The Full Depth Reclamation Process in the Urban Context, City of Lethbridge, Alberta

In 2000, the City of Lethbridge initiated planning and design for the upgrading of Mayor Magrath Drive from a four-lane to a six-lane divided, urban cross-section roadway. Consideration of several pavement reconstruction alternatives led to the selection of a Full Depth Reclamation (FDR) construction strategy for the project. The FDR strategy resulted in significant capital cost savings, in the order of 28 percent compared to conventional reconstruction, and allowed construction to occur on a key transportation corridor within the City of Lethbridge without major disruption to traffic flow and business access. The reduction in construction duration and the environmentally responsible reuse of a non-renewable resource were added benefits. Performance monitoring has been initiated and indicates that some strength gain of the stabilized FDR material can be expected subsequent to construction. Longer term monitoring is planned to identify the ultimate structural adequacy of the section, as well as, other performance attributes. This paper describes the process whereby the FDR alternative was selected and the steps taken to address the relative inexperience with this type of construction in western Canada. Design and construction issues, relative economics of the FDR strategy compared to conventional reconstruction alternatives, and initial performance monitoring are also discussed.

Language

  • English

Media Info

  • Media Type: Print
  • Pagination: pp. 333-354.
  • Monograph Title: Proceedings of the Forty-Eighth Annual Conference of the Canadian Technical Asphalt Association (CTAA): Halifax, Nova Scotia, November 2003

Subject/Index Terms

Filing Info

  • Accession Number: 01604993
  • Record Type: Publication
  • Source Agency: Transportation Association of Canada (TAC)
  • Files: ITRD, TAC
  • Created Date: Jul 26 2016 5:02PM