Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plans, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet Z - 3 - 26 - 9, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plans, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 26 - 3, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plans, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 26 - 2, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plans, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet Z - 3 - 26 - 5, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 304.4 - Cow Creek, north of Hooper, Washington, Line Segment 047, Milepost 304.4. Sheet 0 - 1 - 5, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet 0 - 1 - 1, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 270.0 - Box Canyon, north of Farrington, Washington, Line Segment 047, Milepost 270.0. Sheet 0 - 1 - 1, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 269.1 - Wilson Canyon, Farrington, Washington, Line Segment 047, Milepost 269.1. Sheet N - 4 - 11, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 267.6 - Bouvey Canyon, Windust, Washington, Line Segment 047, Milepost 267.6. Sheet N - 4 - 10, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Masonry Plan, Bridge 265.8 - Burr Canyon, north of Burr, Washington, Line Segment 047, Milepost 265.8. Sheet N - 4 - 9, undated.