U.S. Route 101 in Oregon

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "U.S. Route 101 in Oregon" – news · newspapers · books · scholar · JSTOR (September 2018) (Learn how and when to remove this message)

U.S. Highway 101
Oregon Coast Highway
US 101 highlighted in red
Route information
Maintained by ODOT
Length	363.11 mi[1] (584.37 km)
Existed	November 11, 1926 (1926-11-11)–present
Tourist routes	Lewis and Clark Trail Pacific Coast Scenic Byway
Major junctions
South end	US 101 at California state line
Major intersections	US 20 in Newport US 26 near Cannon Beach US 30 in Astoria
North end	US 101 at Washington state line
Location
Country	United States
State	Oregon
Counties	Curry, Coos, Douglas, Lane, Lincoln, Tillamook, Clatsop
Highway system
United States Numbered Highway System List Special Divided Oregon Highways Interstate US State Named Scenic
← OR 99W → OR 103

U.S. Route 101 (US 101), is a major north–south U.S. Highway in Oregon that runs through the state along the western Oregon coastline near the Pacific Ocean. It runs from the California border, south of Brookings, to the Washington state line on the Columbia River, between Astoria, Oregon, and Megler, Washington.

US 101 is designated as the Oregon Coast Highway No. 9 (see Oregon highways and routes), as it serves the Oregon Coast region. Much of the highway runs between the Pacific Ocean and the Oregon Coast Range, thus US 101 is frequently mountainous in character. For most of its length it is a two-lane undivided highway. Many parts of the highway are subject to closure due to landslides caused by excessive rainfall, and in many parts of the coast, US 101 is the only viable route connecting certain coastal communities. Thus, in many cases when landslides block US 101, the detour requires traveling inland over the Coast Range to alternative north–south routes in the Willamette Valley and then back west over the Coast Range again.

US 101 is often the main street through coastal towns in Oregon, which can cause significant traffic delays. This is especially true in Lincoln City, where geography and tourism combine to create traffic problems.