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129th Avenue Road & Safety Improvements Completed

Project complete

In May, the roadway along SE 129th Avenue between SE Mountain Gate Road to SE Scott Creek Lane received the green light to fully reopen as the final tasks of a major road project were completed. This stretch now includes a variety of new features including:

  • Shared use path on the east side of the roadway for bike and pedestrians
  • New southbound bike lane
  • Retaining walls and fencing
  • New asphalt pavement overlay
  • Undergrounding of overhead utility lines
  • Installation of additional streetlights along the roadway
  • Stormwater system improvements including water quality treatment of surface runoff with green street planters
  • ADA designed pedestrian crossing using a rectangular rapid flashing beacon (RFFB) at Scott Creek Lane
  • Bike lane and crosswalk striping and symbolization

One of the few major thoroughfares leading into an established area of the City, this project increases travel safety for all modes of transport. Funding for this project was derived from a grant issued by Metro with any additional financing needs provided by City funds.


The project will involved street widening and re-striping to allow for the creation of bike lanes on both sides of 129th Avenue. A retaining wall of varying height up to 10 feet was constructed behind the proposed sidewalk as an added safety measure.  Additionally, a pedestrian crossing signal was installed at the intersection of 129th Avenue and Scott Creek Lane.

More specifically, this project will consist of the following improvements:

  • Shared use path on the east side of the roadway for bike and pedestrians
  • New southbound bike lane
  • Retaining walls and fencing
  • New asphalt pavement overlay
  • Undergrounding of overhead utility lines
  • Installation of additional streetlights along the roadway
  • Stormwater system improvements including water quality treatment of surface runoff with green street planters
  • Pedestrian crossing using a rectangular rapid flashing beacon (RFFB) at Scott Creek Lane
  • Bike lane and crosswalk striping and symbolization

Although there are a lot of us who don’t like to see trees cut down, it is important to note that the City has a robust tree replacement requirement and tree permits are required for any type of tree removal. As a recognized Tree City USA, Happy Valley is truly committed to ensuring the City’s tree canopy remains healthy and strong. To this end, the City has worked closely with the City Arborist to ensure these removal efforts were carried out carefully and complied with the federal regulations of the Migratory Bird Treaty Act (MBTA), which requires any removal be completed prior to Mar. 1.

Roadway improvements on 129th Avenue are being funded by a grant issued by Metro. Securing these funds was a united effort made possible by not only the City, but by residents from the area, teachers, and business owners, who advocated strongly for these increased safety measures.

Question or Concerns About the Project?

Contact Sally Curran, PE
City Engineer at (503) 783-3814