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Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Section, Bridge E43.4 - Willamette River, south of Tualatin, Oregon, Line Segment 442, Milepost 43.24. Sheet 370 - 6592 - 16, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Floor System, Bridge E43.4 - Willamette River, south of Tualatin, Oregon, Line Segment 442, Milepost 43.24. Sheet 370 - 6592 - 19, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Details, Bridge E43.4 - Willamette River, south of Tualatin, Oregon, Line Segment 442, Milepost 43.24. Sheet 370 - 6592 - 17, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Details, Bridge E43.4 - Willamette River, south of Tualatin, Oregon, Line Segment 442, Milepost 43.24. Sheet 370 - 6592 - 18, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Truss Details, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, Line Segment 047, Milepost 291.4. Sheet TV - 289, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Truss and Lateral Details, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 16 - 2, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Trolleys, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99. Sheet V - 4 - 5, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Trolley Breaker Details, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99. Sheet V - 4 - 5, undated.