How does landscape architecture contribute to stormwater management?

Landscape Architecture for Stormwater Management refers to the design of outdoor spaces and green infrastructure specifically intended to manage rainwater runoff, reduce flooding, and improve water quality within a development.

How Landscape Architecture Contributes to Stormwater Management

• Permeable paving and green spaces allow rainwater to infiltrate the ground rather than generating excessive runoff.
• Bioswales and rain gardens are designed to capture, filter, and slowly release stormwater during heavy rain events.
• Retention ponds and detention basins manage larger volumes of stormwater to prevent downstream flooding.
• Native, deep-rooted plantings improve soil infiltration capacity and reduce erosion from stormwater flow.

How Does Landscape Architecture Contribute to Stormwater Management

• Reduces the burden on conventional stormwater infrastructure by managing runoff through natural, green systems.
• Improves water quality by filtering pollutants from stormwater before it reaches natural waterways.
• Reduces flood risk by slowing and dispersing stormwater flow across a site.
• Enhances the aesthetic and ecological value of a development while serving a functional infrastructure purpose.

Best Practices for Stormwater-Focused Landscape Design

• Integrate stormwater management considerations early in the overall site and landscape design process.
• Select native, appropriate plantings suited to the specific stormwater management function required.
• Size retention and detention systems appropriately based on local rainfall patterns and site conditions.
• Coordinate landscape design with civil engineering to ensure integrated, effective stormwater management.

Thoughtful landscape architecture provides both functional stormwater management benefits and aesthetic value, reducing flood risk while enhancing a development's outdoor environment.