Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet Z - 6 - 14 - 23, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 9 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge E98.6 - Calapooia River, south of Albany, Oregon, Line Segment 442, Milepost 98.44. Sheet 194 - 1376 - 20, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 17 - 9, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 12, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 72.8 - White Salmon River, east of Hood, Washington, Line Segment 047, Milepost 72.80. Sheet JK - 314, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 7 - 10, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 7 - 9, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals, Bridge 304.4 - Cow Creek, north of Hooper, Washington, Line Segment 047, Milepost 304.4. Sheet 422 - 3, undated.