Northern Pacific Engineering Drawing: Shop Plan - Deck Plate Girder (DPG) Skew, Bridge 9.1 - Lk .Wash Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 9.2. Sheet 783 - 17, undated.

Northern Pacific Engineering Drawing: Shop Plan - Details, Bridge 11.1 - Mercer Slough, south of Wilburton, Washington, Line Segment 405, Milepost 11.5. Sheet VF 1264 - 16, undated.

Northern Pacific Engineering Drawing: Shop Plan - Details, Bridge 11.1 - Mercer Slough, south of Wilburton, Washington, Line Segment 405, Milepost 11.5. Sheet VF 1264 - 16, undated.

Northern Pacific Engineering Drawing: Shop Plan - Details, Bridge 11.1 - Mercer Slough, south of Wilburton, Washington, Line Segment 405, Milepost 11.5. Sheet VF 1264 - 16, undated.

Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, south of Wilburton, Washington, Line Segment 405, Milepost 9.9. Sheet 2034 - 1, undated.

Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, south of Wilburton, Washington, Line Segment 405, Milepost 9.9. Sheet 2034 - 1, undated.

Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, south of Wilburton, Washington, Line Segment 405, Milepost 9.9. Sheet 2034 - 1, undated.

Northern Pacific Engineering Drawing: Shop Plan - Diagram, Bridge 11.1 - Mercer Slough, south of Wilburton, Washington, Line Segment 405, Milepost 11.5. Sheet VF 1264 - 16, undated.

Northern Pacific Engineering Drawing: Shop Plan - Drain Detail, Bridge 11.72 - Lake Hills Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 11.7. Sheet 292 - 6678 - 32, undated.

Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 11.1 - Mercer Slough, south of Wilburton, Washington, Line Segment 405, Milepost 11.5. Sheet VF 1264 - 16, undated.