Great Northern Engineering Drawing: Renewal Span 1 - Reinforcement 4, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 15, undated.

Great Northern Engineering Drawing: Replacement Span 4, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 17, 1925.

Great Northern Engineering Drawing: Shop Plan - Anchor Bolts, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 34, undated.

Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 46, undated.

Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 47, undated.

Great Northern Engineering Drawing: Shop Plan - Bridge Number 17, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 35, undated.

Great Northern Engineering Drawing: Shop Plan - Bridge Number 17, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 36, undated.

Great Northern Engineering Drawing: Shop Plan - Bridge Number 17, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 38, undated.

Great Northern Engineering Drawing: Shop Plan - Bridge Number 17, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 40, undated.