Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bolt/Ring, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet 231 - 7065 - 16, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bolsters, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 7 - 22, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bolster Roller, Bridge 5.1 - Willamette River, north of Willbridge, Oregon, Line Segment 047, Milepost 5.15. Sheet Z - 1 - 4 - 10, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bolster Framework, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet JK - 221 - 1, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Block Diagram, Scale, Albany, Oregon, Line Segment 442. Sheet 6055835, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill Pins, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet Z - 6 - 15 - 20, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill Pins, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet Z - 6 - 14 - 39, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill Pins, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 9 - 25, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill Pins, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 10 - 23, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge T88.6 - Trout Creek, south of South Junction, Oregon, Line Segment 053, Milepost 88.62. Sheet B9519A, undated.