Electrically-powered lines extending out past the Portland city limits. Abandonment dates listed below are for passenger service; many of these lines continued as freight-only operations after passenger service ended.
Gladstone Park Branch (1893–1901)
Gladstone Park Branch (1907–1926)
Oregon Electric – Corvallis (1913–1931)
Oregon Electric – Forest Grove (1908–1932)
Oregon Electric – Main Line (1908–1933)