Major Streets Transportation Improvement Program (MSTIP)

MSTIP Color 2

Local taxes + local input = countywide improvements

What is MSTIP?
MSTIP is local property taxes at work building major transportation improvements countywide. By 2013, MSTIP will have built 111 multi-modal projects (totaling $555 million) that county residents and businesses rely upon every day. The program began as a series of serial levies (1986, 1989 and 1995), and voters rolled it into the county's fixed tax rate in the late 1990s.

This innovative pay-as-you-go program has been praised across the state as a smart and balanced response to growth. It is a key piece of the county's transportation funding strategy.


How does MSTIP work?
The Board of County Commissioners decides upon MSTIP funding amounts as part of the annual budget process. While the county manages MSTIP projects, most of the money goes back into the local community—to private sector planning and engineering firms, and to construction contractors on a competitive bid basis to build projects under county supervision. MSTIP funds can also be used to leverage other local, state and federal funds to provide even more benefit across the county.

Does MSTIP benefit all modes of transportation?
Yes. MSTIP has improved access and mobility for all users by improving many transit and freight routes and by constructing over 130 miles of bikeways and sidewalks.


What projects are planned/in progress?
Visit our Capital Projects page for a list of major county transportation projects in the planning, design and construction stages. You can select any project to obtain more information on its funding.


What MSTIP projects have been completed?
Major projects completed to date include sections of:

  • 170th Avenue
  • Evergreen Parkway/Road
  • 185th Avenue
  • Murray Boulevard
  • Baseline Road
  • Oleson Road
  • Brookwood Avenue/Parkway
  • Roy Rogers Road
  • Cornelius Pass Road
  • Scholls Ferry Road
  • Cornelius-Schefflin Road
  • Tualatin-Sherwood Road  
  • Cornell Road
  • Verboort roundabouts  

 Cornell Before and After

Cornell Road Before and After

How are MSTIP projects selected?
Project selection is a joint effort of the county and our cities. Elected officials from these jurisdictions meet regularly as the Washington County Coordinating Committee (WCCC) to address local and regional transportation issues. The WCCC makes MSTIP project recommendations to the Board of County Commissioners, which ultimately authorizes the projects. Generally projects have had to meet certain criteria to be eligible for MSTIP funding:

  • Improve safety
  • Remove bottlenecks
  • Major roads used by many residents
  • Address multiple transportation demands (cars, trucks, bikes, pedestrians, transit)
  • Rank as high local government priorities
  • Geographically balanced, providing benefit to residents all around the county


What's next for MSTIP?
Most MSTIP projects currently in the design and construction stages were funded under the MSTIP 3b or 3c programs. Those projects will be substantially complete in 2013. In January 2012, the WCCC began the process of developing MSTIP 3d — a list of projects to be funded in fiscal years 2013-14 through 2017-18. We are projecting an average of $35 million in annual funding over that period, for a total of $175 million. 

On July 24, 2012, the Board of Commissioners adopted the five-year $175 million MSTIP 3d Funding Program, which includes: $160 million for 19 multi-modal road projects; $10 million for replacement of deficient rural bridges; $5 million to be used to leverage other local, state or federal transportation funds (which may be used for bicycle and pedestrian projects); and $500,000 for upgrades to the county's advanced traffic management system. 

We will be working to keep the public updated as MSTIP 3d projects progress into the project development and construction phases.


Want to keep up with the latest MSTIP news?
Visit the County's eSubscriptions page and sign up to receive e-mail updates when additional information is posted to the MSTIP or MSTIP 3d web pages. 

You can also sign up to receive periodic e-mail updates on specific road projects. Visit the "Transportation Projects" section of our eSubscriptions page periodically and sign up for any current projects you are interested in. 

You can also find out about current and upcoming County roadwork by visiting us at


What do you think?
Feel free to leave us a comment. We value your input!


Related Document: MSTIP and MSTIP 3d Informational Handout (updated October 30, 2013)