Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet RR - 543, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge T67.0 - Eagle Creek, Dant, Oregon, Line Segment 053, Milepost 67.00. Sheet RR - 541, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge T60.6 - Nena Creek, south of Cambrai, Oregon, Line Segment 053, Milepost 60.54. Sheet RR - 539, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge T57.5 - Waupanita Creek, south of Cambrai, Oregon, Line Segment 053, Milepost 57.47. Sheet RR - 537, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge T49.2 - White River, south of Sherar, Oregon, Line Segment 053, Milepost 49.20. Sheet RR - 536, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge E89.0 - Santiam River, south of Sidney, Oregon, Line Segment 442, Milepost 88.55. Sheet WX - 105, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99. Sheet WX - 132, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure Repairs, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71. Sheet TV - 270, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure Plans, Bridge G14.5 - Klickitat River, Klickitat, Washington, Line Segment 439, Milepost 14.37. Sheet TV - 229, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Substructure Plans, Bridge E98.6 - Calapooia River, south of Albany, Oregon, Line Segment 442, Milepost 99.87. Sheet WX - 111, undated.