Northern Pacific Engineering Drawing: Bill of Materials, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Detail Shoes/Bolster, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Detail Stringer/Bracket, etc., Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Extension Masonry Double Truss, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Falsework, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Masonry Plan, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, 1910.

Northern Pacific Engineering Drawing: Shop Plan - Bottom Lateral, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.

Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 47 - Skookumchuck River, south of Bucoda, Washington, Line Segment 052, Milepost 47.4. Sheet 778 - 1, undated.