Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 26, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 19 - 7, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal Details, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 31, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal Detail, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 15 - 23, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal Detail, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 7 - 12, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal and Strut, Bridge 58.8 - Wind River, east of Stevenson, Washington, Line Segment 047, Milepost 58.74. Sheet 777 - 1, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Platform, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 214 - 16, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Platform, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 214 - 17, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Plate Girder Span, Bridge T105.6 - Willow Creek, Madras, Oregon, Line Segment 053, Milepost 105.57, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Pit Requirements, Scale, Albany, Oregon, Line Segment 442. Sheet 6055931, undated.