R.C. Mahon Co.

of Detroit, Michigan
Cut River Bridge (Mackinac County, Michigan)
Built 1947
Deck truss bridge over Cut River on US 2
Open to traffic

UP - IL47 Overpass (McHenry County, Illinois)
Built 1936
Pony/through plate girder bridge over IL 47 (S Eastwood Dr) on UPRR (Former C&NW) in Woodstock
Open to traffic