Service from Portland Union Station to Whiteson via Beaverton, Hillsboro, Forest Grove, Carlton and McMinnville. Passengers for points further south transferred at McMinnville or Whiteson for East Side trains to Corvallis. Also known as the “Fourth-street Line” after the street it left Portland’s downtown on.
Electric service on this branch ended on July 28, 1929, a few months earlier than on the East Side branch. Bus service to Portland could follow a more direct route than the trains.
| Important Dates: | January 18, 1914 – Commencement of West Side service to Whiteson February 15, 1914 – City loop through Hillsboro opens for trains May 31, 1914 – “Loop” excursion train service begins July 28, 1929 – End of electric train service on West Side branch | | --- | --- | | Operating Companies: | ‣ ‣ | | Gauge: | Standard (4-feet, 8.5-inches) | | Headboard: | Train numbers supplemented by “West Side” destination boards | | Car Barn: | ‣ |