Washington State Dept. of Transportation (WSDOT) on Instagram: "The SR 18/I-90 Diverging Diamond Interchange is HERE! A kiss on the hand may be quite continental… but it won’t help you get on the freeway safer, easier and more efficiently. That’s why DDIs are everyone’s best friend 💎 We opened this DDI - only the second in the entire state! - following an 8-day closure of SR 18 under the I-90 bridges to build the north end and switch traffic into the new configuration. Why a DDI? The crossing a