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Spokane, Portland and Seattle Railway Engineering Drawing: Plate Trainmen's Walk, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet 47 - 2658 - 1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate of Foundations, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate of Foundations, Bridge A62.7 - Clatskanie River, west of Clatskanie, Oregon, Line Segment 440, Milepost 62.67, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate Girder Bearings, Bridge 66.4 - Little White Salmon River, east of Cooks, Washington, Line Segment 047, Milepost 66.32. Sheet AA412, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate Girder Bearing, Bridge 58.8 - Wind River, east of Stevenson, Washington, Line Segment 047, Milepost 58.74. Sheet AA - 412, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate Double Track, Bridge Standard Plan. Sheet NN - 172, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate and Detail Rod Support, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Plate and Detail Rod Support, Bridge A62.7 - Clatskanie River, west of Clatskanie, Oregon, Line Segment 440, Milepost 62.67, undated.