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Spokane, Portland and Seattle Railway Engineering Drawing: Stringer Laterals, Bridge 72.8 - White Salmon River, east of Hood, Washington, Line Segment 047, Milepost 72.80. Sheet RR - 385, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stringer Laterals and Gusset Plate, Bridge 24.8 - Washougal River (West End), Camas, Washington, Line Segment 047, Milepost 24.75. Sheet SS - 606, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stringer Lateral and Gusset Plate, Bridge 72.8 - White Salmon River, east of Hood, Washington, Line Segment 047, Milepost 72.80. Sheet SS - 609, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stringer Frame Details, Bridge A86.6 - Overpass, Knappa, Oregon, Line Segment 440, Milepost 84.71. Sheet TV - 426, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress/Section Flange, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge E98.6 - Calapooia River, south of Albany, Oregon, Line Segment 442, Milepost 99.87. Sheet WX - 115, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80. Sheet NO - 223, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 2 - 16 - 1, undated.