Reconstructing History

The Main Street Bridge in Naperville, Illinois was constructed in 1931 and served as a gateway to the downtown community. This article describes the challenges involved in demolishing and replacing this historic structure. The three-span concrete T-beam bridge was constructed in 1931 and was showing significant deterioration by the 1990s. A detailed structural analysis of the original bridge concluded that none of the structure could be salvaged. The bridge's age, designation as a historic structure, and lack of original engineering documents all presented challenges to demolition. A two-span, post-tensioned concrete bridge was designed as a replacement. Prefabricated arch forms were used to simplify the complicated layout and fabrication of the deck forms. The bridge also faced several environmental issues, including the removal of asbestos-laden asphalt from the bridge deck and the use of a turbidity curtain to reduce the amount of sediment in the water. Attention to aesthetic details and pedestrian amenities make the replacement bridge an attractive substitution for the original bridge.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Illustrations; Photos;
  • Pagination: pp 6-9
  • Serial:
    • Bridges
    • Volume: 11
    • Issue Number: 1
    • Publisher: ZweigWhite

Subject/Index Terms

Filing Info

  • Accession Number: 01095680
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 29 2008 10:15PM