United Railways

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

PNWR - Cornelius Pass Railroad Tunnel (Multnomah County, Oregon)
Built 1911
Tunnel under Under Cornelius Pass Road on Portland & Western Railroad
Open to traffic

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