[1] To start the project, the company needed improved access to the powerhouse site.
At the time, it took three hours by stagecoach to reach Bull Run from an electric railway depot in Boring.
Access improved in mid-1911, when the company finished construction on a railway line between the Montavilla neighborhood in east Portland and the community of Bull Run.
[3] In the 21st century, part of the Metropolitan Area Express (MAX) Blue Line, a light-rail corridor between Portland and Gresham, overlaps the former PRL&P right-of-way.
[4] PRL&P interurban service along the section of East Burnside Street that is now used by MAX, between I-205 and Ruby Junction (near 197th Avenue), was abandoned in 1927.