TriMet closing MAX Red line routes for 6 nights of testing ahead of Hillsboro extension debut

PORTLAND, Ore. (KOIN) – TriMet is in the home stretch of its ambitious years-long effort to expand its MAX Red line, but not before their trains hit the rails for the first time.

After breaking ground in 2021, A Better Red has improved and extended the light rail system from Portland International Airport all the way to Hillsboro. It is expected to open to the public this summer.

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But before opening the extension for regular service...