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: Steel Details, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet WX - 195, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Skew Bents, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet SS - 438, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Plan, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet WX - 195A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Reinforcement Detail/Schedule, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet WX - 196, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Layout of Trestle Bridge, Bridge E78.8 - Underpass, south of Minto, Oregon, Line Segment 442, Milepost 78.76. Sheet Y - 5 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Layout of Trestle Bridge, Bridge E76.6 - Crossing, south of Minto, Oregon, Line Segment 442, Milepost 76.57. Sheet Y - 5 - 3, undated.