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→Planning Considerations
===Planning Considerations===
===Planning Considerations===
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<ul>
<ul>
<li>Although linear design (surface area typically >2:1 length:width) is a feature of a swale, an absolute minimum width is 0.6 m is required for bioswales to have healthy plant growth, and to facilitate construction. </li>
<li>Although linear design (surface area typically >2:1 length:width) is a feature of a swale, an absolute minimum width is 0.6 m is required for bioswales to have healthy plant growth, and to facilitate construction. </li>
<li>Slopes > 6% can accommodate a series of stepped [[bioretention cells]], each overflowing with a weir, into the next. </li>
<li>Slopes > 6% can accommodate a series of stepped [[bioretention cells]], each overflowing with a weir, into the next. </li>
</ul>
</ul>
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<gallery mode="packed" widths=300px heights=300px>
Bioswale.png| Bioswale with check dams, vertical scale exaggerated.
Stepped cells.png| The stepped cells alternative for slopes > 6 %.
</gallery>
</div>
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