Trench drains: Gallery

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  • Combination of trench drain and winter shut off gate: King Street, Kitchener, ON

  • Bioretention system, or rain garden, in Portland, US Taken in April 2013
    Photo credit:EmilyBlueGreen 

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A shallow excavated surface depression containing prepared filter media, mulch, and planted with selected vegetation.

A lot level bioretention cell designed to receive and detain, infiltrate and filter runoff, typically used for discharge from downspouts.

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