Displaying 1 - 10 of 43 resources
In Oregon’s Willamette River Basin, managing water scarcity would be more effective if conservation measures were introduced in advance and upstream from the locations where droughts are likely to cause shortages, according to a new study.
One of the first steps in siting a low-impact development facility is infiltration testing. Infiltration tests estimate the rate at which runoff will infiltrate, or pass through, native soil. An infiltration test, in essence, involves digging a hole, pouring in water, and measuring the drop in water level over time.
Porous pavement allows runoff to move through the surface and into the soil beneath, reducing the volume of stormwater. Learn about porous asphalt, pervious concrete, permeable pavers and flexible paving systems and how each variation of porous pavement can substitute for conventional, impervious pavements without the need for an additional stormwater management system.
A water-quality swale is like a rain garden in motion: It treats runoff while simultaneously moving it from one place to another. Water-quality swales are channeled depressions planted with trees, shrubs and grasses that help remove pollutants from stormwater. Learn about two different kinds of swales and their costs, design, construction, and maintenance.
Vegetated filter strips are a stormwater management system designed to slow the speed of runoff, filter pollutants, and collect sediment. Learn design considerations and planting options for these low-maintenance, relatively inexpensive filtering facilities.
A rain garden doesn't "grow" rain, but it does provide an attractive, effective way to manage runoff. Learn what it takes to make your own rain garden.
Soakage trenches are a space-saving way to manage runoff while preserving aesthetics at a site, but developers should plan for significant costs to build and maintain them. Learn more about how to use soakage trenches as part of the low-impact development toolbox.
Growing a garden on your roof is an attractive alternative building method, but there's a lot to know before you start hauling soil to the top floor. Learn how vegetated roofs, also known as "green" roofs, can play an elevated role in the low-impact development landscape.