Improvement of Low Traffic Volume Gravel Roads in Nebraska

In the state of Nebraska, the total mileage of roads is 96,725. Of this total mileage, approximately 75% or 72,000 miles are unpaved roads that are owned by either local or state agencies. The costs, manpower, and time associated with the required maintenance of these roads are significant. Due to overwhelming costs and maintenance schedules, poor performance of gravel roads is commonly observed. In this research project, it is envisioned that a modified gravel mix specification from native Nebraska sources may significantly improve the performance of these unpaved roads under various traffic, weather, and environmental loads resulting in a lower life-cycle cost. Primary objective is to recommend modifications to surface gravel aggregate specifications within the publication, Standard Specifications for Highway Construction, using material characterization and field verification. The performance evaluation of the gravel will be field verified using remote sensing technology in terms of unraveling and spreading for a one year cycle. Using statistics, the gravel road's performance will be related to aggregate characteristics to support a modified specification.


    • English


    • Status: Active
    • Funding: $137323.00
    • Contract Numbers:

      SPR-P1(16) M040

    • Sponsor Organizations:

      Federal Highway Administration

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

      Nebraska Department of Roads

      1500 Highway 2
      Lincoln, NE  United States  68502
    • Performing Organizations:

      University of Nebraska, Lincoln

      527 Nebraska Hall
      Lincoln, NE  United States  68588-0529
    • Principal Investigators:

      Wood, Richard

    • Start Date: 20150701
    • Expected Completion Date: 0
    • Actual Completion Date: 20161231
    • Source Data: RiP Project 39671

    Subject/Index Terms

    Filing Info

    • Accession Number: 01569414
    • Record Type: Research project
    • Source Agency: Nebraska Department of Roads
    • Contract Numbers: SPR-P1(16) M040
    • Files: RiP, STATEDOT
    • Created Date: Jul 11 2015 1:00AM