Yamhill County, Oregon

OR-18 East/OR-233 North at OR-221 South to Dayton and Salem.

OR-18 East/OR-223 North approaching OR-221 in Dayton.

OR-18 east at OR-233 (Lafayette Highway). Use OR-233 south for Hopewell. Turn north on Lafayette Highway for Lafayette. Continue east on OR-18 for Dayton and Newberg. OR-233 follows OR-18 north to OR-99W junction.

OR-99W North at OR-233 and OR-18 west to Dayton and Salem. OR-18 is the McMinnville Bypass, which runs along the south side of the city of McMinnville. This the eastern end of the bypass.

Distance marker on OR-99W north to Newberg and Portland. Taken on the east side of Lafayette.

OR-18 east at Cruickshank Road/To Salem Jct. Continue east on OR-18 for Newberg.

OR-99W North at OR-47 North. Use OR-47 north for Yamhill and Gaston.

OR-99W North approaching OR-47 North. Use OR-47 north for Carlton and Forest Grove.

Lafayette Ave. North at OR-99W in McMinnville. Turn left on OR-99W North for Forest Grove (via OR-47) and Portland. Turn left on OR-99W (South) for Corvallis and the Oregon Coast (via OR-18). In many places in Oregon the coast is referred to as the Oregon Coast on road signs.

SW Baker St. North at OR-99W. SW Baker St. is the ramp that connects OR-18 eastbound to OR-99W northbound and turns into a surface street. It is signed as OR-99W, but does not actually reach OR-99W until this light at Old Sheridan Road. Turn right for OR-99W South to Amity and Corvallis. Continue ahead for Linfield College and City Center (McMinnville).

SW Baker St. North approaching OR-99W. SW Baker St. is the ramp from OR-18 East to OR-99W north, and is signed as OR-99W. SW Baker St. actually joins with OR-99W at the next intersection with Old Sheridan Road.

OR-18 East at OR-99W North. Merge left for OR-99W/McMinnville. Stay right for OR-18 East/Dayton/Portland. This is the western end of the McMinnville bypass. OR-18 and OR-99W join on the east side of McMinnville.

OR-18 East route diagram for McMinnville area, approaching OR-99W junction. Use OR-99W as a business loop through McMinnville. Use OR-18 as a bypass around McMinnville.

OR-18 east approaching OR-99W. Merge right for OR-18 East towards Dayton and Portland.

OR-18 east approaching OR-99W. Use left lane for OR-99W North to McMinnville.

OR-99W North/OR-219 South split in Newberg. Use OR-219 south for Champoeg State Park, St. Paul, and Salem. Continue north on OR-99W for Portland.

OR-99W North Approaching OR-219 North to Scholls and Hillsboro. OR-219 joins OR-99W through Newberg.

OR-99W north approaching OR-240 north to Chehalem Valley and Yamhill. Use left lanes for OR-240 North.

OR-99W North/OR-219 South in Newberg. Use right lanes to continue north on OR-99W (to Portland) and south on OR-219 (to Salem).

OR-99W North Approaching OR-219 North to Scholls and Hillsboro. OR-219 joins OR-99W through Newberg.

OR-99W North approaching OR-240 in Newberg.

OR-99W north approaching OR-240 north to Chehalem Valley and Yamhill. Use left lanes for OR-240 North.

OR-18 east at Exit 33 - Sheridan. OR-18 becomes a freeway briefly through the town of Sheridan.