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Line 50: − − <p><strong>The fundamental components of a swale are:</strong> − <ul> − <li>Graded channel</li> − <li>Planting</li> − </ul> − <strong>Additional components may include:</strong> − <ul> − <li>[[Filter media]] - an engineered soil mix</li> − <li>[[Underdrain]] with clean out and inspection ports</li> − <li>[[Liner|Impermeable membrane]] to prevent infiltration to soils below</li> − <li>[[Turf reinforcement]] to prevent scour</li> − <li>[[Check dams]] to facilitate short tern ponding</li> − </ul> − </p> −
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===Overview===
===Overview===
<p>Swales are linear landscape features consisting of a drainage channel with gently sloping sides. Underground they may be filled with engineered soil and/or contain a water storage layer of coarse gravel material. Two variations on a basic swale are recommended as low impact development strategies, although using a combination design of both may increase the benefits:
<p>Swales are linear landscape features consisting of a drainage channel with gently sloping sides. Underground they may be filled with engineered soil and/or contain a water storage layer of coarse gravel material. Two variations on a basic swale are recommended as low impact development strategies, although using a combination design of both may increase the benefits:
<br><strong>Bioswales</strong> are sometimes referred to as 'dry swales', 'vegetated swales', or 'water quality swales'. This type of structure is similar to a [[Bioretention cells|bioretention cell]] but with a long linear shape (surface area typically >2:1 length:width )
<br><strong>[[Bioswales]]</strong> are sometimes referred to as 'dry swales', 'vegetated swales', or 'water quality swales'. This type of structure is similar to a [[Bioretention cells|bioretention cell]] but with a long linear shape (surface area typically >2:1 length:width )
<br><strong>Enhanced Grass Swales</strong> are a lower maintenance alternative, but generally have lower stormwater management potential. The enhancement over a basic grass swale is in the addition of check dams to slow surface water flow and create small temporary pools of water which can infiltrate the underlying soil.
<br><strong><strong>Enhanced Grass Swales</strong></strong> are a lower maintenance alternative, but generally have lower stormwater management potential. The enhancement over a basic grass swale is in the addition of check dams to slow surface water flow and create small temporary pools of water which can infiltrate the underlying soil.
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{{TextBox|1=Swales are an ideal technology for:
{{TextBox|1=Swales are an ideal technology for:
*Sites with long linear landscaped areas, such as parking lots
*Sites with long linear landscaped areas, such as parking lots
*Connecting with one or more other types of LID}}
*Connecting with one or more other types of LID}}
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<caption><strong>Types of Swales</strong></caption>
<caption><strong>Types of Swales</strong></caption>
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