Portland and Southwestern Railroad Tunnel

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Q7232082




The Portland and Southwestern Railroad Tunnel, also known as the Nehalem Divide Railroad Tunnel, is an abandoned railroad tunnel near Scappoose, Oregon, United States, that is listed on the National Register of Historic Places. The tunnel was driven by the Portland and Southwestern Railroad, whose chief business was logging. Unusually for a logging railroad, the Portland and Southwestern built tunnels. In order to reach the far side of the Nehalem divide in the Northern Oregon Coast Range, the railroad undertook a 1,712-foot (522 m) tunnel. Some work was started in 1910, but most work began in 1918 and was completed in 1919. Since the tunnel was not through solid rock, the tunnel was lined with timber. The tunnel was used until 1945, when it was replaced by a truck road over the divide.

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railway tunnelQ30

  • National Register of Historic Places listed place page@
  • National Register of Historic Places page@
  • Oregon Historic Sites Database page@
  • ​ ​ ​ ​ ​ ​ ​


Location: 45.8324, -123.05, KML, Cluster Map, Maps,
3 places

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  • Basalt Cobblestone Quarries District
    archaeological site in Washington state, USA
  • Portland and Southwestern Railroad Tunnel
    railroad tunnel near Scappoose, Oregon, United States
  • Sunset Tunnel
    Tunnel of Sunset Highway (U.S. Route 26) in Oregon
Interior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USAInterior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USA
Interior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USAInterior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USA
Ceiling sectionCeiling section
Tunnel interiorTunnel interior
West PortalWest Portal
West PortalWest Portal
    TypeSubtypeDateDescriptionNotesSource
    linkpageNational Register of Historic Places listed place page@Wikidata
    linkpageNational Register of Historic Places page@Wikidata
    linkpageOregon Historic Sites Database page@Wikidata
    sitemineBasalt Cobblestone Quarries Districtarchaeological site, quarryWikidata
    sitetunnelPortland and Southwestern Railroad Tunnelrailway tunnelWikidata
    sitetunnelSunset Tunnelroad tunnelWikidata
    commonsimageInterior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USA Commons
    commonsimageInterior lining of the Portland and Southwestern Railroad Tunnel, Oregon, USA Commons
    commonsimageCeiling section Commons
    commonsimageTunnel interior Commons
    commonsimageWest Portal Commons
    commonsimageWest Portal Commons