The Nevada Department of Transportation (NDOT) began to question the effectiveness of its pavement management system in 1997. NDOT found that while a 12-15 year-old interstate highway needed to be reconstructed, an 8-year-old highway generally continued to perform well. Thus, NDOT began to place 2-in. asphalt overlays on 8-year-old sections of interstate, whether the surface needed it or not. The procedure has worked so well that NDOT has made it policy. The new highway optimization program saves the state approximately $30 million per year. The initial hitch in the process involved making the political decision to let some roads in need of reconstruction go for an extra year or two so that the money could be put into resurfacing. The logic was that the cost of reconstructing a road from scratch would be the same in a year or two, but the cost of allowing a road to decline from acceptable to needing reconstruction would represent an enormous increase. Now that NDOT sees itself catching up with its interstate work, planners have developed similar programs for other categories of roads, based on traffic counts, that will get new surfaces every 10, 12, 15, and 20 years.

  • Authors:
    • Fickes, M
  • Publication Date: 2000-5


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00795711
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 25 2000 12:00AM