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Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet Z - 7 - 22 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet Z - 7 - 22 - 6, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, south of Dixon, Oregon, Line Segment 053, Milepost 74.65. Sheet Z - 7 - 22 - 7, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 9, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 10, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 7, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 6, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T125.7 - Crooked River, south of Opal City, Oregon, Line Segment 053, Milepost 125.71. Sheet Z - 7 - 25 - 8, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 6 - 11 - 8, undated.