| Title | I-84 Bridge over Dingle Ridge Road Replacement using Superstructure Slide-In Technology |
|---|---|
| Record ID | 78934 |
| Personal Name Creator |
Bhajandas, Amar; Mallela, Jagannath; Sadasivam, Suri |
| Personal Name Contributor |
Zirlin, Julie; Flom, Ewa |
| Corporate Creator | Applied Research Associates, Inc. |
| Corporate Contributor |
United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure |
| Publisher | United States. Federal Highway Administration |
| Publication Date | 20141001 |
| Language | English |
| 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. |
| Rosap ID | dot:54211 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/54211 |
| TRT Terms | Demonstration projects; Bridge construction; Technological innovations; Economic analysis; Prefabricated structures; Lane closure |
| Geographical Coverage |
United States; New York |
| TRIS Online Accession No |
1578188 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/78000/78900/78934/ny_abc_slideintechnology_i84.pdf |
| Format | |
| Database | NTL Digital Repository |