What are the disadvantages of a rain garden?

What are the disadvantages of a rain garden?

DISADVANTAGES OF RAIN GARDENS If your rain garden is not functioning properly, you may have issues with drainage. Rainwater runoff will accumulate in the basin, which can lead to backups and flooding. An improperly designed basin can also lead to increased erosion rates.

How does a rain garden help reduce runoff?

Rain gardens capture runoff from impervious surface areas such as rooftops and driveways and allow it to seep slowly into the ground. Rain gardens fill with stormwater and allow the water to slowly fil- ter into the ground rather than running off into storm drains, and eventually into streams and lakes.

How do rain gardens affect the environment?

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. Rain gardens can also help filter out pollutants in runoff and provide food and shelter for butterflies, song birds and other wildlife.

Where should rain gardens be placed?

The rain garden should be located in a place that can collect as much impervious area (driveway, roof, sidewalks) runoff as possible. The best areas are generally where water naturally drains but doesn’t hold water. It should also be located at least 5′-15′ away from your home.

What makes a landscaping surface permeable to water?

How to create landscaping surfaces that allow for the absorption of storm water. Gaining an understanding of the importance of stormwater management may steer you towards a design and product choice in interlocking paver stones which will help you retain and manage stormwater that falls within your property.

What can I do in front of my house that is permeable?

You can provide paved areas in front of your house without adding to flood risk and pollution. You can use permeable surfaces that allow water to drain into them or by other methods such as rain gardens (see below). Permeable driveways are often more attractive than an expanse of concrete, adding value to the property.

How does permeable surface of front garden affect temperature?

Some water that soaks into the ground will evaporate back into the air, causing a cooling effect around the house. This is lost if the garden is covered with hard impermeable surfaces and can cause local temperatures to rise (often referred to as the urban heat island effect). Section 2 How can we prevent the problem? 7 Section 2

How are permeable pavements used in green infrastructure?

Permeable pavements infiltrate, treat, and/or store rainwater where it falls. They can be made of pervious concrete, porous asphalt, or permeable interlocking pavers. This practice could be particularly cost effective where land values are high and flooding or icing is a problem.