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Top Terms > Facilities > Transportation, hydraulic and utility facilities > Highway facilities > Roads > Parts of roads > Pavements > Pavement components > Pavement layers > Subbase (Pavements)

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Subbase (Pavements) (Pmrcpppmg)

Definition
The layer or layers of specified or selected material of designed thickness placed on a subgrade to support a base course. (Source: AASHTO Glossary)
Broader Term
Pavement layers (Pmrcpppm)
Related Terms (Hierarchical)
Surface course (Pavements) (Pmrcpppmb)
Base course (Pavements) (Pmrcpppme)
Pavement interlayers (Pmrcpppmi)
Subgrade (Pavements) (Pmrcpppmr)