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Traffic moves along I-405 between Highway 522 and Highway 527 where WSDOT received the approval to build a second express toll lane on Friday, Aug. 20, 2021 in Bothell, Wash. (Olivia Vanni / The Herald)

News

State gets environmental OK for second I-405 toll lane

Toll lanes would be added in both directions on the stretch between Highway 522 and Highway 527.

In a zipper merge, cars continue in their lanes and then take turns at the point where the lanes meet. (Koenb via Wikimedia Commons)

News

Do Washington drivers need to learn the zipper merge?

Legislators propose requiring zipper merge instruction in drivers education and in license test.