Difference between revisions of "Bioretention: Partial infiltration"
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| − | File:Bioretention | + | File:Bioretention Partial infiltration final.png|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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| − | poly | + | rect 1267 2836 1310 3183 [[Wells|Monitoring Well]] |
| − | + | rect 1277 3185 1304 3244 [[Digital technologies|Water Level Sensor]] | |
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| − | rect | + | rect 1398 1234 1441 1378 [[Curb cuts|Curb Cut]] |
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| − | rect | + | rect 1007 1089 1235 1399 [[Plant lists|Vegetation]] |
| − | + | rect 939 1415 1011 1482 [[Overflow|Overflow Outlet]] | |
| − | rect | + | rect 1117 1425 1153 1474 [[Underdrains|Underdrain Access Structure]] |
| − | rect | + | rect 854 1652 1408 2651 [[Trees: List|Tree]] |
| − | rect | + | rect 1064 2684 1227 2822 [[Plant lists|Vegetation]] |
| − | rect | + | rect 862 2863 955 2940 [[Flow through media|Ponding Depth]] |
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| − | rect | + | rect 1164 2900 1398 2938 [[Mulch|Mulch]] |
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| − | + | rect 1121 3134 1161 3175 [[Underdrains|Underdrain]] | |
| − | + | rect 956 2845 1017 3177 [[Overflow|Overflow Outlet]] | |
| − | + | rect 864 2943 955 3079 [[Bioretention: Filter media|Filter Media]] | |
| − | rect | + | rect 1023 2941 1111 3083 [[Bioretention: Filter media|Filter Media]] |
| − | + | rect 1168 2938 1392 3081 [[Bioretention: Filter media|Filter Media]] | |
| − | rect | + | rect 866 3083 953 3116 [[Choker layer|Choker Layer]] |
| − | rect | + | rect 1021 3079 1110 3116 [[Choker layer|Choker Layer]] |
| − | rect | + | rect 1168 3085 1386 3116 [[Choker layer|Choker Layer]] |
| − | rect | + | rect 868 3120 955 3185 [[Reservoir aggregate|Clear Stone / Aggregate]] |
| − | rect | + | rect 1023 3114 1113 3189 [[Reservoir aggregate|Clear Stone / Aggregate]] |
| − | rect | + | rect 1170 3116 1388 3191 [[Reservoir aggregate|Clear Stone / Aggregate]] |
| − | rect | + | rect 1045 3252 1363 3309 [[Soil groups|Native Soil]] |
| − | rect | + | rect 900 3289 1047 3309 [[Soil groups|Native Soil]] |
| − | rect | + | rect 1112 3181 1169 3250 [[Bioretention|Water Storage Depth]] |
| + | rect 935 3229 1012 3285 [[Overflow|Overflow Outlet Pipe]] | ||
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Revision as of 19:59, 2 March 2022
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 City of Toronto's Green Streets Technical Guidelines (GSTG).,[1] 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.
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
- ↑ 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