Spokane, Portland and Seattle Railway Engineering Drawing: Standard 60 Foot Deck Plate Girder (DPG), Bridge Standard Plan. Sheet AA - 414, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Standard 50 Foot Deck Plate Girder (DPG), Bridge Standard Plan, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Standard 44 Foot 8 Inch Girder, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet 777 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Standard 35 Foot Deck Plate Girder (DPG), Bridge Standard Plan, Line Segment 999. Sheet J - 8 - 8, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Standard 110 Foot Deck Plate Girder (DPG), Bridge Standard Plan. Sheet AA - 128, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Standard 100 Foot Deck Plate Girder (DPG), Bridge Standard Plan. Sheet AA - 432, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stairway Operating House, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 1 - 9 - 17, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stairway Operating House, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 1 - 15, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stairs/Platforms, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99. Sheet V - 4 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Special Nuts, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet NN - 192, undated.