Sag Bridge

(Illinois)

Sag Bridge, Illinois is an Unincorporated community in Lemont Township in southwestern Cook County, Illinois, United States. Sag Bridge is an important waterway junction between the Calumet Sag Channel and the Chicago Sanitary and Ship Canal. It is also the junction of IL 83 and IL 171 which meet at Sag Bridge to cross the Calumet Sag Channel together on the eponymous bridge. The community was named for a predecessor of the present bridge. It is within the village limits and postal delivery zone of Lemont, Illinois.