1st Ave and Broad St Complete Street Extension Project

December 13, 2021

What's happening now?

We started project construction in early October! We removed the curb bulb at the west corner of 2nd Ave and Broad St and reconstructed the ADA-compliant curb ramps in preparation for the new protected bike lanes. We also upgraded the signal at 2nd Ave and Broad St, installed a new signal pole at 1st Ave and Broad St, and built two new curb ramps at 1st Ave and Denny Way as a part of this civil work. The protected bike lanes will connect the existing protected bike lane along 2nd Ave to the recently completed protected bike lane along 1st Ave N, north of Denny Way.  See map below. 

Next, we will begin roadway construction as soon as spring 2022* which will include removing existing lane markings on 1st Ave between Denny Way and just south of Broad St and on Broad St between 1st Ave and just north of Denny Way. Construction crews will also upgrade signal infrastructure and install a protected bike lane. They'll make changes to the curb space (see load zone map below) and install signage. The roadway construction delay is due to crew availability, material availability, and weather. SDOT remains committed to completing this protected bike lane.  

Advanced notice will be provided to notify people parking in the area that no parking will be allowed along the work zone during construction. 

We appreciate the patience of those living and traveling to the neighborhood during this construction period. For those traveling to the new Climate Pledge Arena, please refer to our blog post to learn about different travel options in the area. 

We are in close coordination with King County Metro on trolley line relocation and a service shift that will reroute a majority of bus service off of Broad St and 1st Ave within the project location.

*Please note this work is weather dependent and may be subject to change.

1st and Broad map showing bike lane and street channelization

Click map for pdf version

Project Description

The 1st Ave and Broad St Complete Street Extension Project will build bicycle and pedestrian improvements connecting Belltown to the Climate Pledge Arena and to the Uptown neighborhood, helping to fulfill the City's Bicycle Master Plan vision to make riding a bike an integral part of daily life in Seattle.

In coordination with the opening of the Climate Pledge Arena in 2021, this project will construct two-way protected bike lanes along Broad St between 2nd Ave and 1st Ave, and along 1st Ave between Broad St and Denny Way. This project will connect the new Climate Pledge Arena with the existing protected bike lane along 2nd Ave, which will continue to provide additional access to the Seattle Center campus at 2nd Avenue and Denny Way. This project will also connect to the 1st Ave N and Queen Anne Ave N protected bike lanes, partially completing the bike network between Belltown and Uptown neighborhoods.

This project is identified and funded by the North Downtown Mobility Action Program (NODO MAP).

Project Background

The North Downtown Mobility Action Program (NODO MAP) was developed in late 2019 to support access and livability in North Downtown, which includes the Uptown, Belltown, and South Lake Union neighborhoods. The program builds on existing community planning efforts, reviews existing community plans and planned projects, and is closely linked to the redevelopment of the Climate Pledge Arena.

What are protected bike lanes?

A protected bike lane is an exclusive bike facility that combines the user experience of a separated path with the on-street infrastructure of a conventional bike lane. A protected bike lane is physically separated from motor traffic and distinct from the sidewalks.

These lanes have different forms but all share common elements - they provide space that is intended to be exclusively or primarily used for bicycles, and are separated from motor vehicle travel lanes, parking lanes, and sidewalks. Learn more at our protected bike lane page.

Project Map

1st and Broad project map

Project Outreach

Thank you to those who participated in our online survey in October 2020. We worked to incorporate your feedback into our load zone relocation discussions. We've compiled all of the survey responses and want to share some of the findings from the survey results.

What we heard

  • Most respondents said that their most common uses of the curb space are passenger load/unload (3 minutes) and for 2hr parking.
  • Respondents said that evening/late night was the time of day where they most frequently use curb space within the project area.
  • Respondents indicated that they use the curb space more often on weekends (Friday - Sunday).
  • Concord Condominiums residents identified a desire to retain the 3-minute passenger load zone at the entrance to their building on 1st Ave.
  • 96% of respondents who responded to the question "How do you currently get around your neighborhood" said they walk (or use a mobility device) around their neighborhood.

1st and Broad load zone map

Click map for pdf version


This project is identified and funded by the North Downtown Mobility Action Program (NODO MAP).


Project schedule

*Draft schedule of the project is preliminary. Intent of project completion is to be aligned with anticipated opening of the new Climate Pledge Arena.