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Design phase
Updated: Jan. 20, 2026
Convert the two intersections to two roundabouts, widen the travel lanes to 12 feet, and add bike lanes.
We will also replace the culvert at Boeckman Creek under the intersection with a fish passable culvert, and add stormwater facilities to treat water runoff.
Clackamas County is partnering with Washington County and the City of Wilsonville since the intersection spans multiple jurisdictions.
Proposed design for the two roundabouts.
Why
To reduce congestion and improve safety for all travelers, and provide safe passage for fish and other wildlife though waterways.
Schedule
- Project planning and design: Fall 2024 – Summer 2027
- Right of Way Acquisition Efforts: Spring 2026 – Summer 2027
All right of way acquisitions are conducted as required by state and federal law. Read right of way brochure: English | Spanish. - Construction: Winter 2027 – Spring 2029
Current activities
Stafford-65th-Elligsen roundabout open house, Feb. 10
5:30 to 7:30 p.m., Tuesday, Feb. 10
Wilsonville City Hall 29799 Town Center Loop E, Wilsonville, OR 97070Ask your questions to transportation experts at an in-person open house. Our engineering design team is creating a 60% level layout for your review.
It's important to discuss the project with neighbors and learn new things about the project area to help inform the design. After design plans are finalized, it is difficult and more expensive to change design features.
- Refining the proposed improvement design, utility coordination, and environmental permitting.
Traffic impact
- Road closures are anticipated for a portion of this project. When construction work can safely occur with traffic, one lane will be closed at a time.
Funding
- Project estimate $14 million
- Funding is provided from Community Road Fund and Transportation System Development Charges, City of Wilsonville funds, and Washington County funds
Resources
- Presentation to Stafford Hamlet [video], Nov. 12
- Open house #1 documents
