Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Rail Diagonal, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 43, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Rail and Diagonal, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 36, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Radial Struts, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 24 - 3, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Radial Bearing, Bridge 0.1 - north Portland Road, North Portland Junction, Oregon, Line Segment 047, Milepost 0.07. Sheet 256 - 6778, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Radial Beams, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 4 - 4, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Rack/Truss/Tread, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 6 - 12 - 4, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts/Verticals, Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet Z - 7 - 22 - 9, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts/Top Lateral, Bridge E98.6 - Calapooia River, south of Albany, Oregon, Line Segment 442, Milepost 98.44. Sheet 194 - 1376 - 22, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts/Pins, Bridge E98.6 - Calapooia River, south of Albany, Oregon, Line Segment 442, Milepost 98.44. Sheet 194 - 1376 - 21, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts/Hanger, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 10 - 10, undated.