World Wetlands Day 2024
How DELV is taking action
We have a central role in leading the conversation around the conservation of these critical ecosystems (say that five times fast).
How might we design to conserve water use, while also managing stormwater as responsibly as we can?
How could we prevent flooding by absorbing water and reducing runoff?
By 2030, we plan to reduce stormwater runoff on all projects by 50%, with the goal of 100% on-site stormwater management (without wet or dry surface detention ponds).
Two of our standard practices for every new project are:
- Study how to minimize storm water runoff by reuse or filtration
- Reduce or eliminate outdoor water use with native plantings and rainwater harvesting
FISHERS CITY HALL + ARTS CENTER | FISHERS, IN
Strategy 1: Minimize Runoff
- Challenge – The site was tight–with more impervious roofing and paving than site available. Collaborating with landscape architects and civil engineers, the design team had to find a location on site to accommodate drainage.
- Solution – Design a rain garden that is purposeful and a beautiful addition to the community. The solution helps to mitigate stormwater runoff while creating a dynamic front entry to the building comprised of terraces, local stones, boulders, native vegetation, sculptural art, and custom downspouts that drain directly into the rain garden. The use of 100% native plantings and the directing of rainwater into the garden reduces irrigation needs for the site.
ARIEL CYCLEWORKS | GOSHEN, IN
Strategy 2: Filtration
- Challenge – No available city storm sewer capacity, so all rainwater must be managed on the site. Given the urban and compact nature of the site, a detention pond was not an option.
- Solution – Use a series of infiltration strategies to manage the site drainage. Permeable pavers were used instead of asphalt in parking areas. Bioswales with native plants that reduce the need for irrigation, were incorporated strategically throughout the parking lot to collect extra runoff from the parking lot. Underground gravel retention under the parking lot was incorporated to temporarily hold stormwater from the site as well as the roof, allowing it to naturally infiltrate into the water table.
How you can join us
- Get curious and ask questions about strategies for your projects that can help preserve and protect the natural environment around us
- Learn more about DELV’s initiatives and commitments in our Sustainability Action Plan
- Discover current and proposed legislation which will influence your current and future projects