Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Machinery Arrangement, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 210, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Laterals, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 20, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Laterals, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 21, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Laterals, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 19, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Chords, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 19 - 6, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Chord, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 8, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Chord, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 4, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lower Chord, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 5, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Vertical, Bridge 267.6 - Bouvey Canyon, Windust, Washington, Line Segment 047, Milepost 267.6. Sheet 777 - 2, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Vertical, Bridge 267.6 - Bouvey Canyon, Windust, Washington, Line Segment 047, Milepost 267.6. Sheet 777 - 2, undated.