Great Northern Engineering Drawing: Masonry Plan, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 4, undated.

Great Northern Engineering Drawing: Masonry Plan, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 3, undated.

Great Northern Engineering Drawing: Present Steel Bridge, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0, undated.

Great Northern Engineering Drawing: Reference Points and Elevation, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 6 - 908 - 1, undated.

Great Northern Engineering Drawing: Repairs Fender Nose Curb, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 6B, undated.

Great Northern Engineering Drawing: Repairs Lower Chord 200 Foot, Bridge 36 - Skagit River, north of Mount Vernon, Washington, Line Segment 050, Milepost 70.0. Sheet 200 - 1714 - 8, undated.