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→Permeable pavement sub-base and base course
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==Permeable pavement sub-base and base course==
==Permeable pavement sub-base and base course==
{{:Permeable pavement sub-base and base course}}
Because permeable pavements may be required to support heavy loads (driveways, laneways, etc.), the sub-base and base course may require compaction to prevent heaving and shifting.
Because permeable pavements may be required to support heavy loads (driveways, laneways, etc.), the sub-base and base course may require compaction to prevent heaving and shifting.