This line began service as the Multnomah Street Railway Company’s Fifteenth Street branch in July 1883, operated with horse cars.
| Years of Operation: | July 28, 1883 (horse car)–??? (electrification)–May 21, 1937 |
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| Operating Companies: | ‣ |
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| Gauge: | Narrow (3-feet, 6-inches) |
| Headboard: | “16” |
| Car Barn: | ‣ |