what we do

Roadway and Highway Design

Designing infrastructure to safely and efficiently move people and goods

Providing safe and efficient roads and highways is more challenging today due to limited funding and increasingly complex regulatory processes. Parametrix works with clients to develop solutions that are cost effective and minimize disruption to users and the environment. We incorporate LID, green streets, and complete streets principles to create appealing, safe, and sustainable transportation right-of-ways.

Powell Butte Highway Roundabout | Parametrix
Powell Butte Highway Roundabout 
Deschutes County, Oregon
Client: Deschutes County

Residents had been avoiding the intersection of Powell Butte Highway with Neff and Alfalfa Market Roads because of safety concerns due to high speeds and limited sight distances. This new roundabout on the Powell Butte Highway increases safety for the nearly 6,000 travelers and commuters who drive through the intersection each day. Because the roundabout is located on a high-speed highway, creative solutions were developed to slow traffic and improve visibility for drivers approaching the intersection. Some of the methods included traffic calming measures such as a dynamic feedback sign, striping treatments, and extension of splitter medians. The design also addressed the need for high visibility on the approach legs so drivers are aware of changes ahead. Parametrix was responsible for project management, civil design from concept development through final PS&E, public involvement, survey, cost estimating, 3D modeling, construction staging, and construction management.

  • Honor Award, ACEC Oregon, 2017


  • US 12 and 21st Street Intersection

    US 12 and 21st Street Intersection

  • Mogollon Reconstruction | Parametrix

    NM 159 Drainage and Roadway Reconstruction

  • Idaho 16, US 20/26 | Parametrix

    Idaho 16, US 20/26 to Idaho 44

  • Pacific Avenue Improvements | Parametrix

    Pacific Avenue Improvements

  • Powell Butte Highway Roundabout | Parametrix

    Powell Butte Highway Roundabout

  • I-5 Mounts Road to Thorne Lane

    I-5 Mounts Road to Thorne Lane Improvements