We maintain 27 bridges, including six on the Willamette River. We also maintain nearly 300 miles of roads in the cities of Fairview, Troutdale, and Wood Village and in unincorporated areas including Sauvie Island, the West Hills and the Corbett area. We are responsible for the design, construction, maintenance, operation, and planning for these roads and bridges, and we are also home to the County Surveyor’s office.


We manage and maintain six Willamette River bridges and over 20 smaller bridges elsewhere in the county.

We don't maintain any of the Willamette River bridges that carry state or interstate highways or freight trains. Learn more about our Willamette River bridges.


We manage and preserve the county road infrastructure, and provide a safe and efficient transportation system that supports economic and community vitality. Our programs include:

We don't maintain any roads in the cities of Portland and Gresham. In Fairview, Troutdale and Wood Village, we maintain most of the major roads but no residential streets. Learn more about our roads.

Survey Office

We review and maintain public survey records and make them available to the public, review and approve land divisions, maintain survey monuments, and assist other agencies and the public with our survey  expertise.

Transportation Planning and Development

We manage the development of plans to address all modes of transportation at both the local and regional level.