Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer, Frames, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 17, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Details, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 24, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Details, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 25, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Bracket, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 212 - 1, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Bracket, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 212 - 4, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Bracket, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 212 - 2, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer Bracket, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 212 - 3, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer and Brace, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 17 - 14, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer and Brace, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, Line Segment 047, Milepost 291.4. Sheet 0 - 4 - 15, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stress Diagram, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 1, undated.