Independent Bridge Co.

Cass Street Bridge (Will County, Illinois)
Built 1932
Rolling-lift bascule bridge over Des Plaines River on Westbound US 30 Lincoln Highway in Joliet
Open to traffic

Mahoning Avenue Viaduct (Lawrence County, Pennsylvania)
Built 1924
Through truss bridge over Shenango River on Mahoning Avenue in New Castle
Open to traffic

Masontown Bridge (Fayette County, Pennsylvania)
Built 1925
Lost through truss bridge over the Monogahela River on PA 21 in Masontown
Replaced by a new bridge in 2013