The world of stormwater management is increasingly turning to green infrastructure solutions to improve water quality while attenuating flooding.
When ecology and engineering join forces, green infrastructure is more than parkland or detention. It becomes a functional stormwater management tool that uses natural systems to infiltrate and cleanse stormwater, reduce runoff volumes, and restore a more natural hydrograph in developed areas.
It also becomes home and habitat for wildlife, pollinators, and people who enjoy living with nature.
AES has pioneered the design of natural treatment strategies to manage stormwater – starting as soon in the hydrologic cycle as possible – that infiltrate, disperse and store surface runoff, and more closely replicate natural hydrology.
This approach, the Stormwater Treatment TrainTM (STT), generally consists of a series of ecologically-focused BMPs that are sized, engineered, and designed for infiltration, reduced runoff, pollutant capture and treatment, water quality improvement, and low maintenance.
The STT is a landscape where water moves slowly through native vegetation features – uplands, prairies, wetlands, vegetated swales, naturalized ponds – that infiltrate, evaporate, filter, clean, and store stormwater.
Flows are dispersed and diffused through native vegetation and its absorbent soils. Stormwater management occurs naturally with less volume and delayed flows to ease stress on downstream water resources. Green infrastructure can be truly considered green.
AES range of stormwater services:
- Stormwater Management Planning
- Ecological Site Design
- Stormwater Engineering
- Hydrologic + Hydraulic Modeling
- Ecological Restoration Design + Construction
- Natural Area O + M
- Public Outreach + Education
- Vegetation, Hydrology + Wildlife Monitoring
At regional or watershed scale, AES scientists address issues of stormwater management by first understanding watershed conditions. Even at that scale, on down to site-scale, sources of runoff problems are interconnected.
We examine problems and constraints in tandem with potential natural solutions and opportunities – to find a balance at the point of conflict between human and natural systems.
At watershed scale, our geospatial capabilities in high-resolution aerial imagery, remote sensing, and GIS enable us to map conditions and model alternative solutions.
At site-scale, we design and engineer our Stormwater Treatment TrainTM systems to meet multiple goals.
STT systems help reduce flooding, and combined sewer overflows in urban areas, while contributing wildlife habitat and quality of life benefits. By reducing stormwater runoff volume at the source, STT strategies are cost-effective, long-term stormwater solutions that can grow with a community.