Performance-Based Pavement Warranty Practices (2020) / Chapter Skim
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23 Introduction A survey was developed to determine agency practices regarding pavement warranty activities. The survey was provided to all U.S.
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24 Performance-Based Pavement Warranty Practices Pavement Warranty Objectives The most common objectives for pavement warranty implementation included increased pavement quality (25 agencies) , shifting the risk to the contractor (20 agencies)
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State of the Practice 25 • Increase quality, reduce agency inspection staff, and reduce project costs (one agency)
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26 Performance-Based Pavement Warranty Practices Number of responding agencies: 50 Note: Years of experience based on agencies who indicated current use of pavement warranties. Figure 5.
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State of the Practice 27 Number of responding agencies: 50 Note: Number of warranty projects based on agencies who indicated current use of pavement warranties. Figure 6.
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28 Performance-Based Pavement Warranty Practices Agency Project Type Mandated Alberta Transportation All P3 projects Yes California DOT All preventative maintenance projects Yes Florida DOT All new and reconstruction and all asphalt pavement rehabilitation projects Yes Idaho TD(a) Asphalt pavements and overlays of pavements in good condition No Louisiana DOTD All new and reconstruction projects Yes Maine DOT Asphalt pavements only, all new and reconstructed, rehabilitation, and preventative maintenance projects Yes Michigan DOT All new and reconstruction, asphalt rehabilitation (Superpave E-10 mix or higher)
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State of the Practice 29 Agency Project Type Other Criteria Alberta Transportation N/A P3 projects only California DOT Preservation N/A Florida DOT New, reconstruction, and asphalt pavement rehabilitation N/A Idaho TD Asphalt overlays of asphalt pavements Good existing condition and lower traffic volumes Louisiana DOTD New and reconstruction N/A Maine DOT New, reconstruction, rehabilitation, and preservation N/A Michigan DOT New, reconstruction, asphalt overlay, and asphalt pavement preservation N/A New Brunswick DOT&I New and reconstruction Project complexity New York State DOT Chip seal and asphalt surface course Asphalt surface course when placed outside seasonal limitations Ontario MOT New, reconstruction, and rehabilitation Dependent on project length, project complexity, existing pavement condition for rehabilitation projects, and funding source Pennsylvania DOT N/A Dependent on project site conditions, pavement type, traffic volume, and existing pavement condition Utah DOT N/A Only design-build projects Virginia DOT Only concrete patching N/A West Virginia DOH N/A(a) Dependent on project length, site conditions, traffic volume, project complexity, and existing pavement condition (a)
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30 Performance-Based Pavement Warranty Practices Contractor Responsibilities Along with pavement performance criteria, agencies were also asked to indicate the level of responsibility for contractors on pavement warranty projects. Twelve agencies indicated the contractor is responsible for the mix design; six agencies noted the contractor is responsible for pavement thickness design; and four agencies indicated the contractor is responsible for pavement type (treatment)
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State of the Practice 31 is only responsible for mix design, and one agency indicated the contractor can adjust (increase) thickness design based on agency minimum layer thickness recommendations.
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32 Performance-Based Pavement Warranty Practices New York State DOT The New York State DOT requires a 1-year maintenance bond for chip seals and for asphalt pavement surface courses when placed outside the seasonal limits (New York State Department of Transportation 2010)
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State of the Practice 33 The Ohio DOT has also developed a 7-year performance warranty for new asphalt and concrete pavements; however, use of the specification requires approval by the state construction engineer, and very few districts have made a request. For asphalt pavements, the warranty specification requires the contractor, at a minimum, to meet the following (Ohio Department of Transportation 2012)
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34 Performance-Based Pavement Warranty Practices The contractor is also required to obtain a bond for both pavement types equal to 30% of the total bid amount for the warranty item (Ohio Department of Transportation 2012, 2018)
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State of the Practice 35 Ontario MOT The Ontario MOT requires a 2-year materials and workmanship warranty for all double chip seal applications. Material specifications are in accordance with the departments' standards for aggregate and emulsified asphalt materials.
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36 Performance-Based Pavement Warranty Practices and in the longitudinal direction no more than 0.5 in.
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State of the Practice 37 Distress Type Severity Extent Corrective Action(a) Corner break Spalled ≤ 10% of the length of crack; no faulting; and ≤ 2 pieces < 2 corner breaks per ln-mi (1 per ln-km)
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38 Performance-Based Pavement Warranty Practices Number of responding agencies: 14 2 4 5 6 6 7 8 0 3 6 9 12 15 Improved use of materials Agency cost savings Agency time savings Improved pavement performance Improved contractor workmanship Reduced pavement failures Transfer risk to contractor NO. OF AGENCIES Figure 9.
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State of the Practice 39 (five agencies) , organizational challenges (four agencies)
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40 Performance-Based Pavement Warranty Practices Agency Years of Experience No. of Projects Treatment Type Warranty Type (Period)
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