Stormwater Management: Objectives, design description, and criteria
Site stormwater management features are designed to integrate performance and aesthetic experience. Stormwater sheet flow is intercepted by the perimeter native grass meadow—a “sponge” that slows the velocity of stormwater and provides deep root zones for infiltration. The meadow blend includes low-growing native grasses and perennials acting as the site’s own greenbelt, a microcosm of the greenbelt that protects and recharges Norris’s municipal water supply. Overflow cistern rainwater is sent to four terraced rain gardens that provide level areas for infiltration on an existing 1:4 sloped site