Engineering Concepts for Bioretention Facilities - Rutgers ...
Engineering Concepts for Bioretention Facilities - Rutgers ...
Engineering Concepts for Bioretention Facilities - Rutgers ...
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Rain Garden Ponding Depth<br />
Between four and eight inches deep<br />
Depth depends upon lawn slope<br />
If the slope is less than 4%, it is<br />
easiest to build a 3 to 5-inch deep rain<br />
garden.<br />
If the slope is between 5 and 7%, it is<br />
easiest to build one 6 to 7 inches<br />
deep.<br />
If the slope is between 8 and 12%, it is<br />
easiest to build one about 8 inches<br />
deep.