Northern Pacific Engineering Drawing: Pile Abutment Through Plate Girder, Bridge 41 - Porter Creek, west of Oakville, Washington, Line Segment 402, Milepost 41.4. Sheet 446 - 32, 1907. Note: Steel span

Northern Pacific Engineering Drawing: Piers/Reinforcement Bar, Bridge 14 - Chambers Creek, south of Titlow, Washington, Line Segment 052, Milepost 14.2. Sheet 2011 - 1, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 90 - Hell Gate River, west of Nimrod, Montana, Line Segment 042, Milepost 90.6. Sheet 775 - 19, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 79 (12) - Big Boulder River, west of Greycliff, Montana, Line Segment 041, Milepost 79.3. Sheet 441 - 14, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 79 (112) - Big Boulder River, west of Greycliff, Montana, Line Segment 041, Milepost 79.3. Sheet 441 - 14, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 51 - Highway, west of Childs, Montana, Line Segment 044, Milepost 52.0. Sheet 1060 - 45, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 43 - 6th Street Tenino, Tenino, Washington, Line Segment 052, Milepost 43.1. Sheet 1065 - 13, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 210 - Clark Fork River, west of Donlan, Montana, Line Segment 042, Milepost 210.5. Sheet 775 - 8, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 206 (159) - Missouri River, west of Townsend, Montana, Line Segment 041, Milepost 206.3. Sheet 441 - 2, undated.

Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 164 - Gallatin River, west of Logan, Montana, Line Segment 041, Milepost 164.9. Sheet 441 - 1, undated.