- 1903: 22 miles of double track completed from Lake Bluff, Illinois to Mayfair, Illinois by the Chicago Northern Railway
- 1903: Chicago Northern acquired by the Chicago & North Western Railway
- 1905: 17 miles of double track completed from Chicago Northern Junction to Wisconsin/Illinois State Line by the Chicago and State Line Railway
- 1905: C&SL acquired by the Milwaukee & State Line Railway
- 1906: 34 miles of double track completed from Wisconsin/Illinois State Line to St. Francis, Wisconsin by the Milwaukee and State Line Railway
- 1909: M&SL acquired by the Chicago & North Western Railway
- 1910: 11 miles of double track completed from Proviso to Deval, Illinois by the Des Plaines Valley Railway
- 1911: 10 miles of double track completed from Deval to Valley, Illinois by the Des Plaines Valley Railway
- 1913: Des Plaines Valley Railway acquired by the Chicago & North Western Railway
- 1954: Relocation due to O'Hare Airport
- 1960: Second track mostly removed between Gurnee and St. Francis
- 1995: Chicago & North Western purchased by Union Pacific Railroad
- 1995-Present: Union Pacific operates the Milwaukee Subdivision from Proviso to St. Francis Avenue, continuing north towards Butler
02/25/23
Located in Northbrook, this massive through truss bridge crosses the former Milwaukee Road, now Canadian Pacific, behind Costco.
Built in 1911, this bridge features a large riveted Quadrangular Through Truss span, set onto concrete substructures. In addition, the bridge was built at a skew and a ballasted deck.
The concrete arch design is common for new constructions between 1910 and 1913 for the C&NW. During this time period, many structures were built with this same design for all new routes.
Overall, the bridge appears to be in fair condition, with some significant deterioration. primarily cracking of the abutments.
The author has ranked the bridge as being moderately significant, due to the truss design.
The photo above is an overview.