United States Department of Transportation
i
Utah Demonstration Project: Precast Concrete Pavement System on I-215
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2013-06-01
[PDF-8.41 MB]
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Edition:Final Report
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Abstract:As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the Utah Department of Transportation (UDOT) was awarded a $750,000 grant to demonstrate the use of proven, innovative precast concrete pavement system (PCPS) technology to deliver this project in less time and with less impact on motorists than conventional construction. This report details the PCPS innovations used to replace the existing deteriorated concrete pavement during 7- to 10-hour nighttime lane closures. Traditional construction practices of cast-in-place full-depth repairs would have required closures of 7 to 10 days, greatly impacting traffic during peak hours on this urban belt route. Traditional construction practices would have resulted in delays of 3,608 vehicle-hours with one-lane closure and 122,704 vehicle-hours with two-lane closures per day on Monday through Thursday and 1,255 vehicle-hours with one-lane closure and 106,820 vehicle-hours with two-lane closures on Friday. Using PCPS and nighttime construction reduced vehicle-hours of delay to zero. UDOT learned several valuable lessons on rehabilitation using PCPS. The project was completed with minimal disruption to the traveling public, improved worker and work zone safety, and substantial reduction in construction time that affected traffic. The experience gained on this successful project will help UDOT refine its accelerated pavement construction processes and use them in other situations where traffic impacts are a major concern
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