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Course Description

Maintenance Training Series: Base and Subbase Stabilization and Repair - WEB-BASED

PROGRAM AREA: Construction and Maintenance
Web-based Training (WBT)Web-based Training (WBT)
Calendar Year
1 Hours
0 Units
$25 Per Participant



Before preservation treatments can be applied, localized repairs may be necessary for a pavement's base or subbase. The Base and Subbase Stabilization and Repair course gives participants the knowledge they need to determine if the base or subbase must be stabilized or repaired, to select the appropriate stabilization and repair methods for a given project, and to ensure the repair is performed properly.

This training reviews the failures and distresses that indicate structural deterioration exists in a roadway. The course also covers project selection and trade-off considerations through example roadway projects that give participants the opportunity to evaluate a roadway and determine if it is a candidate for reconstruction or repair. Participants can use this information, as well as guidance on design and construction, to make sound project planning decisions.

This training was developed as part of the Maintenance Training Series. To access all the courses in the series, enroll in the 134109 course.


Upon completion of the course, participants will be able to:

  • Identify the symptoms of a localized base or subbase problem, which require greater depth of stabilization and repair than a hot-mix asphalt (HMA) or portland cement concrete (PCC) surface repair patch
  • Determine when it is appropriate to employ base or subbase repair on a preventive maintenance project
  • Identify the most appropriate repair methods if base or subbase failures are identified in a project


This course is designed for State, regional, and county personnel who manage operations programs and deal with oversight and quality assurance across broad geographic areas. This target audience also is involved with handling materials, scheduling, budgeting, and planning.

If you have questions about this NHI training, please contact NHI at or 877.558.6873.


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