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- What is a swale? Definition, purpose, and how it works - Autodesk
Swales are shallow, vegetated channels are designed to slow down, capture, and filter stormwater by controlling the flow of water through the swale, reducing the risk of flooding and improving water quality
- Swale (landform) - Wikipedia
Swales as used in permaculture are designed by permaculturalists to slow and capture runoff by spreading it horizontally across the landscape (along an elevation contour line), facilitating runoff infiltration into the soil
- What Is a Swale? Complete Guide to Natural Drainage (2026)
Unlike the deep V-shaped ditches designed to rush water away quickly, swales are broad and flat-bottomed—wider than they are deep—giving rainwater a chance to pause, spread out, and infiltrate the ground The key distinction: a swale isn’t trying to get rid of your water—it’s trying to keep it
- Swales 101: How They Work and Why They’re Essential for Stormwater . . .
Unlike traditional drainage systems that quickly direct water away, swales allow water to soak into the ground, replenishing groundwater supplies and reducing erosion By managing runoff volumes effectively, swales help restore natural hydrologies, reducing stress on sewer systems and storm drains Types of Swales
- How to Create a Drainage Swale - This Old House
Swales follow the contours around the base of a natural or created slope, redirecting storm water and filtering runoff as it sinks into the soil, instead of keeping it in one place, like a rain garden
- How to Dig a Swale for Irrigation and Runoff Management
Swales capture and transport surface runoff, nourishing plants and reducing erosion The berms beneath them make great fertile planting beds, and best of all, many swales can be dug by hand, which means they don’t cost anything!
- Swales - SF Better Streets
Swales are typically installed by major new development or as part of corridor-wide improvements They require complex engineering and take up a larger surface area, and are generally not installed in streets by individual small property owners, tenants, or business owners
- San Diego County LID Handbook-final
Swales are shallow, open channels that are designed remove pollutants such as sediment by physically straining and filtering water through vegetation or cobble within the channel
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