Synthesis of Information Related to Highway Problems. Topic 45-14. Practices for Permitting Superheavy Load Movements on Highway Pavements

Superheavy loads vary across the country. For this synthesis, generally, the study seeks to document states' processes in this area and those whose permits require additional engineering analysis. The impact of increasing superheavy loads on the pavement performance is a growing concern and challenge to the highway agencies. Two main concerns regarding the superheavy load movements for highway agencies are: (1) the pavement damage potential of a rapid, load-induced failure under superheavy loads and (2) allocation of highway cost to a superheavy load move due to its critical contribution to the accumulation of pavement distresses. Although different processes have been used by state departments of transportation (DOTs), these processes have not been adequately documented. Furthermore, current permitting processes may not be commensurate with the cost-responsibility of superheavy load movements. The objective of this study is to collect and review information relevant to superheavy load movements on highway pavements, including pavement analysis models and methods, permitting processes, and highway cost allocation methods. This information may be obtained from domestic and international literature, a survey of state highway agencies and other sources. From survey results, 3 to 5 agencies from varying regions will be selected and case examples will be developed. Lessons learned and gaps in information will also be covered. Information gathered will include, but not be limited to documentation of the following: (1) Permitting processes for "overweight"; (2) How states define "superheavy" loads; (3) Available data on distresses attributed to heavy loads; (4) Impact on pavement performance and service life; (5) Methods and procedures used for modeling/engineering impacts and fees and changes over time; (6) Identification of how the existing structure is taken into consideration during the permit process; (7) Sub-surface utility considerations; (8) Cost allocation; (9) Mitigation strategies for reducing potential pavement damage/failure; and (10) State inter-connectivity


  • English


  • Status: Active
  • Funding: $40000.00
  • Contract Numbers:

    Project 20-05, Topic

  • Sponsor Organizations:

    Federal Highway Administration

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

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program (NCHRP) Synthesis

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001
  • Project Managers:

    Vlasak, Donna

  • Performing Organizations:

    University of Texas, San Antonio

    6900 N. Loop 1604 W
    San Antonio, TX  United States 
  • Principal Investigators:

    Papagiannakis, Tom

  • Start Date: 20131018
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 37743

Subject/Index Terms

Filing Info

  • Accession Number: 01545073
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic
  • Files: TRB, RiP
  • Created Date: Nov 25 2014 1:01AM