Rain Gardens& BioswalesBy Tom BarrettGreen Water Infrastructure, Inc.www.ThinkGWI.com                                   Fo...
The GREENEconomy
How Much Rain Falls in Chicago?January      -  1.86"   Image of Rain FallingFebruary     -  1.58"March        -  2.59"Apri...
How Much Water Falls in Chicago?                     2,500 sq. ft. RoofJanuary  -  ,727 gallons               2           ...
How Much Water Falls in Chicago?                 3 Acre Commercial PropertyJanuary  -  42,560 gallons               1     ...
How Much Water Falls in Chicago?                           City Block                    (660’ x 660’ – 10 acres)January  ...
Low Impact Site Development
Stormwater MitigationStormwater MitigationStormwater MitigationStormwater MitigationStormwater Mitigation
Peak Flow               (2,500 ft. sq. Roof)                           Grass Field        Roof1 Year Storm                ...
Peak Flow                 (1 Acre Site)                          Grass Field         Roof1 Year Storm               630 gp...
Change in Peak Runoff Flow Before and after Development300%225%150% 75%  0%                   m                  m        ...
Image of Rain Falling
Pesticide IssuesAtrazine, Nitrogen, Phosphorous
Stormwater Mitigation– Collection runoff near the  source– Slow it down– Soak it in– Filter it– Apply it to the landscape–...
Simple Rain garden
Bioswales Engineered Soils Underdrain
Location           Plant Choices                                                              Rain gardens are often      ...
Rain Garden
BioswalesBurnsville, Minnesota
Native Vegetationwww.epa.gov/greenacres/   www.for-wild.org
Street Edges& Medians
Parking LotEdges
Parking LotIslands
DrivewayEdge
Neighborhoods
Rain GardenIndianapolis
Rain Garden	Indianapolis - Fall Creek Parkway
Functional Landscapes
Thank You
Rain Gardens & Bioswales Construction (Brownsburg, January 2011)
Rain Gardens & Bioswales Construction (Brownsburg, January 2011)
Rain Gardens & Bioswales Construction (Brownsburg, January 2011)
Rain Gardens & Bioswales Construction (Brownsburg, January 2011)
Rain Gardens & Bioswales Construction (Brownsburg, January 2011)
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Rain Gardens & Bioswales Construction (Brownsburg, January 2011)

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ain Gardens and bioswales are some of our most effective tools in implementing sustainable water practices.

In the presentation, Barrett will discuss how rain gardens and bioswales protect, restore, and mimic the natural water cycle. Additionally, Tom will explain how rain gardens and bioswales can help develop a natural solution for water efficiency, and relieve storm water management issues. Rain Gardens and bioswales create natural filters through which our rainwater can flow. We are in essence helping to remove the contaminants, while reducing the speed and volume in which the water runs to the storm drains. By choosing to create a rain garden or other environmentally responsible landscape solution, we can reduce the contaminants that collect in the sewer systems, and make a significant improvement for a cleaner and healthier environment.

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Rain Gardens & Bioswales Construction (Brownsburg, January 2011)

  1. 1. Rain Gardens& BioswalesBy Tom BarrettGreen Water Infrastructure, Inc.www.ThinkGWI.com Follow us on Twitter @TomBarrett_GWITom.Barrett@ThinkGWI.com © 2011 Tom Barrett
  2. 2. The GREENEconomy
  3. 3. How Much Rain Falls in Chicago?January - 1.86" Image of Rain FallingFebruary - 1.58"March - 2.59"April - 3.28"May - 3.75"June - 4.08"July - 3.39"August - 3.38"September - 2.91"October - 2.65"November - 2.09"December - 1.88"Total 33.44"
  4. 4. How Much Water Falls in Chicago? 2,500 sq. ft. RoofJanuary - ,727 gallons 2 Image of Rain FallingFebruary - ,540 2March - ,130 4April - 5,735May - ,268 5June - 5,657July - ,470 5August - ,200 7September- ,096 5October - ,223 4November - 4,691December - 3,787Total 6,525 5
  5. 5. How Much Water Falls in Chicago? 3 Acre Commercial PropertyJanuary - 42,560 gallons 1 Image of Rain FallingFebruary - 32,784 1March - 15,876 2April - 299,783May - 75,344 2June - 295,710July - 85,934 2August - 76,358 3September - 66,383 2October - 20,764 2November - 245,203December - 197,954Total 2,954,654
  6. 6. How Much Water Falls in Chicago? City Block (660’ x 660’ – 10 acres)January - 75,195 gallons 4February - 42,610 4March - 19,581 7April - 999,267May - 17,805 9June - 985,690July - 53,105 9August - ,254,515 1September - 87,936 8October - 35,873 7November - 817,335December - 659,842Total 9,848,756
  7. 7. Low Impact Site Development
  8. 8. Stormwater MitigationStormwater MitigationStormwater MitigationStormwater MitigationStormwater Mitigation
  9. 9. Peak Flow (2,500 ft. sq. Roof) Grass Field Roof1 Year Storm 36 gpm 111 gpm2 Year Storm 54 gpm 139 gpm10 Year Storm 111 gpm 206 gpm25 Year Storm 147 gpm 245 gpm100 Year Storm 206 gpm 309 gpm gpm – gallons per minute
  10. 10. Peak Flow (1 Acre Site) Grass Field Roof1 Year Storm 630 gpm 1,932 gpm2 Year Storm 942 gpm 2,424 gpm10 Year Storm 1,932 gpm 3,588 gpm25 Year Storm 2,556 gpm 4,266 gpm100 Year Storm 3,588 gpm 5,388 gpm gpm – gallons per minute
  11. 11. Change in Peak Runoff Flow Before and after Development300%225%150% 75% 0% m m m m m S tor S tor S tor S tor S tor ar r r r r Ye ea Ye a Ye a Ye a 1 2Y 10 25 0 10 Stormwater Effects of Urbanization
  12. 12. Image of Rain Falling
  13. 13. Pesticide IssuesAtrazine, Nitrogen, Phosphorous
  14. 14. Stormwater Mitigation– Collection runoff near the source– Slow it down– Soak it in– Filter it– Apply it to the landscape– Create habitats
  15. 15. Simple Rain garden
  16. 16. Bioswales Engineered Soils Underdrain
  17. 17. Location Plant Choices Rain gardens are often located at the end of a roof or drain spout. Choose plants based on the need for light and soil type. Depth Size Soil A Rain Garden usually A tpical mix is 65% A typical Rain Garden five to ten percent of sand, 15% top soil, is between four to the impervious surface 25% organic matter. eight inches deep. area.Rain Gardens
  18. 18. Rain Garden
  19. 19. BioswalesBurnsville, Minnesota
  20. 20. Native Vegetationwww.epa.gov/greenacres/ www.for-wild.org
  21. 21. Street Edges& Medians
  22. 22. Parking LotEdges
  23. 23. Parking LotIslands
  24. 24. DrivewayEdge
  25. 25. Neighborhoods
  26. 26. Rain GardenIndianapolis
  27. 27. Rain Garden Indianapolis - Fall Creek Parkway
  28. 28. Functional Landscapes
  29. 29. Thank You

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