Ash Way Improvements (18th Ave W to the Admiralty Way/Gibson Rd Intersection)


Snohomish County is proposing improvements for the Ash Way corridor between the 18th Ave W roundabout and the Admiralty Way-Gibson Road intersection. The corridor is an important north-south route to and from Interstate 5, 164th Street SW, and the park-and-ride lot near 164th Street SW.

Some of the design improvements include:

  • Widening Ash Way from two to three lanes
  • Improving access to transit
  • Adding sidewalks, walkways and/or bicycle lanes for non-motorized transportation alternatives
  • Improving intersections throughout the corridor including the installation of roundabouts or signals
  • Adding a stormwater treatment facilities
  • Project Exhibit


  • 2019-2025: Design, survey, environmental review, permitting process, and right-of-way acquisitions. 
  • July 2023: Right-of-Way plan approved by county council
  • 2026-2028: Construction, subject to funding availability, permit approval, and right-of-way acquisitions.

Environmental Review

The county will complete an environmental review of the proposed project area in compliance with the State Environmental Policy Act (SEPA).


Public Meeting - October 12, 2022

Snohomish County Public Works held a five project Lynnwood area open house on Oct. 12, 2022. This project was among those featured. Below are documents available at the meeting:

Public Meeting - June 17, 2015

An Open House was held on Wednesday, June 17 at Odyssey Elementary School from 6 p.m. to 8 p.m.