Last Driven June 2019 (Historic Photo: August 2008) MP: .15 Location: SR 221 and SR 14, Paterson, Benton Cty No reassurance shield at the beginning of 221, though there used to be one in 2008. SR 221 carries a ton of truck traffic from the aggrarian areas along the Prosser-Paterson corridor to Hermiston, Oregon. As … Continue reading State Route 221, SR 14 to SR 22