For the sixth weekend since November, light rail customers in Seattle will have to detour around a five-station shutdown through downtown.

Westlake, Symphony, Pioneer Square, International District/Chinatown and Stadium stations will close from 10 p.m. Saturday, June 7 until 5 a.m. Monday, June 9, for electrical and software tests.

Sound Transit says it needs to finish making connections between the Eastside 2 Line and the growing 1 Line in Seattle. An overdue 2 Line segment crossing Lake Washington, in the former I-90 express lanes, is currently expected to be done by early 2026.

During a 36-hour test, technicians and engineers will go into tiny control rooms within three or four electrical substations close to downtown rails, and manipulate the controls to simulate future operating sc

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