Spokane, Portland and Seattle Railway Engineering Drawing: Piers Number 1 and 2, Bridge 161.8 - Alder Creek, east of McCredie, Washington, Line Segment 047, Milepost 161.79. Sheet JDR - 1 - 4 - 11/21, undated.
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: Piers and Abutments, Bridge 6.7 - Fessenden Street, north of Willbridge, Oregon, Line Segment 047, Milepost 6.70. Sheet HH - 502, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Piers and Abutments, Bridge 120.3, east of Cliffs, Washington, Line Segment 047, Milepost 120.29. Sheet JDR - 1 - 4 - 11/65, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Piers and Abutment, Bridge T88.6 - Trout Creek, south of South Junction, Oregon, Line Segment 053, Milepost 88.62. Sheet X - 24 - 4, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Piers 3/4, Bridge 0.1 - north Portland Road, North Portland Junction, Oregon, Line Segment 047, Milepost 0.07. Sheet 256 - 6778 - 6, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Piers 2/3/4, Bridge 0.1 - north Portland Road, North Portland Junction, Oregon, Line Segment 047, Milepost 0.07. Sheet 256 - 6778 - 5, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Pier Tops, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 209, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Pier Tops, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 209, undated.