Changes

<li>Dams are usually installed between 10-20 m along the swale. They are distributed such that the crest of each dam is at approximately the same elevation as the toe of the upstream dam.  If the slope along the swale varies, so should the distance between the dams.</li>

<li>Dams are usually installed between 10-20 m along the swale. They are distributed such that the crest of each dam is at approximately the same elevation as the toe of the upstream dam.  If the slope along the swale varies, so should the distance between the dams.</li>

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The objective of these design recommendations are to maximize the distribution of ponded water along the whole BMP. Detailed design may require iteration of the dam heights and distances along each section of a long swale.  

The objective of these design recommendations are to maximize the distribution of ponded water along the whole BMP. Detailed design may require iteration of the dam heights and distances along each section of a long swale. Dams may be constructed of any resilient and waterproof material, including: rock gabions, earth berms, coarse aggregate or rip-rap, concrete, metal or wood. Energy dissipation and erosion control measures should be installed in the 1-2 m  downstream of each dam. </p>

They may be constructed of any resilient and waterproof material, including: rock gabions, earth berms, coarse aggregate or rip-rap, concrete, metal or wood. Energy dissipation and erosion control measures should be installed in the 1-2 m  downstream of each dam. </p>

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IMG 2457 750X500.jpg| Bioretention cell capturing and treating runoff from adjacent parking lot at the Kortright Centre, Vaughan.

Check dams.png| Dam it

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