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Spokane, Portland and Seattle Railway Engineering Drawing: Wiring Diagram for Circuit, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wiring Diagram for Circuit, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wiring Diagram End Lift Motor, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet DW - EB100W - 1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wingwalls, Bridge 10.92 - Apple Tree Road, Vancouver, Washington, Line Segment 047, Milepost 10.92. Sheet 362 - 8103, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wingwalls, Bridge 10.92 - Apple Tree Road, Vancouver, Washington, Line Segment 047, Milepost 10.92. Sheet 377 - 8276 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wingwall Details, Bridge 0.1 - north Portland Road, North Portland Junction, Oregon, Line Segment 047, Milepost 0.07. Sheet 256 - 6778 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wheel Brackets/Casting Box, Bridge A62.7 - Clatskanie River, west of Clatskanie, Oregon, Line Segment 440, Milepost 62.67, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Wheel Bracket and Boxes, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: west Span Layout, Bridge G2.1 - County Road, north of Lyle, Washington, Line Segment 439, Milepost 2.02. Sheet NO - 417 - D, undated.