Ultrathin Whitetopping in California and Nevada: A 13-Year Performance Perspective of Performance Based on Joint Spacing, Thickness, and Traffic Loading

Since the first California ultrathin whitetopping (UTW) was constructed at a mortuary, UTW has proven not to be a dead concept but a steadily growing process providing low-maintenance pavements for streets, bus pads, intersections, and parking lots. A Pavement Condition Index (PCI) survey of 18 projects using the Micropaver protocol yielded ratings of excellent to very good for 2- to 13-year old pavements located from coastal southern California to Reno, Nevada. A constant in considering UTW for pavement rehabilitation has been the cost of saw-cutting joints at the close spacings recommended by the American Concrete Pavement Association (ACPA). Based on the finding that 90% of projects constructed with joint spacings larger than those recommended by ACPA have PCIs > 85 (excellent), UTW subjected to car-only traffic can have larger spacings.

  • Corporate Authors:

    American Concrete Pavement Association

    5420 Old Orchard Road, Suite A100
    Skokie, IL  United States  60077

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Colorado Department of Transportation

    4201 E Arkansas Avenue
    Denver, CO  United States  80222
  • Authors:
    • Akers, David J
    • Warren, Rich
  • Conference:
  • Publication Date: 2005-4


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 59-70
  • Monograph Title: Proceedings of the International Conference on Best Practices for Ultrathin and Thin Whitetoppings, Denver, Colorado, April 12-15, 2005

Subject/Index Terms

Filing Info

  • Accession Number: 01002316
  • Record Type: Publication
  • Created Date: Jul 22 2005 4:34PM