Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Crossing, Bridge 24.8 - Washougal River (West End), Washington, Line Segment 047, Milepost 28.78. Sheet N - 1 - 6, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Concrete Wall, Bridge E71.6 - Mill Creek, south of Salem, Oregon, Line Segment 442, Milepost 71.26. Sheet SS - 419, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Arrangement of Track, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 2 - 12, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 75.3 - Sawmill Road, Bingen, Washington, Line Segment 047, Milepost 75.29. Sheet N - 5 - 11, 1907. Note: Steel span
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet N - 2 - Z, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 31.3 - Hathaway Creek, east of Washougal, Washington, Line Segment 047, Milepost 31.32. Sheet N - 1 - 7, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 24.8 - Washougal River (West End), Washington, Line Segment 047, Milepost 28.78. Sheet N - 1 - 6, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 10.4 - 5,6,7th Streets, Vancouver, Washington, Line Segment 047, Milepost 10.40. Sheet 0 - 3 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutments, Bridge 10.4 - 5,6,7th Streets, Vancouver, Washington, Line Segment 047, Milepost 10.40. Sheet 0 - 3 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutment, Bridge T67.0 - Eagle Creek, Dant, Oregon, Line Segment 053, Milepost 67.00. Sheet 0 - 3 - 23, undated.