Northern Pacific Engineering Drawing: Miscellaneous Details, Bridge 23 - Ellingson Road, south of Auburn, Washington, Line Segment 051, Milepost 23.9. Sheet 677 - 30, undated.

Northern Pacific Engineering Drawing: Pile Driving Records, Bridge 27 - Salmon Creek, south of Auburn, Washington, Line Segment 051, Milepost 27.6. Sheet 390 - 8681 - 6, undated.

Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 27 - Salmon Creek, south of Auburn, Washington, Line Segment 051, Milepost 27.6. Sheet 390 - 8681 - 3, undated.

Northern Pacific Engineering Drawing: Replace Gusset Plate, Bridge 24 - Stuck River, south of Auburn, Washington, Line Segment 051, Milepost 24.3. Sheet 433 - 33, undated.

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

Northern Pacific Engineering Drawing: Shoofly Details, Bridge 23 - Ellingson Road, south of Auburn, Washington, Line Segment 051, Milepost 23.9. Sheet 677 - 30, undated.