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Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 42.7 - Duncan Creek, east of Skamania, Washington, Line Segment 047, Milepost 42.67. Sheet CC 517, 1920.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 348.6, north of Rodna, Washington, Line Segment 047, Milepost 348.6. Sheet SS - 612, 1950.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 304.4 - Cow Creek, north of Hooper, Washington, Line Segment 047, Milepost 304.4. Sheet NO - 289, 1949.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, Line Segment 047, Milepost 291.4. Sheet TV294A, 1960.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, Line Segment 047, Milepost 291.4. Sheet TV294A, 1960.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet NO2332, 1959.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet NO233B, 1959.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 267.6 - Bouvey Canyon, Windust, Washington, Line Segment 047, Milepost 267.6. Sheet NO - 236, 1931.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO237 - A, 1960.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet NO237 - A, 1960.