United Railways

Oregon
Helvetia Road Trestle (Washington County, Oregon)
Built 1911
Beam bridge over NW Helvetia Road on Portland & Western Railroad
Open to traffic

PNWR - Holcomb Creek Trestle (Washington County, Oregon)
Built ca. 1905 for the interurban Oregon Electric Railway
Timber stringer bridge over Holcomb Creek and Dick Road on Portland and Western Railroad
Open to traffic

PNWR - Phillips Road Bridge (Washington County, Oregon)
Lost Beam bridge over NW Phillips Road
Removed but not replaced