Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E83.2 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 83.21. Sheet SS - 442, 1950.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E81.4 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 81.41. Sheet SS - 639, 1957.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E80.1 - Underpass, south of Orville, Oregon, Line Segment 442, Milepost 80.09. Sheet SS - 447, 1950.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet SS - 450, 1951.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E76.6 - Crossing, south of Minto, Oregon, Line Segment 442, Milepost 76.57. Sheet SS - 445, 1950.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E71.6 - Mill Creek, south of Salem, Oregon, Line Segment 442, Milepost 71.26. Sheet WX - 190, 1950.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E40.3 - Underpass, Oregon, Line Segment 442, Milepost 40.3. Sheet WW - 113, 1952.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E40.3 - Underpass, Oregon, Line Segment 442, Milepost 40.3. Sheet WW - 112, 1952.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E35.3 - Tualatin River, south of Tigard, Oregon, Line Segment 442, Milepost 35.21. Sheet WW - 118, 1954.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E35.3 - Tualatin River, south of Tigard, Oregon, Line Segment 442, Milepost 35.21. Sheet SS - 432, 1941.