Spokane, Portland and Seattle Railway Engineering Drawing: Steel Ties, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Ties, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet NO - 291 - A, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Ties Rail Lock, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet AFE - S34 - 69, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Tie Plan, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet NO - 272, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Tie Plan, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet NO - 273, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Shims, Bridge T39.7 - Oak Canyon, Oakbrook, Oregon, Line Segment 053, Milepost 39.70, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Shims, Bridge E20.1 - Highway 26, south of Bowers Junction, Oregon, Line Segment 442, Milepost 22.09. Sheet SS - 449, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Shims, Bridge 58.8 - Wind River, east of Stevenson, Washington, Line Segment 047, Milepost 58.74. Sheet SS - 617, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Shims, Bridge 24.8 - Washougal River (West End), Camas, Washington, Line Segment 047, Milepost 24.75. Sheet SS - 616, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Steel Shims, Bridge 11.3 - Underpass, Vancouver, Washington, Line Segment 047, Milepost 11.34. Sheet SS - 614, undated.