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Spokane, Portland and Seattle Railway Engineering Drawing: Vicinity of Map, Bridge E71.8 - County Road, Salem, Oregon, Line Segment 442, Milepost 74.75, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Vicinity Map, Bridge T151.7 - Third Avenue, Bend, Oregon, Line Segment 053, Milepost 151.74. Sheet 2169A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Vicinity Map, Bridge 10.7 - Columbia Street, Vancouver, Washington, Line Segment 047, Milepost 10.69. Sheet 362 - 8103, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Vicinity Map, Bridge 10.7 - Columbia Street, Vancouver, Washington, Line Segment 047, Milepost 10.69. Sheet 362 - 8103, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet B4183, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Viaduct Bent Number 8, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet N - 4 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Upstream Current E Rest, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71. Sheet TV - 414A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Undergrade Crossing, Bridge T151.0 - Greenwood Ave, Bend, Oregon, Line Segment 053, Milepost 151.03, undated.