A project to add two new lanes and complete the expansion of Iowa 141 in Dallas County, Iowa, received the 1998 Sheldon G. Hayes Award for Highest Quality in Asphalt Paving. The contractor placed more than 180,000 tons (163,296 Mg) of hot mix asphalt (HMA) to transform the two-lane roadway to a four-lane divided highway. The existing portland cement concrete (PCC) pavement was removed and crushed for use as backfill under the new pavement. Two projects were also honored as finalists. A Michigan contractor rehabilitated U.S. 31 northbound in Ottawa County. The work included rubblizing more than 13 mi (21 km) of worn PCC pavement and overlaying it with more than 98,000 tons (88,906 Mg) of HMA to provide an extremely smooth ride. An Indiana contractor designed the Superpave mix that was used to resurface State Road 145 in southern Indiana. The project's smoothness specifications called for a tolerance of 12 in (30 cm) per mi; the profilograph showed an overall average of 0.89 in (2 cm) per mi.

  • Publication Date: 1999


  • English

Media Info

  • Features: Photos;
  • Pagination: p. 14-15
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00765061
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 19 1999 12:00AM