Spokane, Portland and Seattle Railway Engineering Drawing: Details of Spans, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet WX - 186, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Foundation Plan, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet WX - 185, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Foundation Plan, Bridge E83.2 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 83.21. Sheet WX - 182, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Layout of Trestle Brace, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet Y - 5 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Location Sketch/Falsework, Bridge E83.6 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 83.56. Sheet WX - 200, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Reinforcement Detail/Schedule, Bridge E83.6 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 83.56. Sheet WX - 198, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Plan, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet WX - 186A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Plan, Bridge E83.6 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 83.56. Sheet WX - 197A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Span Beams, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet WX - 186B, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Steel Details, Bridge E81.4 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 81.41. Sheet WX - 222, undated.