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    1. Bridges

    Number 6: I-355 Extension Bridge

    Dec. 5, 2006

    This bridge will rise 90 ft above the ground at its highest point. It is the focal point of a project that will reduce congestion in one of the fastest-growing counties in the U.S. The contractor had to work around several endangered species and work within a limited footprint.

    Related To: Roads & Bridges magazine (RB)
    1654804138869 No

    This bridge will rise 90 ft above the ground at its highest point. It is the focal point of a project that will reduce congestion in one of the fastest-growing counties in the U.S. The contractor had to work around several endangered species and work within a limited footprint.

    Location: Lemont, Ill.
    Cost: $124 million
    Length: 1.3 miles
    Type: Precast, post-tensioned concrete bridge
    Designer: American Consulting Engineers, Crawford, Murphy & Tilley, V3 Cos. of Illinois, Bollinger Lach & Assoc., Wight & Co.
    Owner: Illinois Tollway
    Contractor: Walsh Construction Co.