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Spokane, Portland and Seattle Railway Engineering Drawing: Renew Bridge, Bridge A29.4S, west of Saint Helens, Oregon, Line Segment 440, Milepost 0.40. Sheet WX - 224, 1958.

Spokane, Portland and Seattle Railway Engineering Drawing: Renew Bents, Bridge S - 31.3 - Wylie Creek, Foster, Oregon, Line Segment 457, Milepost 31.29. Sheet WX - 155A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Remodel Houses, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet NO - 414, 1962.

Spokane, Portland and Seattle Railway Engineering Drawing: Remodel House, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet 00 - 414, 1962.

Spokane, Portland and Seattle Railway Engineering Drawing: Relocation, Bridge 182.8 - Underpass, east of Plymouth, Washington, Line Segment 047, Milepost 194.83. Sheet 1 - 0 - 7/29.2A, 1950.

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