Great Northern Engineering Drawing: Lower Lateral System, Bridge 386 - Nason Creek, Berne, Washington, Line Segment 037, Milepost 1700.3. Sheet 253 - 4059 - 9, 1929.

Great Northern Engineering Drawing: Machinery - Gear Shift, Bridge 10 - Snohomish River, north of Delta, Washington, Line Segment 050, Milepost 37.1. Sheet 197 - 2409 - 162, undated.

Great Northern Engineering Drawing: Machinery and Operating House, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 47, undated.

Great Northern Engineering Drawing: Machinery and Steel Design, Bridge 70 - Serpentine River, north of Crescent Beach, British Columbia, Line Segment 056, Milepost 129.3. Sheet 202 - 1961 - 50, undated.

Great Northern Engineering Drawing: Machinery and Steel Design, Bridge 70 - Serpentine River, north of Crescent Beach, British Columbia, Line Segment 056, Milepost 129.3. Sheet 202 - 1961 - 51, undated.

Great Northern Engineering Drawing: Machinery and Steel Design, Bridge 70 - Serpentine River, north of Crescent Beach, British Columbia, Line Segment 056, Milepost 129.3. Sheet 202 - 1961 - 49, undated.

Great Northern Engineering Drawing: Machinery Assembly, Bridge 69 - Nicomekl River, north of Crescent Beach, British Columbia, Line Segment 056, Milepost 127.7. Sheet 202 - 1960 - 70, undated.

Great Northern Engineering Drawing: Machinery Below Deck, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 49, undated.

Great Northern Engineering Drawing: Machinery Design 260 Foot, Bridge 10 - Snohomish River, north of Delta, Washington, Line Segment 050, Milepost 37.1. Sheet 197 - 2409 - 76, undated.

Great Northern Engineering Drawing: Machinery Design 260 Foot, Bridge 10 - Snohomish River, north of Delta, Washington, Line Segment 050, Milepost 37.1. Sheet 197 - 2409 - 77, undated.