Route 40 - Transit-Plus Multimodal Corridor

April 12, 2021

Making bus trips faster, more reliable, and improving safety

What's happening now?

From now until late 2021, we're continuing to review corridor needs, identify community priorities, and determine what improvements are most beneficial and feasible. After this process is completed, an identified set of designs will move forward to final design and construction. We anticipate reaching final design in mid-2023 and starting construction in late 2023.

We are at the end of the planning phase and are heading into early design phase of this project. We're in the process of narrowing down our concept plans and would like your feedback. Here's how you can learn more about the project and give your input:

Project Update Video
View our proposed changes along the Route 40 corridor in our 25 minutes prerecorded presentation. Click here to view the video.

Online Survey
Let us know your thoughts on the proposed changes through our survey, which will be open through April 16. Click here to take the survey.

¡Ayúdenos a mejorar la Route 40! Complete la encuesta antes del 23 de abril!  

ساعدنا على تحسين الطريق Route 40! شارك في الإجابة عن الأسئلة الواردة في هذا الاستطلاع في موعد أقصاه يوم 23 أبريل (نيسان)!  

Drop-In Sessions
Thank you for attending our April 7 and 8 virtual drop-in sessions! We'll be posting a summary of your questions and answers this webpage soon.

Project Overview

Partnering with King County Metro, we plan to make improvements to this vital corridor.

Improvements made as part of the Transit-Plus Multimodal Corridor may include:

  • Reduce peak transit travel times during peak hours by 5% to 10%
  • Improve service reliability by:
    • Making the time between buses more consistent
    • Helping ensure that no matter the time of day, trips take about the same amount of time

Route 40 corridor improvements were first identified as part of the Levy to Move Seattle and King County Metro's METRO CONNECTS program. Based on results of the 2018 Levy Workplan Report, Route 40 will not be transitioned to RapidRide during this project. However, improvements will be designed to align with potential future RapidRide expansion.

Route 40 Background

Before COVID, Route 40 was one of Metro's highest ridership routes. During COVID pandemic, it remains one of Metro's top highest ridership routes serving 3,800 weekday customers. Running north to south, Route 40 is 13.5 miles long and passes through the neighborhoods of Northgate, Crown Hill, Loyal Heights, Ballard, Fremont, South Lake Union, Downtown Seattle, and Pioneer Square.

Project Map

Map of project area of Route 40

See more on the RapidRide program update.

See more on the comprehensive assessment of the Levy to Move Seattle.

Other Projects Along This Route

SDOT and Metro are focusing many investments along the Route 40. Our project team is in close coordination with the following projects: 

Project Materials

Route 40 Evaluation Framework Memorandum (February 2020)

Project fact sheet (June 2020)

Project fact sheet (June 2020 - Arabic)

Project fact sheet (June 2020 - Spanish)

Seattle Bicycle Advisory Board presentation (August 2020)

Seattle Transit Advisory Board presentation (August 2020)

Seattle Pedestrian Advisory Board presentation (October 2020)

Seattle Freight Advisory Board presentation (October 2020)


This project is being funded by the 9-year Levy to Move Seattle, approved by voters in 2015 to improve safety for all travelers, maintain our streets and bridges, and invest in reliable, affordable travel options for a growing city.


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