Portland-Milwaukie light-rail transit (LRT), USA September 1, 2013 | North America Project Update Developer: Tri-County Metropolitan Transportation District of Oregon (TriMet) Project description: Development of a 11.75-km (7.3-miles) light-rail transit (LRT) line from downtown Portland to Mil... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password