I-5 Canadian Border to south of BurlingtonI-5 north of Mt. Vernon to south of EverettI-5 north of Lynnwood to SeaTacReversible Express Lanes for I-5I-5 SeaTac to DuPontI-5 north of Nisqually to NapavineI-5 Winlock to Kelso/Longview I-5 north of Kalama to Oregon State border
I-90 Seattle to east of IssaquahReversible Express Lanes for I-90I-90 Auburn to east of EastonI-90 west of Cle Elum to east of GeorgeI-90 east of George to west of RitzvilleI-90 west of Ritzville to west of SpokaneI-90 west of Spokane to Idaho State Border
Interstate 405 north of Bothell to south of Renton
Interstate 705
I-205 to Oregon State border
I-82 Ellensburg to east of Zillah
I-82 Granger to Oregon State Border, I-182 Richland to east of Pasco