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→Design
<h4>Underdrains</h4>
<h4>Underdrains</h4>
{{:Underdrain}}
{{:Underdrain}}
<h4>Check dams</h4>
<h4>Check dams</h4>
<p>Check dams are a feature of enhanced swales. They promote infiltration and evaporation by promoting limited ponding.
<p>Check dams are a feature of enhanced swales. They promote infiltration and evaporation by promoting limited ponding.