461.07 Arterial roads primarily accomodate through traffic.
Collectors handle both thgough and access traffic to adjoining properties.
Local roads are used primarily to access property. Additionally, resource roads are those local roads which carry an average of 500 or more vehicles per day. The total miles in the Yamhill County Road system is 663.49, of which 297 miles are paved with the remainder either gravelled or unimproved. Yamhill County has 133 bridges under its maintenance jurisdiction.