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PERMEABLE PAVEMENT

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Permeable pavement refers to surface treatment that is suitable for pedestrian or vehicular traffic and contains pore spaces or joints that allow stormwater to pass through to a stone base where it is infiltrated into the underlying native soil or temporarily detained. Types of permeable pavement include: previous concrete, porous asphalt, and permeable interlocking concrete pavers.

COMPATIBILITY

  • Commonly used in parking lots, internal roadways, and pedestrian pathways
  • Permeable pavement options vary depending upon whether the pavement receives light, moderate, or heavy use
  • Ensure underlying soil type is permeable to prolong lifespan of infrastructure

 

MAINTENANCE

  • Regular maintenance is critical to the continued effectiveness and durability of permeable pavement materials
  • Routine street sweeping to avoid sediment built up
  • Weeding and mowing depending on type of permeable pavement
  • Removing leaves and debris to avoid clogging, ideally 2 to 4 times a year
  • Avoid using sand to treat icy-conditions, especially in parking lot areas, to prevent clogging
  • Regular mechanical street sweepers are compatible with most permeable pavements. Alternatively, regenerative air street sweepers and vacuum street sweepers may be used

 

COSTS

  • Design, operation, and maintenance procedures will impact installation and maintenance costs
  • Costs vary widely depending whether permeable asphalt, concrete, or interlocking pavers are used
  • Maintenance may require special street sweepers, which increases initial maintenance costs if machinery needs to be purchased

 

RESOURCES


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