Difference between revisions of "Bioretention: Partial infiltration"
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| + | |thumb|600px|'''Partial infiltration''' bioretention cell draining a parking lot. This design variation includes an underdrain and surface overflow pipes that allow excess water to leave the practice. A monitoring well is included so drainage performance can be evaluated over its operating lifespan. For more details on this variation of a bioretention feature and others, click here for the [https://www.toronto.ca/legdocs/mmis/2017/pw/bgrd/backgroundfile-107514.pdf City of Toronto's Green Streets Technical Guidelines (GSTG).],<ref>City of Toronto. 2017. City of Toronto's Green Streets Technical Guidelines - Version 1.0. Schollen & Company Inc., Urban Forest Innovators, TMIG, DMG. August, 2017. https://www.toronto.ca/legdocs/mmis/2017/pw/bgrd/backgroundfile-107514.pdf</ref> <span style="color:red">'''''Note''': The following is an "image map", feel free to explore the image with your cursor and click on highlighted labels that appear to take you to corresponding pages on the Wiki.''</span> | ||
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| + | rect 1134 3187 1159 3246 [[Digital technologies|Water Level Sensor]] | ||
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| + | rect 1295 3183 1348 3254 [[Bioretention|Water Storage Depth]] | ||
| + | rect 939 1415 1011 1482 [[Overflow|Overflow Outlet]] | ||
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| + | rect 935 3229 1012 3285 [[Overflow|Overflow Outlet Pipe]] | ||
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Revision as of 15:29, 3 March 2022
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Overview[edit]
Over soils with slow infiltration rates, it is advantageous to drain a portion of the stored water prior to any upcoming storm. This popular design choice can optimize annual water balance, mitigate peak flow rates and by ensuring water flow through, can reduce the accumulation of sodium and chlorine ions from winter salting.
Partially infiltrating bioretention with underdrain.
Partially infiltrating bioretention with anaerobic/aerobic storage zone.
Materials[edit]
Research[edit]
Bioretention: Partial infiltration volume