Spokane, Portland and Seattle Railway Engineering Drawing: General Plan and Elevation, Bridge 10.92 - Apple Tree Road, Vancouver, Washington, Line Segment 047, Milepost 10.92. Sheet 377 - 8276 - 1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan Machinery House, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 13 - 17, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Guard Angle Details, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 3 - 26 - 6, undated.

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

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

Spokane, Portland and Seattle Railway Engineering Drawing: Interlock Device, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 13 - 36, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Ladders and Supports, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 1 - 9 - 20, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Lamp Box, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 13 - 1, undated.