Tualatin-Sherwood Rd: Martinazzi Ave to I-5

The purpose of the project is to improve intersection operations and safety to address known capacity issues at this location, while also improving pedestrian and bicycle safety. The project includes several strategic changes to improve predictability and safety for everyone:

  • Remove planted median to allow for a longer center vehicle lane
  • Restripe exisiting lanes
  • Install new signage to let drivers know which lane to use
  • Changes to the bike lane on Nyberg Street
  • Improve biking connection between Tualatin-Sherwood Road and the Tualatin River Greenway by adding buffered bike lanes on Boones Ferry Road and wayfinding signage. This connection is important because the project is not adding bike lanes where they are missing on Tualatin Sherwood Rd.

Click image to enlarge.

For questions or to receive quarterly project updates email: tmf@tualatin.gov

The Regional Context:

What Tualatin Residents May Notice About Traffic Congestion


Most Congested Metro Area

Portland is the nation’s 40th largest – but #12 most congested metro area (of 297 metro cities)

Most Congested in North America

#13 in North America (319 cities) – more congested than any city in Mexico and every Canadian city except Montreal.

Most Congested in the World

#40 most congested in world (1,360 cities)


Portland area congestion is worst at peak commute hours, but now present at all times of day/week

Most Congested U.S. Cities**

  • 1 Honolulu
  • 2 Jacksonville
  • 3 San Diego
  • 4 Los Angeles
  • 5 Portland

* Source: INRIX Global Traffic Scorecard, February 2018
** Source: WAZE Driver Satisfaction Index, December 2017