Great Northern Engineering Drawing: 150 Foot Through Howe Truss, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 7, undated.

Great Northern Engineering Drawing: Bridge Number 17 Map, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 6, undated.

Great Northern Engineering Drawing: Deck Plan, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 30, 1947.

Great Northern Engineering Drawing: Design 50 Foot Deck Plate Girder (DPG) Span, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 28, undated.

Great Northern Engineering Drawing: Design of Fixed Beam and Bill of Material, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 29, undated.

Great Northern Engineering Drawing: Detail of Longitudinal Stringers, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322, undated.