Bioretention cells: Gallery

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  The sunken curb holds the edge of the asphalt pavement and lets water freely flow to the bioretention cell beside the 7sigma parking lot in Minneapolis, MN (USA)
  Photo credit:BrianAsh

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  Bioretention cells on Elm Drive, Mississauga, are lower then the adjacent road to accommodate a catch basin inlet between the paved surface and the cells. Photo credit: CVC

A mixture of mineral aggregates bound with bituminous materials, used in the construction and maintenance of paved surfaces.

Ground depression acting as a flow control and water treatment structure, that is normally dry.

Credit Valley Conservation