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.

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.

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 Number 3, Bridge 24.8 - Washougal River (West End), Camas, Washington, Line Segment 047, Milepost 24.75. Sheet AA - 422, undated.