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

Spokane, Portland and Seattle Railway Engineering Drawing: Draw Span Protection, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet TV - 265, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Draw of Controller, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 5 - 14, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Double Air Lock, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 8 - 7, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Direct of Jacking, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet 231 - 7065 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Details of Truss, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 1 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Details of Truss, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 1 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Details of Towers, Bridge 5.8 - Willamette Boulevard, north of Willbridge, Oregon, Line Segment 047, Milepost 5.80. Sheet AA - 502, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Details of Ties, Bridge 5.7 - Union Pacific Railroad, north of Willbridge, Oregon, Line Segment 047, Milepost 5.73. Sheet NO - 226, undated.