The contractor is placing portland cement concrete pavement (PCCP) for the Superstition Freeway Extension near Mesa, Arizona, with an average ride index of under 1 in./mile. The new pavement far surpasses the state's smoothness specifications. The Arizona Department of Transportation accepts deviations from smoothness (in cumulative 500ths of an in.) up to 7 in./mile, but pays incentive bonuses of 20 cents for each in. the index is lowered. A dollar per yd is offered for ride indexes which come in at or under 2 in./mile. The contractor has earned in excess of $300,000 for all the mainline, traffic lane PCCP on the 11-mile extension. The contractor used a new CMI SP30 ST Auto Grader and two new, modified SF-500 pavers to achieve the smoothness. Further details of the equipment, construction methods, mix design, and economics of the project are given in this article.

  • Availability:
  • Corporate Authors:

    Cahners Publishing Company

    275 Washington Street
    Newton, MA  United States  02158-1630
  • Authors:
    • Hodson, C
  • Publication Date: 1991-12

Media Info

  • Features: Photos;
  • Pagination: p. 40-41
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00618094
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 31 1991 12:00AM