what we do

Alternative Delivery

Delivering quality projects collaboratively

Changes in customer expectations and limitations of available owner resources are creating demand for better, faster, and cheaper ways to deliver projects including design-build, general contractor/construction manager (GC/CM), and public-private partnerships. Each of these alternatives is based on an integrated team philosophy. Parametrix is ideally suited for these efforts, given our collaborative nature and reputation of teamwork. Our staff are involved in professional organizations developing improved methods of project delivery and have served on the State of Washington’s Capital Project Advisory Review Board’s Project Review Committee and the task force that developed heavy civil GC/CM legislation. We help clients analyze various delivery methods, determine the most appropriate fit for each project, and manage the procurement and delivery process.

SR 520 Bridge Replacement and HOV Corridor Program | Parametrix
SR 520 Bridge Replacement and HOV Corridor Program
Seattle to Redmond, Washington
Client: WSDOT
Partner: HDR Engineering

The 13-mile SR 520 Bridge Replacement and HOV Program encompassed four major projects—Eastside Transit and HOV, Floating Bridge and Landings, Pontoon Construction, and the Rest of the West—each constructed using design-build delivery. Parametrix was a member of the General Engineering Consultant (GEC) team that was responsible for project management, preliminary design, and construction management. Parametrix provided many project roles including management, engineering, landscape architecture and urban design, traffic engineering, transportation planning, environmental planning, design-build project procurement and oversight, administrative support positions, quality control reviews, and construction management.

  • Gold Award, Structural Systems, ACEC Washington, 2019
  • Project of the Year Award, Transportation, APWA, Washington, 2017
  • Grand Conceptor Award, ACEC, Washington, 2017
  • Gold Award, Structural Systems, ACEC Washington, 2017
  • 2040 Vision Award, Puget Sound Regional Council, 2016
  • Excellence in Design (Engineering), DBIA, 2016
  • National Award of Merit in Transportation,  DBIA, 2016
  • Quality of Life/Community Development Award,  WASHTO, 2016


  • Seattle Multimodal Terminal GC CM | Parametrix

    Seattle Multimodal Terminal GC/CM

  • Mount Vernon School District | Parametrix

    Mount Vernon School District GC/CM Advisor and PM/CM Services

  • Vancouver Public Schools GC CM | Parametrix

    Vancouver Public Schools GC/CM Advisor and Project Management

  • Eastside Community Center | Parametrix

    Eastside Community Center

  • SR 520 Bridge Replacement and HOV Corridor Program | Parametrix

    SR 520 Bridge Replacement and HOV Corridor Program

  • Wheeler Site Development