Spokane, Portland and Seattle Railway Engineering Drawing: Foundation of Pier II, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet 0 - 3 - 19, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Detail Truss, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet Z - 6 - 13 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Diagram, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet RR - 519, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T39.7 - Oak Canyon, Oakbrook, Oregon, Line Segment 053, Milepost 39.70. Sheet NO - 378, undated. Note: Steel spans

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet RR - 508, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet RR - 509, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet Z - 6 - 13 - 9, undated. Note: Steel spans and AFE truss

Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet Z - 6 - 13 - 1, undated. Note: Steel spans and AFE trusses

Spokane, Portland and Seattle Railway Engineering Drawing: north Abutment, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet Z - 6 - 13 - 15, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: north Abutment, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet RR - 533A, undated.