Great Northern Engineering Drawing: Deck Plan, Bridge 455, east of Snohomish, Washington, Line Segment 037, Milepost 1775.0. Sheet 201 - 4135 - 55, 1966.

Great Northern Engineering Drawing: Deck Plan, Bridge 455, east of Snohomish, Washington, Line Segment 037, Milepost 1775.0. Sheet 201 - 4135 - 56, 1970.

Great Northern Engineering Drawing: Deck Plan, Bridge 455, east of Snohomish, Washington, Line Segment 037, Milepost 1775.0. Sheet 277 - 1447 - 131, undated.

Great Northern Engineering Drawing: Deck Plan, Bridge 455, east of Snohomish, Washington, Line Segment 037, Milepost 1775.0. Sheet 277 - 1447 - 126, undated.

Great Northern Engineering Drawing: Deck Plan, Bridge 455, east of Snohomish, Washington, Line Segment 037, Milepost 1775.0. Sheet 277 - 1447 - 126, undated.

Great Northern Engineering Drawing: Deck Plan, Bridge 458.1, west of Snohomish, Washington, Line Segment 037, Milepost 1778.0. Sheet 292 - 4701 - 7, 1952.

Great Northern Engineering Drawing: Deck Plan, Bridge 459.5, west of Snohomish, Washington, Line Segment 037, Milepost 1778.5. Sheet 275 - 4251 - 3, 1944.

Great Northern Engineering Drawing: Deck Plan, Bridge 459.5, west of Snohomish, Washington, Line Segment 037, Milepost 1778.5. Sheet 275 - 4251 - 4, 1952.

Great Northern Engineering Drawing: Deck Plan, Bridge 461, west of Snohomish, Washington, Line Segment 037, Milepost 1779.0. Sheet 262 - 4042 - 7, 1951.

Great Northern Engineering Drawing: Deck Plan, Bridge 462, west of Snohomish, Washington, Line Segment 037, Milepost 1779.2. Sheet 221 - 4710 - 5, 1948.