For four decades, the Major Streets Transportation Improvement Program (MSTIP) has strengthened connections across Washington County—linking neighborhoods, supporting our local economy, and making everyday travel safer and more accessible for everyone.
MSTIP is a countywide program that has funded more than 160 transportation improvements in cities and unincorporated areas throughout Washington County. These projects help people travel safely and reliably, whether they walk, roll, bike, take transit, or drive.
View the interactive GIS map to explore MSTIP projects across Washington County. Explore decades of improvements that have enhanced mobility and strengthened community connections.
As we celebrate MSTIP40, we honor the projects and partnerships that have brought us together, and the shared journeys on the roads often taken.
Explore Our Shared Journeys
For 40 years, MSTIP has shaped how we move, commute, and connect. These projects support the trips that matter most: school drop-offs, bus rides, deliveries, daily commutes, visits with friends and family, and all the shared journeys that connect our communities.
Watch MSTIP Videos Through the Decades
Take a look back at the legacy of MSTIP through these archived YouTube videos:
- Introduction: Washington County MSTIP
- Conclusion: Washington County MSTIP
- MSTIP 3e
- MSTIP ’23-‘28 (note this video was part of an open house to solicit input on the projects that could be funded. Not all projects mentioned were ultimately funded.)
A Story of Innovation & Community Investment
MSTIP began with voter-approved levies in 1986, 1989, and 1995.
In 1997, Oregon’s Measure 50 incorporated the MSTIP 3 levy rate into a new permanent County property tax rate. Since then, the Washington County Board of Commissioners has continued to allocate dedicated funding to maintain and grow this program.
Since its inception in 1986, MSTIP’s direct and leveraged funding has generated more than $1.35 billion in transportation investment projects across Washington County. Each funding cycle is developed with local jurisdictions and the community, ensuring the program reflects shared needs and community priorities.
Thanks for being part of the MSTIP40 story. Your involvement and support help ensure that Washington County can continue investing in the connections that bring our communities together.
A Summer of Celebrating the Roads Often Taken
MSTIP40 celebrated the community, connection, and the everyday journeys that make Washington County home.
Throughout the summer, we visited festivals and family-friendly gatherings across Washington County. Community stopped by to learn about MSTIP projects, share stories, pick up MSTIP BINGO cards, and grab fun retro swag.
Signature events included the kickoff at ¡Viva Tualatin!, lively evenings at the Bethany Village Summer Market, community fun at the Washington County Fair, hands‑on excitement at Big Truck Day, and a festive finale at the Elephant Garlic Festival.
Residents also explored MSTIP project sites through the MSTIP40 BINGO challenge, marking off features as they traveled the county. Participants completed rows or full BLACKOUTs for prizes and entered a grand‑prize drawing.
Overall, MSTIP40 offered a summer of connection, discovery, and celebration throughout Washington County.