Cornelius Pass Road

Cornelius Pass Road
Route information
Maintained by Washington County, ODOT
Length	13 mi[1] (21 km)
Component highways	OR 127 between US 26 and US 30
Major junctions
South end	SE Deline Street in Hillsboro
Major intersections	OR 8 in Hillsboro US 26 in Hillsboro
North end	US 30 near Portland
Location
Country	United States
State	Oregon
Counties	Washington, Multnomah
Highway system
Oregon Highways Interstate US State Named Scenic
← OR 126 → OR 130

Cornelius Pass Road is an arterial road in the Portland metropolitan area of Oregon, United States. The north–south road serves as an arterial connection between U.S. Route 30 (US 30) in Burlington and Southeast Deline Street in Hillsboro. It intersects with several main roads and highways throughout its route, including Oregon Route 10, Oregon Route 8, Cornell Road, and U.S. Route 26 (US 26). Between US 30 and US 26, the road is signed as Oregon Route 127 (OR 127) and named the Cornelius Pass Highway No. 127 (see Oregon highways and routes).

The steep northern portion of the road included in OR 127 was built at the end of the 19th century and had its elevation reduced multiple times. Due to development along the southern portion of the route starting in the late 20th century, the road has been subject to several extensions, including in 1996, when it assumed superseded 216th and 219th Avenues in a realignment. Cornelius Pass Road terminated at OR 8/Tualatin Valley Highway until 2016, when the first of several extensions opened due to the development of South Hillsboro.