SNOQUALMIE, Wash. — Washington state’s second diverging diamond interchange opened Friday morning near state Route 18 and ...

Washington State has opened a new diverging diamond interchange at I-90 and SR 18 to improve traffic flow and safety.

WSDOT is urging drivers to prepare for a weekend of traffic delays due to major events and construction across the Seattle ...

WSDOT is seeking sanctions against ex-employee Scott Smith and his lawyers after a baseless lawsuit was withdrawn.

Cleanup crews are working to contain petroleum that leaked from a tanker truck that crashed and flipped upside down on ...

The Washington State Department of Transportation is blaming a “cybersecurity incident” for taking out parts of its website and app this week, disrupting the flow of travel-related information.

Hammond spent 35 years with the Washington State Department of Transportation (WSDOT) and was transportation secretary during the early years of planning for the viaduct replacement.

The head of Washington State Ferries is stepping down in early 2024 after three years on the job and more than three decades at the Washington State Department of Transportation.

Highways won’t cure Washington state’s traffic woes and preventing congestion is impossible, said Roger Millar, head of the Washington state Department of Transportation. At a meeting of the ...