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Spokane, Portland and Seattle Railway Engineering Drawing: Gusset Pl - Up Lateral System, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet Z - 8 - 33, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Gus Plate Lateral System, Bridge 267.6 - Bouvey Canyon, Windust, Washington, Line Segment 047, Milepost 267.6. Sheet Z - 8 - 31, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Guard/Centering Casting, 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: Guard/Centering Casting, 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: Guard Angle Details, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 3 - 26 - 6, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Guard Angle Details, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 8 - 1, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Ground Profile at Bent, Bridge E71.8 - County Road, south of Salem, Oregon, Line Segment 442, Milepost 71.70. Sheet SS - 640A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Grillage Details, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 209, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Grillage Details, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 209, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Grillage Details, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 209, undated.