what we do

Construction Management


Parametrix helps owners ensure the successful outcome of their projects. We proactively manage the details to achieve cost, schedule, and quality objectives on construction projects. Our experienced construction professionals provide effective leadership in the field to organize the team, implement project controls, develop communication protocols, and identify and manage conflicts. We work with the team to identify and mitigate project risks and liabilities.

SR 520 Floating Bridge and Landings Project | Parametrix
SR 520 Floating Bridge and Landings Project
Seattle to Redmond, WA
Client: WSDOT
Partner: HDR
  • The Floating Bridge and Landings project is one of several projects that make up the SR 520 Bridge Replacement and HOV Program which extends from I-5 in Seattle to SR 202 in Redmond, a distance of 13 miles. Parametrix, as a partner in the GEC team, provided complete construction management oversight for the project including anchor construction and placement; pontoon construction in Aberdeen; pontoon joining and assembly on Lake Washington; cofferdam inspection; bridge approach span piers; cast-in-place segmental bridge construction; roadway and building superstructures; and all electrical, mechanical, and marine operations. Parametrix staff designed, developed, and implemented a quality verification audit plan for the project and were involved in supporting and enforcing the environmental commitments developed for this very sensitive marine environment. The project also included CM for the new LEED certified maintenance facility for the bridge, including all mechanical, electrical, and structural work. Responsibilities also included coordination of RFI/RFC and submittal reviews, pay request reviews, contract and change order negotiations, and all construction compliance.

    • Project Achievement Award, CMAA Pacific Northwest Chapter


    • Sea-Tac International Airport On-Call | Parametrix

      Sea-Tac International Airport On-Call CM

    • Countyline Levee Setback | Parametrix

      Countyline Levee Setback

    • Convention Place Station | Parametrix

      Convention Place Station

    • Factoria Reycling and Transfer Station | Parametrix

      Factoria Reycling and Transfer Station

    • SR 520 Floating Bridge and Landings Project | Parametrix

      SR 520 Floating Bridge and Landings Project

    • University District Pedestrian Bridge | Parametrix

      University District Pedestrian Bridge

    Project Delivery

    “In my five years as a construction administration trainer and documentation reviewer, I have never seen a project run more smoothly. You made my job much easier and I hope to be working with all of you again soon.”

    Jodi DeLay, WSDOT Local Programs, Northwest Region