Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Structure, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Transverse Braces, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet 777 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Transverse Diagonal and Verticals, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet 777 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Transverse Stringer, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet 777 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Trunnions/ Braces, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet 422 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Sketch - Bolts and Washer, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Sketch - Part - Viaduct, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet RR - 356, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Sketch - West End Viaduct, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet RR - 355, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Ties Bolts and Washer, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet 0 - 1 - 1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Wood Block, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet 0 - 1 - 1, undated.