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I-84 Bridge over Dingle Ridge Road Replacement using Superstructure Slide-In Technology

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Applied Research Associates, Inc.
  • Contributors:
  • Corporate Contributors:
    United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
  • Subject/TRT Terms:
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States;New York
  • Edition:
    Final Report
  • Contracting Officer:
    Julie Zirlin;Ewa Flom
  • Corporate Publisher:
    United States. Federal Highway Administration
  • Abstract:
    As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the New York State Department of Transportation (NYSDOT) was awarded a $2.1 million grant to demonstrate the use of proven, innovative technologies for accelerated bridge removal and replacement. This report documents accelerated bridge construction techniques using prefabricated superstructure slide-in technology to replace two Interstate 84 bridges over Dingle Ridge Road in Putnam County. Each new superstructure was installed during a 20-hour time period over a weekend. This report includes project/site challenges, construction details, deployment of the lateral slide-in technology, and NYSDOT’s public outreach efforts to minimize impact to traffic. Under conventional construction methods, the project would have taken 2 years to build and would have required the construction of a temporary roadway and bridge to channel traffic during construction. This would have increased delays during peak hours of travel. Using precast elements and lateral slide-in technology, the project was built in 1 year, and the impact to travelers in each direction on I-84 was reduced to a detour for 20 hours. Furthermore, by reducing traffic impacts substantially, it is estimated that NYSDOT avoided six crashes, one of which could have potentially resulted in injury/fatality. The innovative technology resulted in savings of $0.9 million in construction costs and $1.37 million in user delay costs. Together, the savings represent 22 percent of the $10.2 million construction cost of the project. Because of the success of this project, the NYSDOT plans to use the lateral slide-in technology on future projects where this innovative technology is feasible and appropriate for conditions.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:49bc912df5d4c3ce2637a8c012eaaae9879bc0b8cda37b4a21a3f15fc475298510915e1d69c4a86b9c46e7d37ad25036c3fe228dd42e7346d74271f0b54ef078
  • Download URL:
  • File Type:
    Filetype[PDF - 6.31 MB ]
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