Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Details, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 10 - 13, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Bed Plate, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet SS514, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Expansion Clamp, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet TV - 282, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Extension, Bridge 10.4 - 5,6,7th Streets, Vancouver, Washington, Line Segment 047, Milepost 10.40, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Probing Survey, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet CL - 106 - 17, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Power Supply - DC, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet EB 102B, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Portal Details, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 16 - 6, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Portal and Top Struts, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 1 - 9 - 14, undated.