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The Mile-Long Bridge is the colloquial name for a bridge in the northeastern part of the U.S. state of
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Roc ...
. The bridge carries
Interstate 294 Interstate 294 (I-294) is a tolled auxiliary Interstate Highway in northeastern Illinois. It forms the southern portion of the Tri-State Tollway in Illinois. I-294 runs from South Holland at I-80/ I-94 and Illinois Route 394 (IL 394) to ...
(I-294) over the
Des Plaines River The Des Plaines River () is a river that flows southward for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed May 13, 2011 through southern Wisconsin and northern Illinois''American Her ...
, the
Chicago Ship and Sanitary Canal The Chicago Sanitary and Ship Canal, historically known as the Chicago Drainage Canal, is a canal system that connects the Chicago River to the Des Plaines River. It reverses the direction of the Main Stem and the South Branch of the Chicago ...
, two major railroad lines, and an intermodal facility. A series of 51 piers carries I-294 over the broad Des Plaines River valley. In spite of its name, the bridge falls short of one full mile in length.


History


Reconstruction (2019–2023)

As part of the Central Tri-State Tollway Project, construction of a new Mile-Long Bridge structure, together with demolition of the original 1958 structure, proceeded in phases commencing in 2019. In the first completed phase of the project, a new northbound bridge structure opened to traffic in November 2020. Demolition of the old northbound structure commenced in 2021, followed by the construction of a new southbound structure. The completed southbound structure opened to traffic in October 2022. Removal of the old southbound structure is expected to be complete in 2023.


References

Road bridges in Illinois Bridges on the Interstate Highway System Interstate 294 Bridges completed in 1958 Toll bridges in Illinois Steel bridges in the United States Girder bridges in the United States Transportation buildings and structures in Cook County, Illinois Transportation buildings and structures in DuPage County, Illinois {{Illinois-bridge-struct-stub