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Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Struts, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 3 - 32, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Struts, 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 - Longitudinal Strut, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 32, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Strut, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 31, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Structure, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Girder, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 7 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Girder, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 7 - 2, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Girder, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 7 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Girder, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 7 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Longitudinal Girder, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 7 - 14, undated.