Why is Bioretention important?
Bioretention areas can provide excellent pollutant removal and recharge for the “first flush” of stormwater runoff. Properly designed cells remove suspended solids, metals, and nutrients, and can infiltrate an inch or more of rainfall.
What is Bioretention project?
Bioretention planters are planted depressions designed to collect and absorb stormwater runoff from nearby paved surfaces like streets and sidewalks. They combine engineered stormwater control and treatment with aesthetic landscaping.
What are lid planters?
Bioretention systems are low impact development (LID) features that use landscaped areas to slow, treat, retain and infiltrate stormwater runoff, mimicking the natural, pre-development hydrology of a site.
What are bioretention cells?
Bioretention cells, sometimes referred to as bio cells, are shallow stormwater basins that utilize engineered soils and vegetation to capture and treat runoff.
What are bioretention basins?
Bioretention Basins or Rain Gardens are basins containing landscaping features. adapted to provide on-site treatment of storm water runoff. They are commonly located in parking lot islands, along roadways, or within small pockets of residential land uses. Surface runoff is directed into shallow, landscaped depressions.
What is lid civil engineering?
The term low impact development (LID) refers to systems and practices that use or mimic. natural processes that result in the infiltration, evapotranspiration or use of storm water in.
What is bioretention cell?
Design Objective. A bioretention cell is an excavated area that is filled with a specialized soil media and plants, or grass/sod. It is designed to temporarily hold and filter stormwater.
What are LID techniques?
The term low impact development (LID) refers to systems and practices that use or mimic natural processes that result in the infiltration, evapotranspiration or use of stormwater in order to protect water quality and associated aquatic habitat.
What is the purpose of LID?
A lid, also known as a cover, is part of a container, and serves as the closure or seal, usually one that completely closes the object.
What is a bioretention system?
Bioretention systems are used to remove a wide range of pollutants, such as suspended solids, nutrients, metals, hydrocarbons, and bacteria from stormwater runoff. They can also be used to reduce peak runoff rates and increase stormwater infiltration when designed as a multi-stage, multi-function facility.
What is bioretention planting?
Bioretention cells are planted with grass, shrubs, small trees, or flowering plants that can tolerate both wet and dry conditions. They can look like depressed, shallow turf areas in a lawn, lush landscaped gardens in parking lot medians, a traditional flowerbed or a mixed ornamental planting.
What factors affect bioretention cell size?
Bioretention cell size is dependent on several factors including contributing drainage area, imperviousness of that drainage area, land use, soil type, and more. The greater the drainage area and amount of impervious cover within that drainage area, the larger the bioretention cell size needed.
Do you have a bioretention cell in your community?
If so, you might have a stormwater best management practice known as a bioretention cell (or rain garden) in your community. Figure 1. Bioretention cells in a residential lawn. Note the depressed, shallow basin characteristic of this best management practice. Photo courtesy Mary Caflisch.
What kind of vegetation does the bioretention cell in Aiken use?
Top: The bioretention cell located in a small pocket park in Aiken, SC uses turfgrass as its primary type of vegetation. A bridge has been installed to help pedestrians cross over the cell.