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Utah Demonstration Project: Geosynthetic Reinforced Soil Integrated Bridge System on I-84 near Salt Lake City

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File Language:
English


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  • 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;Utah
  • 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 (FHWA) under the Highways for LIFE program, the Utah Department of Transportation (UDOT) was awarded a $1 million grant to demonstrate the use of proven, innovative accelerated bridge construction technologies to deliver this $5 million project in substantially less time than conventional construction. The project involved replacing twin bridges located on the westbound and eastbound routes of I-84 over Echo Frontage Road in Summit County. The structure to be replaced was constructed in 1971 and carried a designation of D-783 in UDOT’s bridge management system. The project limits extended approximately between milepost118 and milepost120. The innovative construction techniques adopted were as follows: • Use of the geosynthetic reinforced soil-integrated bridge system (GRS-IBS) method of design and construction. • Use of prefabricated bridge elements and systems (PBES). • Use of a lateral bridge slide. This was the first GRS-IBS project in Utah and also the first GRS-IBS project on an interstate in the U.S. It was also the first GRS-IBS project in the U.S. to incorporate a lateral bridge slide. On this project, UDOT used a price + time or price + time + lane rental bidding process. To estimate the cost savings for the GRS-IBS method, the total costs were computed for both the as-built and baseline (castin-place) scenarios by adding the agency costs and user costs (delay + safety costs). The results indicated around 7 percent cost savings during the as-built scenario compared to the baseline because of significantly reduced user costs.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:ca5ed8a2226b11480762e558a258d94e920c79283b1df25e20983d22baaa28926a76898fd3c7f4f0e6986cfcdd9e1166bfbe1245b4a1f209129ca0d6d3a90c9c
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  • File Type:
    Filetype[PDF - 13.03 MB ]
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