Spokane, Portland and Seattle Railway Engineering Drawing: Wiring Diagram, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 13 - 16, 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. Sheet EB 102 - 2, 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 for Circuit, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31, 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.