Northern Pacific Engineering Drawing: Proposed Abutment Number 4, Bridge 93.3 - Ostrander Creek, south of Castle Rock, Washington, Line Segment 052, Milepost 93.6. Sheet 1268 - 13, undated.

Northern Pacific Engineering Drawing: Proposed 20 Foot Beam Span, Bridge 94, west of Nimrod, Montana, Line Segment 042, Milepost 94.7. Sheet 696 - 20, undated.

Northern Pacific Engineering Drawing: Project Plan and Elevation, Bridge 3 - Snake River, east of Ainsworth Junction, Washington, Line Segment 450, Milepost 3.05. Sheet 359 - 6739 - 2, undated.

Northern Pacific Engineering Drawing: Project Plan and Elevation, Bridge 3 - Snake River, east of Ainsworth Junction, Washington, Line Segment 450, Milepost 3.05. Sheet 359 - 6738 - 2, 1968.

Northern Pacific Engineering Drawing: Profile/Shim Details, Bridge 51 (78) - Yellowstone River, west of Craver, Montana, Line Segment 041, Milepost 51.5. Sheet 441 - 13, undated.

Northern Pacific Engineering Drawing: Profile, Bridge 38 - Snohomish River, south of Snohomish, Washington, Line Segment 403, Milepost 38.0. Sheet 778 - 2, undated.

Northern Pacific Engineering Drawing: Profile, Bridge 11.72 - Lake Hills Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 11.7. Sheet 292 - 6678 - 18, undated.

Northern Pacific Engineering Drawing: Profile of Sprague, Bridge 71 - Division Street, Spokane, Washington, Line Segment 045, Milepost 71.27. Sheet 1054 - 6, undated.