SEATTLE — Sound Transit is facing a shortfall of $22 billion to $30 billion for major expansion work in the central Puget Sound area, the agency's board of directors were told Thursday.

That's a hefty increase in the budget shortfall compared to 2021, when a realignment plan was announced that included the agency showing a $6 billion shortfall .

Now, the agency needs billions more to complete its Sound Transit 3 (ST3) light rail projects. Those include extensions to West Seattle , Ballard , the Tacoma Dome, Tacoma Community College, Everett and South Kirkland-Issaquah , according to a presentation to the board of directors. The infill stations at Graham Street and Boeing Access Road are also under the ST3 umbrella of projects.

The shortfall "represents conservative and unmitigat

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