North Dakota Demonstration Project: Whitetopping on U.S. 2 West of Rugby
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2010-09-20
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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 North Dakota Department of Transportation was awarded a $1 million grant to demonstrate the use of proven, innovative thin concrete overlay known as whitetopping and full lane closure for resurfacing U.S. Highway 2, west of the town of Rugby. This report details the use of whitetopping to rehabilitate this major interregional highway. Using full lane closure during construction greatly reduced the duration of traffic interruption compared with traditional methods. Full lane closure on a major highway has been used on reconstruction projects in North Dakota but is typically not used for overlay projects. As a result, an estimated 19 days and $32,927 in road user costs were saved by implementing a full lane closure on this project. A life cycle cost analysis shows that the costs of whitetopping are within 1.8 percent of an asphalt alternative for both agency and road user costs during construction and future maintenance and rehabilitation. The success of this project will encourage the use of whitetopping and full lane closure techniques as viable alternatives for future rehabilitation projects.
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