156th St SE Corridor Improvements

February 2017 Update

Open House: 156th Street SE, Seattle Hill Road, and 35th Avenue SE
Public Works is hosting an open house to discuss these three projects in the unincorporated Mill Creek/Bothell area. 
  • When: Thursday, February 23, 2017 – stop by anytime between 5:30 and 7:30 p.m.
  • Where: Mill Creek Elementary School in the Cafeteria
  • What: Residents of the area, commuters, and families of nearby schools are invited to discuss the three projects. Staff will be available to answer questions about the Seattle Hill Road construction, review the proposed road improvements to the section of 35th Avenue SE, and gather feedback on potential designs for the 156th Street SE project.
Questions or comments about the open house should be directed to Catherine Higgins via email or by calling 425-388-3053.


The 156th Street SE Corridor project aims to improve the roadway and provide continuous pedestrian facilities along 156th Street SE from 35th Avenue SE to west of Forest View Elementary School and Gateway Middle School.

Some improvements being considered include:
  • Improving vertical curves along the roadway
  • Providing intersection improvements at 156th Street SE and Sunset Road
  • Adding pedestrian facilities connecting already existing sidewalk strips west of Sunset Road
  • Constructing pedestrian facilities along 156th Street SE between Sunset Road to Forest View Elementary School and Gateway Middle School


  • End of 2015 to early-2016: Surveyors will identify public right-of-way boundary and survey the existing topography and critical areas 
  • 2016: Begin work on a preliminary design report, right-of-way plan, community outreach, and environmental review

Environmental Review

The county will complete an environmental review of the proposed project in 2016.


County Road funds are available during the design and right-of-way phases.