Spokane, Portland and Seattle Railway Engineering Drawing: Piers I/IV, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet RR - 534B, undated.

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

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

Spokane, Portland and Seattle Railway Engineering Drawing: Pier III, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet RR - 534D, undated.

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

Spokane, Portland and Seattle Railway Engineering Drawing: Pier II, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet RR - 534C, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Pier and Abutment Plan, Bridge T39.7 - Oak Canyon, Oakbrook, Oregon, Line Segment 053, Milepost 39.70. Sheet NO - 379, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: north Abutment, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet RR - 534A, 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.

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.