what we do


Providing safe, convenient routes for pedestrians and bicyclists

Non-motorized facilities weave our communities together, improve livability, and promote healthy lifestyles. Parametrix designs safe spaces dedicated to people and seamless connections to places where people live, work, and play.


  • Lake to Sound Trail

    Lake to Sound Trail

  • Oregon Coast Trail Action Plan

    Oregon Coast Trail Action Plan

  • Alameda Drain Trail

    Alameda Drain Trail

  • Dona Larsen Park Multi-Use Pathway

    Dona Larsen Park Multi-Use Pathway

  • Mica Peak Trail

    Mica Peak Trail

  • East Lake Sammamish Trail | Parametrix

    East Lake Sammamish Trail


“I wanted to thank you and the Parametrix team for the outstanding support you have provided the County on the East Lake Sammamish Trial Project. Parametrix’s complete understanding of the controversies surrounding the East Lake Sammamish Trail Project, the complexities in dealing with multiple jurisdictions, and the difficulties with regard to constraints surrounding the County’s budget has been critical in Parametrix and the County’s ability to identify and quantify risks associated with the project’s cost and schedule.”

Gina Auld, King County