Northern Pacific Engineering Drawing: Replace west Approach, Bridge 26 - Thompson River, west of Eddy, Montana, Line Segment 044, Milepost 26.1. Sheet 1067 - 1, undated.

Northern Pacific Engineering Drawing: Replace Trusses, Bridge 206 (259) - Missouri River, west of Townsend, Montana, Line Segment 041, Milepost 206.3. Sheet 1066 - 2, undated.

Northern Pacific Engineering Drawing: Replace Top Lateral System, Bridge 70 - Olequa Creek, south of Napavine, Washington, Line Segment 052, Milepost 70.5. Sheet 429 - 4, undated.

Northern Pacific Engineering Drawing: Replace Top Lateral System, Bridge 197 - Saint Regis River, Saint Regis, Montana, Line Segment 042, Milepost 197.4. Sheet 775 - 9, undated.

Northern Pacific Engineering Drawing: Replace Top Lateral Span, Bridge 113 - Big Blackfoot River, west of Bonner, Montana, Line Segment 042, Milepost 113.9. Sheet 775 - 25, undated.

Northern Pacific Engineering Drawing: Replace Top Lateral Brace, Bridge 197 - Saint Regis River, Saint Regis, Montana, Line Segment 042, Milepost 197.4, undated.

Northern Pacific Engineering Drawing: Replace Top Gusset Plate, Bridge 26 - Power Tail Race, south of Auburn, Washington, Line Segment 051, Milepost 26.2. Sheet 777 - 7, undated.

Northern Pacific Engineering Drawing: Replace Top Gusset Plate, Bridge 141 - Clark Fork River, west of Frenchtown, Montana, Line Segment 042, Milepost 141.9. Sheet 441 - 27, undated.

Northern Pacific Engineering Drawing: Replace Top Cover Plate, Bridge 197 - Saint Regis River, Saint Regis, Montana, Line Segment 042, Milepost 197.4. Sheet 775 - 9, undated.