Great Northern Engineering Drawing: Details Reinforcement Bars, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 14, 1921.

Great Northern Engineering Drawing: Falsework Details, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 33, undated.

Great Northern Engineering Drawing: Layout Renewal Span 2 and 3, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 15A, undated.

Great Northern Engineering Drawing: Masonry Plan Piers 1 and 4, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 26, undated.

Great Northern Engineering Drawing: Masonry Plan Piers 2 and 3, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 27, undated.

Great Northern Engineering Drawing: north Approach Repairs, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 22, undated.

Great Northern Engineering Drawing: north Approach Repairs, Bridge 17 - Stillaguamish River, north of Silvana, Washington, Line Segment 050, Milepost 50.5. Sheet 197 - 1322 - 23, undated.