Stormwater wetlands

Example of a stormwater wetland in a largely undeveloped area.

Stormwater wetlands are similar in design to stormwater ponds and mainly differ by their variety of water depths and associated vegetative complex. They require slightly more surface area than stormwater ponds for the same contributing drainage area. Stormwater wetlands are constructed stormwater management practices, not natural wetlands. Like ponds, they can contain a permanent pool and temporary storage for water quality control and runoff quantity control.

Wetlands are widely applicable stormwater treatment practices that provide both water quality treatment and water quantity control. Stormwater wetlands are best suited for drainage areas of at least 10 acres. When designed and maintained properly, stormwater wetlands can be an important aesthetic feature of a site.

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Stormwater wetlands articles

• Overview for stormwater wetlands
• Types of stormwater wetlands
• Design criteria for stormwater wetlands
• Construction specifications for stormwater wetlands
• Assessing the performance of stormwater wetlands
• Operation and maintenance (O&M) of stormwater treatment wetland practices
  • Operation and maintenance of stormwater wetlands - recommend using the above link
• Cost-benefit considerations for stormwater wetlands
• Calculating credits for stormwater wetlands
• References for stormwater wetlands
• Requirements, recommendations and information for using stormwater wetland as a BMP in the MIDS calculator.