Highland Park Traffic Safety Improvements

Updated: March 31, 2020

What’s happening now?

To help manage traffic during the emergency closure of the West Seattle Bridge, a temporary signal was installed at Highland Park Way SW and SW Holden Street. SDOT anticipates increased traffic at the intersection during the West Seattle Bridge closure because it is heavily used to access Hwy 99.

The temporary signal was installed on Sunday, March 29, 2020. SDOT crews will also install pedestrian improvements, including painted curbs with white posts, which should be installed by Monday, April 6. The temporary signal, painted curbs, and white posts are showin in the design below and will remain in place until the West Seattle Bridge opens.

The graphic below shows the design for these temporary improvements due to the West Seattle Bridge closure. SDOT will continue planning for the permanent safety improvements project. Community input will take place while the temporary signal remains in place.   Highland-Holden intersection improvements

Project Overview

Highland Park Way SW is a major north-south route in West Seattle, providing access to SR 99, SR 509, I-5, and the Duwamish Trail. The intersection at SW Holden St serves more than 22,000 drivers, transit riders, pedestrians and bicyclists daily. 

Why Improvements are Needed

The Highland Park Way SW and SW Holden St intersection has been the site of several accidents and safety issues due to poor sight distances, high speeds, travel lane confusion, and a lack of pedestrian facilities.

Improvements Being Considered

We are currently at the 10% design phase of this project. Proposed improvements include:

  • A fully signalized intersection at Highland Park Way SW and SW Holden St
  • Protected bike lane along Highland Park Way SW between W Marginal Way and SW Holden St
  • Several additional safety improvements throughout the neighborhood

Project area 10 percent plans including intersection improvements at Highland Park Way SW and SW Holden St and a protected bike lane between SW Holden and W Marginal Way

Materials

Funding

This project is funded by the 9-year Levy to Move Seattle, approved by voters in 2015.