I-84 Bridge Over Dingle Ridge Road Replacement Using Superstructure Slide-In Technology

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.

• Record URL:
  http://www.fhwa.dot.gov/hfl/summary/pdf_2/NY%20I-84%20Final%20Report_10092014.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/54211
• Supplemental Notes:
  • Title on cover: New York Demonstration Project: I-84 Bridge Over Dingle Ridge Road Replacement Using Superstructure Slide-In Technology.
• Corporate Authors:

  Applied Research Associates, Incorporated

  100 Trade Center Drive, Suite 200
  Champaign, IL  United States  61820

  Federal Highway Administration

  Office of Infrastructure
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bhajandas, Amar
  • Mallela, Jagannath
  • Sadasivam, Suri
• Publication Date: 2014-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 81p

Subject/Index Terms

• TRT Terms: Bridge construction; Bridge superstructures; Cost effectiveness; Costs; Demonstration projects; Prefabricated bridges; Technological innovations
• Identifier Terms: Highways for LIFE
• Uncontrolled Terms: Bridge replacement; Slide-in technology
• Geographic Terms: Putnam County (New York)
• Subject Areas: Bridges and other structures; Construction; Highways; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01578188
• Record Type: Publication
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Oct 15 2015 12:40PM