Rain Garden Construction Detail
Runoff that travels to a rain garden is temporar ily ponded but it doesn t stay ponded for long.
Rain garden construction detail. The better a plant can handle wet feet the closer it is placed to the center of the garden. A rain garden more than eight inches deep might pond water too long look like a hole in the ground and present a tripping hazard for somebody stepping into it. Capturing runoff in a rain garden allows water to infiltrate into the soil rather than run into storm drains.
A rain garden is a depressed area in the landscape that collects rain water from a roof driveway or street and allows it to soak into the ground. The plants and amended soil in a rain garden work together to filter runoff. Homeowners may choose to direct their downspouts into rain gardens where plants can absorb and filter even more water.
They filter stormwater through soil mix and plants. The simplest form of rain garden is a shallow depression located downslope from impervious surfaces. However for the purposes of this guide a rain garden is a simple intervention designed to receive rainwater which has come from a downpipe or a large do mestic paved area.
The rainwater enters the soil and drains away into the ground or is taken up by the plants and lost back to the air by a process known as evapotranspiration. These absorb and filter contaminants before stormwater flows to. Planted with grasses and flowering perennials rain gardens can be a cost effective and beautiful way to reduce runoff from your property.
A rain garden much less than four inches deep will need an excessive amount of surface. Use a mix of plants adapted to your area and to the different water depths. How to use this guide.
A rain garden is a functional landscaped area constructed to capture and hold stormwater so that it infil trates into the soil rather than becoming surface runoff. Rain gardens are landscape features usually emphasizing native plantings that are designed to capture storm water runoff and allow it to filter into the soil and potentially groundwater below. Rain gardens not only beautify an area they bring larger benefits to the environment both locally and beyond.