Service to Cazadero was routed via Lents and Gresham, along the Springwater Corridor, and the Gresham–Boring–Cazadero section was built in 1903–04, with electric interurban service reaching Boring in 1903[4] and Cazadero in 1904.[5] The line was built and operated by the Oregon Water Power and Railway Company (OWP), but by 1906 OWP had been taken over the PRL&P,[5][6] which in turn was reorganized as PEPCO in 1924.[7]
Cazadero station was located three stations beyond Estacada on the interurban line[6] and was the end of the line for many years, until PEPCO eventually developed the line farther up the river.[2] The interurban service was abandoned in 1933,[5] but the line remained intact and usable for freight service for many more years; for example, an excursion by railfans in an old interurban car covered the line in 1953.[8]