Route 40 - Transit-Plus Multimodal Corridor

February 25, 2020

Making bus trips faster, more reliable, and improving safety

What's happening now?

Seattle Department of Transportation and King County Metro are partnering to explore concepts for speed and reliability improvements for King County Metro Route 40, which passes through the neighborhoods of Northgate, Crown Hill, Loyal Heights, Ballard, Fremont, South Lake Union, Downtown Seattle, and Pioneer Square. 

We're in the early planning phase, reviewing the corridor needs and identifying community priorities to determine what improvements are most beneficial and feasible. Those improvements will then move forward to final design and construction, with work scheduled to be complete in 2024.

Join us for the Route 40 Transit-Plus Multimodal Corridor project drop-in sessions to learn about the Transit-Plus program and what improvements we're considering for Route 40.

At drop-in sessions, you'll be able to:

  • Learn about how this project will reduce transit time during peak hours and improve service reliability
  • Review information at your own speed and get one-on-one engagement with project experts
  • Share feedback through our survey
  • Learn about the project schedule and what to expect during the planning and design phase

Event details:

Tuesday, March 17: 12 - 1:30 PM
Y at the Cascade People's Center
309 Pontius Ave N

Wednesday, March 18: 5 - 6:30 PM
Leif Erikson Hall
2245 NW 57th St

Thursday, March 19: 5 - 6:30 PM
Loyal Heights Community Center
2101 NW 77th St

Venues are ADA-accessible. Visit to plan your trip.

To request an interpreter or other accommodations to effectively participate in these drop-in sessions, please contact (206) 256-5458 at least 5 business days prior to the event.

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

With 3 million annual rides, King County Metro's Route 40 has the third-highest ridership of all their bus lines. 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 proposed 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

Project fact sheet (February 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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