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SR 510/Yelm Loop – New alignment phase 2 online open house – Project overview

Current Situation

State Route 510 is a two-lane highway through Yelm. This highway is congested during peak hours. Congestion is especially heavy during the busy summer travel season or when drivers divert around crashes or other incidents on I-5. Traffic congestion can slow down emergency response times and effect the economic vitality of the City of Yelm.

Phase 2 project map

This is a map of the project area (showing the extension of SR 510 between Cullens Road Southeast and SR 507).

 What is WSDOT doing?

This project will extend SR 510 three miles between Cullens Road and SR 507. This future section of SR 510 will be a two-lane highway with a shared-use path for bicycles and pedestrians.

This cross section illustrates how the new roadway will look to drivers, bicyclists and pedestrians. The shared pedestrian/bicyclist path will be built south or west of the new roadway or closer to downtown Yelm.

Yelm Loop cross section

Project benefits

The project benefits include:

  • Improving travel times for regional traffic and decreasing the volume of regional traffic in downtown Yelm.
  • Reducing the number of travelers currently using city streets to bypass congestion on Yelm Avenue.
  • Lessening the potential for collisions on Yelm Avenue.
  • Providing a new shared-use path for cyclists and pedestrians built adjacent to the new roadway.

Project history

  • 1991-1992 – City of Yelm adopts Transportation Plan with proposed new roadways
  • December 1997 – Thurston Regional Planning Council (TRPC) approved moving forward with projects on two alignments
  • 2000 – Environmental Assessment approved
  • 2006 – Limited Access Plan public hearing
  • 2007 – 2010 – Right of Way purchased
  • 2010 – Phase 1 construction completed
  • 2015 – Connecting WA funding for Phase 2 secured
  • 2017 – Decision to advance Phase 2 work
  • Spring 2018 – Re-started work on project
  • 2018– Validated project Need, Purpose and Design
  • 2019-2021 – Complete Phase 2 Right of Way purchase, complete supplemental environmental assessment, prepare final design and construction plans
  • 2020 – 2021- Permitting
  • March 2021 – Anticipated project advertisement for competitive bidding
  • Summer 2021 – Start Phase 2 construction
  • Fall/Winter 2023 – Anticipated project completion