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Delridge-Highland Park Neighborhood Greenway

Creating a network of family-friendly residential streets

Last updated: July 29, 2015

Project Update

What's Happening?

The project team finalized the design for the Delridge-Highland Park Neighborhood Greenway. A contractor was recently selected to start building the greenway as soon as mid-August 2015 and be complete by early 2016.

Click to view the most recent project fact sheet.

Want to be added to the project email distribution list? Click here to sign up!
Questions? Contact the project team at or (206) 733-9960.

Seattle is building a network of neighborhood greenways. Neighborhood greenways are safer, calmer residential streets for you, your family, neighbors and customers. On streets with low car volumes and speeds, a greenway can:

  • Improve safety
  • Help people cross busy streets
  • Discourage cut-thru traffic
  • Protect the residential character of our neighborhoods
  • Keep vehicle speeds low
  • Get people to where they want to go (e.g., parks, schools, shops and restaurants)

Neighborhood greenways are not car-free zones; they do not add bike lanes; and there are minimal, if any, on-street parking impacts. Learn more about greenways here.


Project Description

The greenway will run north-south, connecting White Center to the West Seattle Bridge trail. The greenway route will run generally along 17th Avenue SW in the south and 21st Avenue SW in the north. For a full description of the improvements we designed for this greenway and the route, please see the attached map. Some of the changes will include:

  • Crossing improvements at arterial intersections including striped crosswalks, curb extensions and flashing beacons
  • Repaving SW Myrtle Street between 17th and 21st Avenue SW
  • Speed humps and all-way stops where need, generally about one per block
  • Way-finding signage and pavement markings throughout
  • Spot pavement repairs to improve roadway user safety

The greenway route was selected based on various factors, including evaluating streets for low car volumes, speeds and collisions, road grade (or steepness), and input we heard from the community.

SDOT is working with Seattle Public Utilities (SPU) to design curb extensions with natural drainage systems along 17th Avenue SW, between SW Henderson Street and SW Kenyon Street. To learn more about SPU's Delridge Natural Drainage Systems project, check out their Web page or contact Don Anderson, SPU Project Manager, at or call (206) 233-1086.

Public Outreach

In 2013, the City conducted a survey and held two public meetings to identify the most promising route and safety improvements for a neighborhood greenway in the Delridge/Highland Park community. We received valuable feedback on traffic safety concerns, destinations where people want to walk and bike to, as well as known drainage and sewer backup problems. After analyzing data and reviewing public input, the most-promising greenway route was determined to be 17th Avenue SW from Roxbury to SW Kenyon or Holden Streets and 21st Avenue SW on the north end.

Project outreach has included:

  • Neighborhood survey responses (we received more than 280)
  • July 9, 2013 public meeting (where more than 80 people participated)
  • November 19, 2013 public meeting
  • Door-to-door flyering to affected properties
  • Meetings with community groups

Staff also walked and biked around your neighborhood to review different routes and observe locations and grades. Other information considered included traffic volume, speed, and collision data.

Project Funding

Project design of the neighborhood greenway is locally funded by the nine-year voter-approved Bridging the Gap Levy. This project is part of a $3.8 million budget to design and construct the 2015 Ballard and Delridge-Highland Park Greenways.

The natural drainage portion of the project is being funded by SPU.

Project Schedule

The project reached final design this spring and we are in the process of securing a contractor to build the greenway. While the construction schedule is not yet finalized, we anticipate construction will begin as soon as early August and finish by early 2016. We will notify residents along the route in advance of construction.

Visit SPU’s Web page to learn more about SPU’s schedule to construct natural drainage infrastructure on 17th Avenue SW in Delridge.

Past Outreach and Materials

Project Contacts


Project Outreach Team

(206) 733-9960

CJ Holt
Project Manager
(206) 233-1556

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