

Project Scope
The construction cost of the corridor project was $1.2 billion and involved up to 25 separate construction contracts.
The work involved in this corridor included:
- Reconstruction of the mainline roadway
- Addition of a fourth lane
- Reconstruction or rehabilitation of 10 major bridge structures installation of a smart lane concept
Coordination work and public outreach to impacted communities, including the establishment of emergency response procedures, was a key element of the work.
Impacted communities and agencies included:
- Kane County
- Cook County
- Illinois Department of Transportation
- Elgin
- South Elgin
- East and West Dundee
- Hoffman Estates
- Barrington Hills
- South Barrington
- Rolling Meadows
- Schaumburg

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