
- If you are a property owner who has received a letter from Sound Transit and you haven’t yet met with project staff about your property, please contact us at brt@soundtransit.org to schedule a phone or video meeting.
- Please also visit our online resource page for property owners to meet the project team members through our video series, find answers to frequently-asked questions and view other project resources.
- City of Shoreline is working on the NE 145th Street and I-5 Interchange Project to construct two roundabouts: one at the intersection of the southbound I-5 on- and off-ramp, and one at the intersection of NE 145th Street and 5th Avenue NE.
- The City and Sound Transit have signed a letter of concurrence on the Stride BRT improvements along NE 145th Street, which includes joint funding of the roundabouts.
- View the design concept and learn more on the City’s project website.
Pre-COVID-19 Schedule-Subject to Realignment

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2016: Voter Approval 2018-2021: Planning phase – We are here now. Includes project refinement in 2018-2019, with the Sound Transit Board advancing the refined project in spring 2019. It also includes conceptual engineering and environmental review in 2019-2021, with the Board selecting the project to be built in spring 2021, followed by preliminary engineering.2020-2023: Design phase – Includes final route design, final station designs and public art, obtaining land use and construction permits, and the property acquisition process.Begins 2023: Construction phase – Includes groundbreaking, construction updates and mitigation, and construction of roadway improvements, parking and stations.Public involvement spans all phases of the schedule. Start of service is anticipated in 2024/2025. The schedule is subject to change due to recession caused by COVID-19 and the ongoing Sound Transit Board realignment process.
Share your thoughts!
Take our quick survey to let us know how we can improve our engagement with you.
Improving our engagement
As we move forward with design and construction, we’re committed to keeping you informed and engaged. Let us know below how we can better reach out to you.
Project overview and contact us
Are you new to BRT?
Visit our project website to learn more about how this project started. You can also watch our short video for an introduction to BRT and the Stride S3 Line, and read our Summer 2020 outreach summary to learn more about last year's community engagement. Please note that the anticipated date for when BRT service will begin is subject to change due to impacts from the recession caused by COVID-19 and the ongoing Sound Transit Board realignment process.
You will continue to hear from us in the coming months through our project email updates. Please sign up for our email list to stay up-to-date on the project.
How to get involved

Text below describes the graphic above
This graphic shows many ways to get involved or stay engaged with the project:
Looking for the best way to contact us? Email your questions, concerns or comments to brt@soundtransit.org
Contact us:
Call the project line at 206-553-3412 to speak with an Outreach Specialist.
Email with questions, concerns or comments at brt@soundtransit.org
Go online:
Respond to online surveys.
Learn about the project at https://www.soundtransit.org/system-expansion/sr-522-ne-145th-brt.
Subscribe to email updates.
Follow on social media. Follow us at @SoundTransit on Facebook, Twitter, YouTube, Instagram and LinkedIn.
Get involved:
Virtual public meetings: Join us at online at one of our virtual public meetings to provide your feedback and comment on current plans.
Property owner and tenant outreach:
Sound Transit will proactively reach out to affected property owners and tenants to consult about the project’s impacts. Property owners and tenants can provide their feedback and comment on current plans.
Briefings:
Request a briefing with us; we are happy to have a virtual meeting with you or your community group.
Contact us
Sound Transit Community Outreach
Phone: 206-553-3412
Email: brt@soundtransit.org
Web: soundtransit.org/SR522BRT
Our project staff continue to coordinate with King County Metro, Community Transit and WSDOT staff on their projects in the area. If you have comments about their services, please contact them through the below links: