Advocates threw a funeral procession for Ballard light rail ahead of the move.

At a marathon five-hour board meeting Thursday, the Sound Transit board approved a sweeping update to its rail expansion plans, choosing which transit projects to prioritize and which to delay or defer indefinitely. The big shakeup is in response to a precipitous $34 billion budget shortfall over the next two decades. The final vote to recalibrate the plan was approved 16-2, with Seattle Councilmember Dan Strauss and King County Councilmember Claudia Balducci voting no.

The adjustments approved Thursday now leave agency leaders with a need to find $9.3 billion to $11.3 billion in cost savings (or new dollars) to complete the major projects included in the 2016 ST3 package approved by voters, with another $2.5 billion in projects fully deferred and unlikely to be built.

Among the projects that now have unclear futures: a commuter rail extension of the Sounder S Line to DuPont, additional off-peak trips on the broader S Line…