Scanned from the book “The Red Electrics: Southern Pacific’s Oregon Interurbans” by Tom Dill and Walter Grande.

This handsome map shows the routing of the Southern Pacific’s electric interurban trains through downtown Portland from their northern terminus at Union Station. These trains, popularly known as the “Red Electrics” after their distinctive carriages, ran from Portland all the way down the Willamette Valley as far as Corvallis, 85 miles distant. Service started in 1914, extended to Corvallis in 1917 and ceased in 1929; just 15 years later.

These big, heavy trains ran right down the middle of Fourth Avenue from Union Station with an intermediate stop at Stark and Fourth. At Fourth and Jefferson, the lines split into two services: the “Westside” route served Beaverton, Hillsboro, Forest Grove and Carlton, while the “Eastside” line served Oswego, Sherwood, Newberg and Lafayette. The two routes connected in Saint Joseph, just north of McMinnville, and then continued to Corvallis.

Of further interest, the map also shows the route of the competing Oregon Electric company, running down 10th Avenue and Salmon Street. Their terminus station was at 10th and Hoyt (the train barns still exist, repurposed as fancy loft apartments on either side of 10th Avenue), with stations at 10th and Stark, 10th and Alder, Salmon and 5th/6th, and Jefferson and Front (modern-day Naito). Also seen is the incredible network of streetcar lines at the time, visible on almost every downtown street!

Source: jackonflickr/Flickr