MP: 10.75 Location: Trent Ave and Sullivan Rd, Spokane Valley Reassurance shield after the only interchange on SR 290, a diamond with Sullivan Rd MP: 12 Location: Trent Ave and Wellesley Ave, Spokane Valley Holy Moses! This is the only instance in the state that I know of where WSDOT gets to replicate an Idaho … Continue reading State Route 290, SR 27 to ID-53/ID State Line