Abstract:
On Interstate 5 (I-5) northbound between Burlington and Bellingham, Washington, old concrete panels beneath the asphalt were causing severe transverse cracking along a stretch of 11.6 miles. Looking for a long-lived, cost-effective solution, the Washington State Department of Transportation agreed to pilot the procedures in the guide produced by the Transportation Research Board’s second Strategic Highway Research Program (SHRP-2), Using the Existing Pavement In-Place and Achieving Long Life, during the I-5 Joe Leary Slough to Nulle Road Vicinity project. A web-based decision support tool, the guide contains procedures for identifying when pavements can be used in place, as well as approaches to incorporate the original pavement material into the structure. This article describes this pilot project.
