AMP: Salmon River Hwy #39/27
Location: OR 18 and OR 22, Polk Cty
Reassurance shield after the OR 22 split.
AMP: 30
Location: OR 18 and Harmony Rd, Yamhill Cty
Reassurance shield a mile and a half later as we cross into Yamhill County.
AMP: 33
Location: OR 18 and Loganberry Ln, Yamhill Cty
Reassurance shield a couple miles later.
AMP: 34
Location: OR 18 and OR 18 Business, Yamhill Cty
Shortly after that, Oregon 18 Business traffic merges back onto OR 18. There is no direct access back to 18 Business west.
