Route 40 - Transit-Plus Multimodal Corridor

Construction Alerts

Construction continues on the Route 40 Transit Plus Multimodal Corridor project in North Aurora, Ballard, Westlake!

Crew members perform trenching work for new pipes and cables with the help of an excavator in the Ballard neighborhood

Crew members perform trenching work for new pipes and cables with the help of an excavator in the Ballard neighborhood.

What you can expect during construction:

  • Temporary lane reductions
  • Temporary driveway closures
  • Temporary bus stop closures
  • Temporary parking restrictions
  • Temporary sidewalk detours
  • Temporary storage of construction supplies in the street 
  • Bus stop relocations
  • Drainage work: This involves digging trenches to help manage water flow
  • Signal pole foundation excavation: This work involves digging for the pole foundations prior to when we order custom signal poles which takes a while to build and to make sure we know there are no underground obstructions 
  • Trenching for conduit: This involves digging trenches to lay down pipes or cables underground
  • Sidewalk curb bulb out: This involves making the curbs stick outward for safety or accessibility
  • Mill and fill overlay: This is when the top layer of the road gets removed and replaced with new asphalt

What’s happening in Ballard?

NW Market St between Ballard Ave NW and 22nd Ave NW

  • Crews have completed concrete and sidewalk work on the north side of NW Market St and sidewalk improvements on the east side of 22nd Ave NW and NW Market St.
  • Crews plan for sidewalk work followed by sidewalk/curb restoration on the west side of 22nd Ave NW.

Leary Ave NW

Between 20th Ave NW and NW Market St:

  • Construction for the new large concrete sidewalk extensions near Olympic Athletic Club continues through November. Pavement milling has been completed and crews plan for sidewalk and roadway paving in early December.
  • Vehicles can expect partial street closures on 20th Ave NW, between Leary Ave NW and Ballard Ave NW for the remainder of the month.
  • Median islands will also be added at the midblock crosswalk of 20th Ave NW and Leary Ave NW and at 20th and Leary.
  • Please use caution and pay attention to your surroundings if you're walking or driving through this intersection.  

Between NW Dock Pl and NW Ione Pl:

  • Crews are expected to wrap up sidewalk work by early to mid-December on Leary Ave NW between NW Dock Pl and NW Ione Pl. Community members can expect larger bus bulbs in both directions of Leary Ave NW. Median islands are also being installed at both bus bulb locations. Crews have installed new bus stop foundations on Leary Ave NW. Pedestrians will be directed to use detours down to Ballard Ave NW. 

Neighbors should expect to see temporary lane reductions, parking restrictions, sidewalk detours, and temporary driveway impacts in select areas of Leary Ave NW throughout the Fall. Construction is typically weekdays and select weekends from 7 AM - 4 PM. 

What's happening in Fremont?

Major construction in Fremont is scheduled to begin in February 2025. We will be upgrading select sidewalks, storm water drainage improvements, and paving select areas for smoother travel. We'll also be working with Seattle Public Utilities to replace a 100-year-old watermain under Fremont Ave N between N 34th St and N 35th St. Construction in Fremont will be througout 2025. 

To learn more about the project, please read the types of construction activities we will be doing and the construction area

What to expect during construction:

▶ Lane reductions and detours
▶ Driveway closures
▶ Bus stop closures
▶ Parking restrictions
▶ Sidewalk detours
▶ Storage of construction supplies in the street
▶ Noise, dust, and vibrations
▶ Bus detours and stop relocations

Project Area in Fremont

What's happening in Westlake?

Westlake Ave N

  • Crews will begin prepping for construction on Westlake Ave N near Halladay St. Community members can expect to see construction crews starting as soon as mid-December. Crews plan to survey, trench, and install conduit for the new pedestrian crossing. Due to inclement weather, this work was postponed.  
  • Construction impacts neighbors can expect to see are parking restrictions, lane reductions, detours, noise, dust, and debris.
  • Halladay St will be closed during construction hours.
  • Construction is typically weekdays and select weekends from 7 AM - 4 PM.

Construction along Westlake Ave N is expected to last through 2025.

To learn more about what to expect, please read the types of construction activities we will be doing and the construction locations

What’s happening on Holman Road NW and in North Aurora?

Holman Rd NW (between 3rd Avenue NW and NW 103rd St)

  • Work on Holman Rd NW has not started yet. We will continue to share updates when we expect to begin. Once construction starts, the contractor will need to have temporary lane restrictions. Travelers can expect delays. Pedestrians will be detoured to the northwest side of Holman Road NW.

North Aurora

  • We are hoping to wrap up work on the bus zone improvements on Aurora Ave N and N 105th St/N Northgate Way by this Fall.

About the Project

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.

Before COVID, Route 40 was one of Metro's highest ridership routes, serving over 13,000 weekday riders — the third highest ridership route in the system behind the D and E Lines. During COVID pandemic, it remains one of Metro's top highest ridership routes, serving an average of over 7,000 customers each weekday.

Route 40 buses are scheduled to arrive every 5 to 10 minutes during peak periods and stops are located approximately every quarter mile throughout the route. However, buses on this route are often slow and unreliable, impacting thousands of people who rely on transit. This project will identify and implement improvements that provide faster and more reliable transit service for Route 40 and other bus routes that share the corridor.

Key Transit Connections

Route 40 connects with some of the highest ridership routes in our system, such as the RapidRide C, D, and E Lines, as well as Route 44. Additionally, Route 40 ends at the Northgate Transit Center, where many regional transit routes come together. Route 40 connects to the Northgate Link light rail station, completed in October 2021, and will connect to the Ballard station to be completed in 2037-39.

Project Map

Map of Route 40, starting in Northgate, going through Ballard, Fremont, Westlake, and Downtown

Route 40 improvements include: 

  • 3 miles of Businesses Access and Transit only lanes or Freight and Bus only lanes
  • 47 upgraded curb ramps
  • 8 new bus bulbs
  • 6,000+ feet of upgraded sidewalks
  • 3 new or upgraded crosswalks 

Neighborhoods - Frequently Asked Questions

Why is a bike lane being added on Fremont Ave N if this is a bus project?

During our comprehensive review at the beginning of this project, Fremont Ave N between N 34th St and N 35th St was identified as a priority street in all our modal plans (i.e., Frequent Transit Network, the Bicycle Master Plan, the Freight Master Plan, and its designation as a Pedestrian Zone).

Given our unique opportunity with this project to completely rebuild the right-of-way on this block, and our commitment to fulfilling our modal plan goals, we are including a new northbound bike lane on this block in our design plans. This block has been a gap in the bike network and adding the bike lane will enhance the safety and efficiency for those who bike across the Fremont bridge and up the Fremont hill.

What are bus bulbs and why are they being added?

  • Bus bulbs are curb extensions that widen the sidewalk to meet the traffic lane, allowing buses to stop and board passengers without ever leaving the travel lane.
  • Bus bulbs help buses move faster and more reliably by decreasing the amount of time lost due to
    merging in and out of traffic.
  • Bus bulbs also provide ample space for passengers to wait without obstructing the sidewalk.

Why is the bus stop on Fremont Ave N being split into two stops?

There are two primary reasons why the existing bus stop will need to be split into two stops:

  1. Improving travel times and reliability for all routes that serve the existing stop
  2. Increasing safety and predictability for all travel modes, whether you are biking, taking the bus, driving, walking, or rolling

The bus stop on the east side of Fremont Ave N between N 34th St and N 35th St serves Routes 31, 32, 40, and 62. It is heavily used by all types of riders, including commuters, students, or people wanting to visit and shop in the Fremont neighborhood. Near this bus stop, you can find:

  • An average of 5,250 transit riders across all routes on an average weekday
  • An average of 9,630 total vehicles driving by this stop each day
  • An average of 360 bikes traveling northbound on this block each day

All of this traffic makes this one block highly congested, particularly in the afternoon peak period and after bridge openings.

The high volumes of traffic and high frequency of buses pose challenges for all users, whether you are walking, biking, taking transit, or driving a car. Our data shows that the various routes can arrive at the singular stop at the same time, causing the buses to “bunch” at this stop. Bunching causes all traffic to be delayed. With the existing stop, buses also need to weave in and out of the curbside lane to rejoin traffic. These movements slow down traffic for all users on this block.

Splitting this bus stop into two separate stops will reduce congestion on this block and reduce travel times for all modes of travel.
Additionally, we want to increase safety and limit the number of conflicts between people biking and other modes of transportation. With the proposed northbound protected bike lane on this block, we have explored several options for designing a street where the existing bus stop could be maintained.

However, a shared bus stop and bike lane design on this block would not work due to limited street
width, increased travel delays, and a higher level of conflict among all who travel on Fremont Ave N.

What are the improvements coming to Ballard?

The improvements in Ballard include calming speeds on Leary Ave NW by reducing the number of travel lanes, adding a new traffic signal at 20th Ave NW and Leary Ave NW, an upgraded pedestrian crossing on Leary Ave NW north of 20th Ave NW, and northbound BAT lanes. You can view our Ballard design plans here.

Why are you going from two lanes in each direction to one on Leary Ave NW and what vehicle traffic impacts do you anticipate? 

Going from two lanes in each direction to one along Leary Ave NW and installing a two-way left-turn lane in the center encourages people to drive at the posted speed limit, reduces weaving, and limits delays resulting from crashes. Similar changes that were made on W Nickerson St, which is a similar street that has higher volumes (19,000 to 23,000 average weekday daily traffic compared to 10,000 to 13,000 on Leary Ave NW). The vehicle traffic impacts were minimal and the changes were successful without increasing congestion on W Nickerson St or neighboring streets.

What traffic studies have been done for this neighborhood?

Our traffic analysis shows that constructing the Route 40 project results in a 14-17% bus travel time savings in Ballard, contributing to a 5-10% overall transit travel time reduction for the entire route. The biggest time savings come from the bus-only lanes throughout the project corridor.

We compared the Level-of-Service for Build and No Build options and learned that most intersections perform similarly. The tables below show anticipated LOS at the studied signalized intersections, all way stop control (AWSC) intersections, and two-way stop control (TWSC) intersections.

One exception is the AM peak hour at the two-way stop at Leary Ave NW and NW Dock Pl. It operates at a lower level of service (LOS E) in the Build Option compared to LOS C in the No Build Option. This is because changing the number of lanes on Leary Ave NW to one through-lane in each direction makes it harder for people stopped at NW Dock Pl to find a gap to proceed onto Leary Ave NW. The travel times for vehicles on Leary Ave NW would be similar to current conditions. The other exception for LOS change is at Leary Ave NW and 20th Ave NW, which improves in the PM peak hour due to a new traffic signal being installed at this intersection.

How many parking spaces will be removed?

We recognize that the removal of on-street parking can be impactful. We aim to only remove curb access and parking spaces when necessary.

When we make curb changes, we consider a wide variety of factors, including addressing needs for goods and services delivery, encouraging vehicle turnover, the availability of curb access elsewhere, and how enhancements to the multimodal transportation system can encourage less driving. While some paid parking on NW Market St will be removed, we will maintain commercial and passenger loading zones for buildings on this block. Additionally, we have plans to install a new loading zone near the NW Market St and 24th Ave NW intersection, north side, to provide more curbside space for other businesses in the area.  We will also continue to work with businesses to address loading and unloading zones.

SDOT Curbside team is examining as part of the Route 40 project to add paid parking on currently time-limit blocks on parts of NW 20th and parts of Leary way. As an example near the game store, 4-hour paid parking as is out there already would provide time for customers and help with vehicle turnover on the main streets.

Will new loading and unloading spaces be added?

We know that load zones are vital for businesses. We have plans to install a new load zone near the NW Market St and 24th Ave NW intersection, north side, to provide more curbside space for other businesses in the area.  We will also continue to work with businesses to address loading needs, and if businesses have a request, please let the project team know or email DOT_ROAD@Seattle.gov.

How much travel time is this going to save transit riders in Ballard?

Our traffic analysis shows that constructing the Route 40 project results in a 14-17% bus travel time savings in Ballard, contributing to a 5-10% overall transit travel time reduction for the entire route. The biggest time savings come from the bus-only lanes throughout the project corridor. 

What are the improvements coming to North Seattle?

A new northbound business access and transit (BAT) lane will be added to Holman Rd NW.

The two-way center turn lane will be maintained to allow left-turns onto side streets. You can view our design plans here.

What is a business access and transit lane and why is it being added?

Business access and transit (BAT) lanes are proven tools that improve travel times and bus reliability for riders. BAT lanes restrict access to buses to increase reliability for riders. These BAT lanes allow people driving and other vehicles to enter the lane to make right turns at intersections or to turn into driveways.

The upgrades to Holman Rd NW increase transit travel times and reliability for Route 40 by giving it a dedicated lane. Mid-block left turns will be maintained in the two-way center turn lane to maintain access to and from side streets and Holman Rd NW.

What traffic studies have been done for this neighborhood?

You can read through SDOT’s full traffic analysis as well as the summary submitted for the State Environmental Policy Act to learn more about the data the supports the need for improvements along Holman Rd NW.

Can you add a crosswalk here? How are the decisions made to install crosswalks?

We understand the importance of pedestrian safety and welcome feedback from community members who would like a crosswalk to be marked in their neighborhood. When considering locations for new crosswalks, signals, and intersection upgrades, we first conduct an engineering study to determine whether a marked crosswalk is the best improvement for that location using a set of criteria, such as the number of lanes to cross, traffic volumes, and expected usage.

 

Project Schedule

Schedule graphic at During Construction

  1. Planning (2019-2021): We collected traffic data, reviewed plans, and gathered community experiences to define options.
  2. Design (2021-2023): We are collaborating with the community, working to secure regulatory approval (e.g., Environmental Assessment), and developing a more detailed final design.
  3. Construction (2024-2026): We will construct the project and keep the community informed on the latest construction updates, schedule, and expected impacts.

Funding

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. Additional sources include federal grants, state grants, King County Metro funds, and Vehicle Licensing Fees from the Seattle Transit Benefit District.

Community Outreach

40+ Briefings

with community groups, property and business owners, and advisory boards

20+ Email Updates

to community members

2 Online Open Houses

for community members

7 Door-to-door Outreach

activities with business owners and neighbors

7 Tabling Events

along the project corridor

6 Surveys

with riders and community members

A tabling event with community members learning about the Route 40 project

Tabling outreach event June 2023 in Fremont. (Picture credit SDOT)

Since 2020, we’ve been working with project partners, community members, and neighborhood organizations to gather feedback to help shape the design of the street improvements for the Route 40 project. At key design milestones, we’ve conducted surveys, hosted briefings, and been in the community to gather feedback. Feedback from the survey respondents can be found here: 

To see the full list of outreach activities completed during the planning and design phases, please view the Route 40 Transit-Plus Multimodal Corridor Outreach Activities Report

Additional Resources

Construction Information

Fact Sheets

FAQs

Traffic Analysis

Design Documents

Outreach Events and Summaries

Stakeholder Presentations

SDOT has determined that the Route 40 Transit-Plus Multimodal Corridor Project will not have a probable significant adverse impact on the environment. As a result, SDOT issued a Determination of Non-significance (DNS) on May 22, 2023. This decision was made after review of the adopted National Environmental Policy Act Documented Categorical Exclusion (DCE) Worksheet and technical reports.

Please see the DNS below for more information. 

SEPA Documents

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Transportation

Greg Spotts, 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.