210 from east of Corvallis to Lebanon, of the Oregon state highway system.

[2] In Corvallis, OR 34 includes a brief concurrency with U.S. Route 20 and OR 99W over the Pacific Highway West No.

OR 34 and US 20 share the same roadway between Philomath and the college town of Corvallis.

At a grade-separated interchange in eastern Corvallis, OR 34 leaves U.S. 20 (which heads north with Oregon Route 99W) and crosses the Willamette River into Linn County.

Milepoints are as reported by ODOT and do not necessarily reflect current mileage.