Rebuilding much of Arizona Route 67 was accomplished using Reemay's Typar 3401 nonwoven, spun-bonded polypropylene. Because of the width of the road, 16-ft.-wide strips were laid on either side and a 12-ft.-wide strip was laid down the center, overlapping each outside piece by at least 1 ft. On top of the geotextile, 7.5 in. of grade A gravel were placed as a subbase, then 4 in. of grade E gravel as the aggregate base. This was followed by a prime coat of grade MC-70, type I asphalt, above which was added a 3-in. hot asphalt concrete base course layer of grade E asphalt. Finally, a 1-in. layer of hot, class B, grade J asphalt concrete pavement was added. Traffic control during construction was a primary concern. As the road is only open half of the year because of heavy snows, the project had to be completed during the summer season, the peak time for tourist travel on Route 67.

Media Info

  • Features: Photos;
  • Pagination: p. 49
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00485323
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 1989 12:00AM