Bioretention is the process in which contaminants and sedimentation are removed from stormwater runoff. The main objective of the bioretention cell is to attenuate peak runoff as well as to remove …

These areas enhance evapotranspiration (the sum of evaporation and vegetation transpiration) by providing bioretention media and gravel layers where plant roots have greater access.

Bioretention areas (also referred to as bioretention cells or rain gardens) use soil, plants and microbes to treat stormwater before it is infiltrated or discharged.

Jun 23, 2025 · Bioretention areas are essentially shallow engineered depressions that are designed to capture and infiltrate stormwater runoff from impervious surfaces like rooftops, driveways, and …

ure understanding Bioretention Areas What it is Bioretention facilities (also known as rain gardens) are landscaped depressions designed with soils and a variety of plants to receive and treat .

Sep 17, 2025 · Bioretention cells are a fraction (usually between one-twentieth and one-fourth) of the impermeable area and may be installed in lawns, along the edges of roads, or in the medians of …

Sep 15, 2016 · Bioretention areas remove pollutants through filtration, microbes, and uptake by plants; contact with soil and roots provides water quality treatment better than conventional infiltration …

4.0 DESIGN CONSIDERATIONS When designing a bioretention planter or rain garden, the following parameters should be considered:

The bioretention surface area will usually be approximately 3% to 6% of the contributing drainage area (CDA), depending on the imperviousness of the CDA and the desired bioretention ponding depth.

Jul 25, 2025 · Unlike conventional stormwater management systems that rely on pipes and concrete channels to quickly convey runoff away from urban areas, bio-retention areas work with nature to …