Essential Infrastructure for Sustainable Urban Development (Communities - Services Offered)

Item ID 15461455 in Category: Communities - Services Offered

Essential Infrastructure for Sustainable Urban Development


Stormwater Basins are designed to detain and slow down storm water. They capture runoff and then slowly discharge it to groundwater.

Planting a native landscape in a new (nonvegetated) basin is easy; however, re-vegetating an existing basin can be challenging.

Dry basins require plant species that can survive alternating periods of inundation and drought. Examples include rushes and grasses.

Drainage

Stormwater Basins are important for reducing flooding and erosion problems caused by runoff from urban areas. When these basins are properly designed and built, they divert stormwater from city sewer systems to slow its flow down and prevent damage to natural stream and river waterways.

The most important aspect of a basin is how it is constructed and its design, which must be done by a professional engineer. The next most important aspect is how the basin catches and holds the rainwater that flows into it. To do this, the basin must have good water infiltration. This can be accomplished through the use of drainage cells, flush kerbs, ephemeral winter wet depressions and native wetland plants such as marsh marigold (Marigoldus arundinaceus) or water celery (Vallisneria oleracea).

A wet detention basin has a permanent pool and can be planted with vegetation that is designed to improve the water quality. These plant species should exist in proper balance with the nutrient load of the water and be resistant to excessive algae growth.

A dry basin, also known as a detention pond, has no permanent pool and only controls flood flow rates through attenuation. However, this type of system can still provide some water quality benefits through sediment and particulate settling. This is a system that works best for sites with ten or more acres and is best used in situations where water quality treatment may not be a priority.

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Last Update : Dec 04, 2023 12:03 AM
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Item  Owner  : Drainageteam
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