Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Strut, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 17 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, etc., Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet Z - 7 - 22 - 12, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 19, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 20, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 22, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 17, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 18, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 21, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 14, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 11 - 16, undated.