Oregon Route 10 is an Oregon state highway which serves Portland and some of its western suburbs.
Route description
OR 10 begins as Naito Parkway in Downtown Portland starting where Naito Parkway interchanges with U.S. Route 26. It heads south out of downtown, multiplexed with Oregon Route 99W. After passing under the Portland Aerial Tram, Naito Parkway ends at an interchange with Barbur Boulevard; the two routes continue south out of Portland on Barbur. OR 10 separates from OR 99W a few miles south of downtown, and proceeds along Capitol Highway through the Portland neighborhood of Hillsdale. Along here, it is a surface street, which cuts through the southern part of Portland's West Hills. It separates from Capitol Highway in Hillsdale, which continues unnumbered. The highway continues west into Washington County, where it becomes Beaverton-Hillsdale Highway No. 40.
In the community of Raleigh Hills, OR 10 intersects with Oregon Route 210 (locally known as Scholls Ferry Road), which heads southwest towards Progress, Tigard, and Scholls. OR 10 continues west into Beaverton, where it interchanges with Oregon Route 217, a freeway, and stops being Beaverton-Hillsdale Highway No. 40.
thumb|Highway in Raleigh Hills
History
The oldest section of Oregon Route 10 was Farmington Road. Established circa 1848 as part of a larger route from Lafayette, Oregon to Portland, Oregon, known as the Portland-Yamhill Falls Road. This section followed from the Harris Ferry in Farmington, Oregon, to Canyon Road in Beaverton, Oregon. The specific route of the road would later become lost, and it would then be reestablished in its modern routing in 1898. In 1932, Farmington Road became part of Oregon's highway system, and was designated Oregon Route 208.
Initially, Farmington Road was referred under several names, such as the Harris Bridge Road, the Farmington and Portland Road, and the Portland-Lafayette Road, all interchangeably. The road would end up being referred to as the Campbell Bridge-Beaverton Road by the Oregon State Highway Department in 1928, and when it became a secondary highway in 1936, It was referred to as Farmington highway, with the constituent road being referred to as Farmington Road. In 1920, it would become a part of Oregon's highway system and in 1937, the highway was officially renamed to the Beaverton-Hillsdale Highway. Construction would commence circa 1990-1991, and complete before July 16, 1992.