Spokane, Portland and Seattle Railway Engineering Drawing: New Abutment and Change, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet AA - 366, 1913.

Spokane, Portland and Seattle Railway Engineering Drawing: New and Pres east Abutment, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet AA - 309, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: New and Pres west Abutment, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet AA - 308, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Pilot Nut and Pin, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet NN - 444, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate Girder Bearings, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet AA412, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Change, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet H - 3 - 1, 1913.