Oregon Route 233

For the unsigned Highway 233, see West Diamond Lake Highway.

Oregon Route 233 is an Oregon state highway which runs between the cities of Amity and Dayton, USA, in the Willamette Valley.

Oregon Route 233
Route 233 highlighted in red
Route information
Maintained by ODOT
Length	10.70 mi (17.22 km)
Major junctions
South end	OR 99W near Amity
Major intersections	OR 18 in Dayton
North end	OR 99W near Dayton
Location
Country	United States
State	Oregon
County	Yamhill
Highway system
Oregon Highways Interstate US State Named Scenic
← OR 230 → OR 234

Route description

OR 233 begins at an intersection with Oregon Route 99W in Amity. It heads northeast from there, passing through Willamette Valley farmland, ending at an intersection with Oregon Route 18 between Dayton and McMinnville. The highway then heads east (through Dayton), concurrent with OR 18, before both highways terminate at an intersection with OR 99W just west of Dundee.

OR 233 comprises part of the Salmon River Highway No. 39 (see Oregon highways and routes), part of the Lafayette Highway No. 154, and the Amity-Dayton Highway No. 155. The concurrency with OR 18 comprises the Salmon River Highway section.

Major intersections

The entire route is in Yamhill County.

Location	[1]	km	Destinations	Notes
Amity	0.0	0.0	OR 99W – Amity, Corvallis, McMinnville, Forest Grove
Dayton	7.4	11.9	OR 154 south – Salem	Northern terminus of unsigned OR 154
	7.9	12.7	OR 18 west – McMinnville	Southern end of OR 18 overlap
	9.4	15.1	OR 221 south – Dayton, Salem	Northern terminus of OR 221
​	10.6	17.1	OR 99W north	Termini of OR 18 and 233, no access to OR 99W south from OR 18/233
1.000 mi = 1.609 km; 1.000 km = 0.621 mi