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Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Portal, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 27, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Portal, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 35, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Hanger, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 15 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Floor Beams, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 17 - 13, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Floor Beams, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 15 - 21, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Internal Diaphragm, 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 - Internal Diaphragm, 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 - Internal Diaphragm, 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 - Internal Diaphragm, 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 - Intermediate Port, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 23 - 23, undated.