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Restoring Water Balance:  From the Corner Lot to the Watershed Pallavi Kalia Mande, Charles River Watershed Association Je...
Restoring Water Balance:  From the Corner Lot to the Watershed
Charles River Watershed Association Building Blue Cities:   Environmentally Sensitive Urban Development Pallavi Kalia Mand...
<ul><li>Who we are and what we do </li></ul><ul><li>The Blue Cities approach to environmental sustainability </li></ul><ul...
<ul><li>Environmental Science and Advocacy Organization founded in  1965 </li></ul><ul><li>Mission: To use science, advoca...
Impacts   of   Urbanization on Rivers <ul><li>Water quality </li></ul><ul><li>Sediments </li></ul><ul><li>Floods and low f...
Standard Urban Development   <ul><li>Pave </li></ul><ul><li>Pipe </li></ul><ul><li>Pump </li></ul>Charles River Watershed ...
Impacts   of   Urbanization on Natural Water Cycle Charles River Watershed Association In Massachusetts, average annual  r...
CRWA’s Blue Cities Initiative Charles River Watershed Association Blue Development  is a water-oriented approach to urban ...
CRWA’s Blue Cities Initiative <ul><ul><li>Restore hydrologic integrity  </li></ul></ul><ul><ul><li>Water centric planning ...
<ul><li>Make this . . . </li></ul>CRWA’s Blue Cities Initiative Charles River Watershed Association … function like this! ...
Charles River Watershed Association Blue Cities Guide Available at: www.charlesriver.org/projects/docs/BlueCitiesGuide.pdf
Public realm/neighborhood scale approaches <ul><li>Green streets and Greenways </li></ul><ul><li>Integrate stormwater mana...
Large site scale approaches <ul><li>Parking lot retrofits </li></ul><ul><li>Courtyard retrofits </li></ul><ul><li>Permeabl...
Residential/ small site scale approaches <ul><li>Cisterns/  rainbarrels </li></ul><ul><li>Rain gardens </li></ul><ul><li>S...
Multiple benefits of green infrastructure <ul><li>Reduced flooding </li></ul><ul><li>Increased recharge </li></ul><ul><li>...
  Blue Cities Analysis Process and Design Approach Existing Conditions Analysis and Data Compilation Neighborhood Assessme...
Building Blue Cities <ul><li>Creating Partnerships </li></ul><ul><ul><li>Engaging cities, towns, state, universities / ins...
 
Bellingham Subwatershed Restoration Project Charles River Watershed Association Water Quality Management Planning Grant aw...
Bellingham Subwatershed Restoration Project The Team:
Project Justification New  Stormwater  Regulations Water  Quantity Water  Quality Bellingham Subwatershed Restoration Proj...
2011 NPDES MS4 Permit Source: EPA Website
2011 NPDES MS4 Permit
<ul><li>Goal: Reduce phosphorus loading by 65% to Charles River (56% for Bellingham) </li></ul><ul><li>Regulates public an...
EPA Designated Discharge Permit <ul><li>Baseline Standards </li></ul>
EPA Residually Designated Discharge Permit <ul><li>Phosphorus Reduction Requirements </li></ul>
<ul><li>To create a  subwatershed restoration plan  that addresses nonpoint source pollution problems and restores water f...
<ul><li>Subwatershed Selection </li></ul><ul><li>Existing Conditions Assessment </li></ul><ul><li>Subwatershed Restoration...
Bellingham Subwatershed Restoration Project <ul><li>Nine locations (in yellow) in six drainage areas were selected for BMP...
<ul><li>Read  (and re-read) regulations </li></ul><ul><li>Identify  existing conditions: GIS mapping and field observation...
Bellingham Subwatershed Restoration Project <ul><li>BMP Design Process </li></ul>Soils Cover  Type Treatment  Depth Phosph...
Bellingham Subwatershed Restoration Project <ul><li>Example Site – DD1 </li></ul><ul><li>Commercial Plaza </li></ul>7.6 ac...
Bellingham Subwatershed Restoration Project <ul><li>Example Site – DD1 Commercial Plaza </li></ul>
Bellingham Subwatershed  Restoration Project <ul><li>Example Site: O18 </li></ul>
Bellingham Subwatershed Restoration Project <ul><li>Example Site – O18B Town Common </li></ul>2.3 acres paved Existing P L...
018B-Town Common Retrofit Before and after visualizations for proposed rain garden
<ul><li>EPA Regulations – Draft means room for interpretation </li></ul><ul><li>BMP design – Not a “one size fits all” app...
Lesson Learned: Municipal Coordination Bellingham Subwatershed Restoration Project
Optimization Scenarios (% Ph Removed) <ul><li>Scenario 0  – Best Professional Judgment Scenario </li></ul><ul><li>Scenario...
Optimization Scenarios (BMP Type and Costs) Charles River Watershed Association $ 467,715 $ 264,750 $ 212,540
Peabody Square Pilot Demonstration Project
<ul><li>Project Overview </li></ul><ul><li>Green Infrastructure Strategies </li></ul><ul><ul><li>Bioretention </li></ul></...
Peabody Square - Overview Dorchester Avenue Corridor Peabody Square
<ul><li>Create a safe, attractive, and accessible environment for all users - a complete street concept </li></ul><ul><li>...
<ul><li>Nitsch Engineering, Inc. - Transportation/Traffic Engineer </li></ul><ul><li>Carol R. Johnson Associates, Inc. - L...
Peabody Square - Overview <ul><li>Green Street Pilot Demonstration Project </li></ul><ul><li>MassDEP grant </li></ul><ul><...
Peabody Square - Overview <ul><li>Reconfiguration Options </li></ul>Star Island X Scheme Scheme 1 Scheme 2
Peabody Square - Overview <ul><li>Selected Alternative </li></ul>Graphic:  Carol R. Johnson, Associates, Inc.
<ul><li>Landscape / Surface  </li></ul><ul><li>Characterization </li></ul>Peabody Square - Overview Plaza/Green Space Roof...
Peabody Square - BMP Evaluation Charles River Watershed Association
Peabody Square - BMP Evaluation Charles River Watershed Association
Green Infrastructure Strategies <ul><li>Bioretention </li></ul><ul><ul><li>Direct stormwater runoff from street gutter </l...
Green Infrastructure Strategies <ul><li>Bioretention </li></ul>Bioretention Preparation <ul><li>Runoff collected by shallo...
Green Infrastructure Strategies <ul><li>Bioretention </li></ul>Completed Bioretention <ul><li>Benefits include: </li></ul>...
Peabody Square – Green Infrastructure Strategies Recharge Trench <ul><li>Runoff from adjacent parking lot directed through...
Green Infrastructure Strategies <ul><li>Porous Pavement </li></ul><ul><li>Pervious concrete base installation </li></ul><u...
Green Infrastructure Strategies <ul><li>Pervious concrete base installation </li></ul>Porous Pavement <ul><li>Pervious con...
Green Infrastructure Strategies <ul><li>Porous Pavement </li></ul><ul><li>Completed Porous Pavement </li></ul><ul><li>Bene...
Peabody Square – Green Infrastructure Strategies <ul><li>Landscaped planters </li></ul>Greening <ul><li>Landscaping </li><...
Peabody Square – Lessons Learned <ul><li>Engage the community </li></ul><ul><li>Identify maintenance responsibilities </li...
Peabody Square- Visualizations <ul><ul><li>East Plaza: Rain Garden & Stormwater Planters </li></ul></ul>Charles River Wate...
Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
Restoring water balance requires collaboration at all scales, from the corner lot to the watershed.
Questions? Pallavi Kalia Mande, Charles River Watershed Association www.crwa.org Jennifer Johnson, Nitsch Engineering, Inc...
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Restoring Water Balance

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Restoring Water Balance

  1. 1. Restoring Water Balance: From the Corner Lot to the Watershed Pallavi Kalia Mande, Charles River Watershed Association Jennifer Johnson, Nitsch Engineering, Inc. Cheeta Soga, Nitsch Engineering, Inc.
  2. 2. Restoring Water Balance: From the Corner Lot to the Watershed
  3. 3. Charles River Watershed Association Building Blue Cities: Environmentally Sensitive Urban Development Pallavi Kalia Mande Urban Restoration Specialist Charles River Watershed Association (www.charlesriver.org)
  4. 4. <ul><li>Who we are and what we do </li></ul><ul><li>The Blue Cities approach to environmental sustainability </li></ul><ul><li>Case studies </li></ul><ul><li>Ongoing Partnerships for building blue cities </li></ul>Building Blue Cities: Environmentally Sensitive Urban Development Charles River Watershed Association
  5. 5. <ul><li>Environmental Science and Advocacy Organization founded in 1965 </li></ul><ul><li>Mission: To use science, advocacy and the law to protect, preserve and enhance the Charles River and its watershed </li></ul>Charles River Watershed Association Charles River Watershed Association
  6. 6. Impacts of Urbanization on Rivers <ul><li>Water quality </li></ul><ul><li>Sediments </li></ul><ul><li>Floods and low flows </li></ul><ul><li>Groundwater </li></ul><ul><li>Ecosystem and habitat </li></ul><ul><li>Algal blooms </li></ul>Charles River Watershed Association
  7. 7. Standard Urban Development <ul><li>Pave </li></ul><ul><li>Pipe </li></ul><ul><li>Pump </li></ul>Charles River Watershed Association Standard Urban Problems <ul><li>Floods </li></ul><ul><li>Water table changes </li></ul><ul><li>Degraded rivers and streams </li></ul><ul><li>Hot, noisy urban canyons </li></ul>
  8. 8. Impacts of Urbanization on Natural Water Cycle Charles River Watershed Association In Massachusetts, average annual runoff increases from 4.2” to 23” and groundwater recharge decreases from 21” to 6.3”.
  9. 9. CRWA’s Blue Cities Initiative Charles River Watershed Association Blue Development is a water-oriented approach to urban development and redevelopment that promote designs for the built environment that engages with every stage of the water cycle. Going beyond “green” building, “blue” development embraces green infrastructure design with the aim of restoring the natural water cycle in the built environment
  10. 10. CRWA’s Blue Cities Initiative <ul><ul><li>Restore hydrologic integrity </li></ul></ul><ul><ul><li>Water centric planning and design to mimic natural hydrology </li></ul></ul><ul><ul><li>Redesign cities and town to incorporate “green infrastructure” </li></ul></ul><ul><ul><li>Build on links to open space, public health and public realm needs </li></ul></ul>Charles River Watershed Association Pre-development Post-development
  11. 11. <ul><li>Make this . . . </li></ul>CRWA’s Blue Cities Initiative Charles River Watershed Association … function like this! Try to make this…
  12. 12. Charles River Watershed Association Blue Cities Guide Available at: www.charlesriver.org/projects/docs/BlueCitiesGuide.pdf
  13. 13. Public realm/neighborhood scale approaches <ul><li>Green streets and Greenways </li></ul><ul><li>Integrate stormwater management with existing open space </li></ul><ul><li>Stream daylighting </li></ul><ul><li>Regional retention and detention systems </li></ul>Charles River Watershed Association
  14. 14. Large site scale approaches <ul><li>Parking lot retrofits </li></ul><ul><li>Courtyard retrofits </li></ul><ul><li>Permeable pavement </li></ul><ul><li>Constructed wetlands and other retention and detention systems </li></ul>Charles River Watershed Association
  15. 15. Residential/ small site scale approaches <ul><li>Cisterns/ rainbarrels </li></ul><ul><li>Rain gardens </li></ul><ul><li>Stormwater planters </li></ul>Charles River Watershed Association
  16. 16. Multiple benefits of green infrastructure <ul><li>Reduced flooding </li></ul><ul><li>Increased recharge </li></ul><ul><li>Reduced ‘heat island’ effect </li></ul><ul><li>Aesthetic, pedestrian and public safety improvements </li></ul><ul><li>Improved conditions in the River </li></ul><ul><li>Public support for sustainable communities </li></ul>Charles River Watershed Association
  17. 17. Blue Cities Analysis Process and Design Approach Existing Conditions Analysis and Data Compilation Neighborhood Assessment and Survey Issues and Opportunities Analysis Concept Design and Visualization Recommendations for Green Infrastructure Retrofits Charles River Watershed Association
  18. 18. Building Blue Cities <ul><li>Creating Partnerships </li></ul><ul><ul><li>Engaging cities, towns, state, universities / institutions </li></ul></ul><ul><ul><li>Grassroots advocacy and work with community groups </li></ul></ul><ul><li>Public Education, Site Visits, Workshops </li></ul><ul><ul><li>Public charettes and forums </li></ul></ul><ul><ul><li>Target audience workshops </li></ul></ul><ul><ul><li>Site visit to University of New Hampshire Stormwater Center </li></ul></ul><ul><li>Building Demonstration Projects </li></ul><ul><ul><li>Waltham Watch Factory </li></ul></ul><ul><ul><li>Everett Street Greening Pilot Project </li></ul></ul><ul><ul><li>Chester Avenue, Chelsea </li></ul></ul><ul><ul><li>Peabody Square , Dorchester </li></ul></ul><ul><ul><li>Parmenter School, Franklin MA </li></ul></ul>Charles River Watershed Association
  19. 20. Bellingham Subwatershed Restoration Project Charles River Watershed Association Water Quality Management Planning Grant awarded by DEP to Town of Bellingham
  20. 21. Bellingham Subwatershed Restoration Project The Team:
  21. 22. Project Justification New Stormwater Regulations Water Quantity Water Quality Bellingham Subwatershed Restoration Project NPDES MS4 Permit EPA Designated Discharge Permit
  22. 23. 2011 NPDES MS4 Permit Source: EPA Website
  23. 24. 2011 NPDES MS4 Permit
  24. 25. <ul><li>Goal: Reduce phosphorus loading by 65% to Charles River (56% for Bellingham) </li></ul><ul><li>Regulates public and private sites with 2+ acres of impervious surface </li></ul>EPA Designated Discharge Permit <ul><ul><li>Milford, Bellingham, and Franklin </li></ul></ul>
  25. 26. EPA Designated Discharge Permit <ul><li>Baseline Standards </li></ul>
  26. 27. EPA Residually Designated Discharge Permit <ul><li>Phosphorus Reduction Requirements </li></ul>
  27. 28. <ul><li>To create a subwatershed restoration plan that addresses nonpoint source pollution problems and restores water function in a portion of Bellingham that lies within the Charles River watershed. </li></ul><ul><li>The plan will evaluate various on-site and regional stormwater treatment options and select preferred restoration sites that enable Bellingham to significantly improve stormwater management at the least cost with the maximum environmental benefit. </li></ul>Bellingham Subwatershed Restoration Project <ul><li>Project Goals </li></ul>
  28. 29. <ul><li>Subwatershed Selection </li></ul><ul><li>Existing Conditions Assessment </li></ul><ul><li>Subwatershed Restoration Planning </li></ul><ul><li>Outreach and Education </li></ul>Bellingham Subwatershed Restoration Project <ul><li>Project Outline </li></ul>
  29. 30. Bellingham Subwatershed Restoration Project <ul><li>Nine locations (in yellow) in six drainage areas were selected for BMP retrofits. </li></ul>
  30. 31. <ul><li>Read (and re-read) regulations </li></ul><ul><li>Identify existing conditions: GIS mapping and field observations </li></ul><ul><li>Delineate drainage areas </li></ul><ul><li>Calculate baseline phosphorus (P) loading and target P load reduction </li></ul><ul><li>Select priority drainage areas for best management practices (BMPs) using specific criteria </li></ul><ul><li>Design site specific BMPs to achieve target P load reduction </li></ul>Bellingham Subwatershed Restoration Project <ul><li>Technical Process Overview </li></ul>
  31. 32. Bellingham Subwatershed Restoration Project <ul><li>BMP Design Process </li></ul>Soils Cover Type Treatment Depth Phosphorus Reduction
  32. 33. Bellingham Subwatershed Restoration Project <ul><li>Example Site – DD1 </li></ul><ul><li>Commercial Plaza </li></ul>7.6 acres roof + parking Wetland Existing P Load = 13.9 lb/yr Target Reduction = 7.1 lb/yr (50.9%) Bioretention Basins & Infiltration Trenches
  33. 34. Bellingham Subwatershed Restoration Project <ul><li>Example Site – DD1 Commercial Plaza </li></ul>
  34. 35. Bellingham Subwatershed Restoration Project <ul><li>Example Site: O18 </li></ul>
  35. 36. Bellingham Subwatershed Restoration Project <ul><li>Example Site – O18B Town Common </li></ul>2.3 acres paved Existing P Load = 6.3 lb/yr Target Reduction = 3.7 lb/yr (58.1%) Bioretention Basin
  36. 37. 018B-Town Common Retrofit Before and after visualizations for proposed rain garden
  37. 38. <ul><li>EPA Regulations – Draft means room for interpretation </li></ul><ul><li>BMP design – Not a “one size fits all” approach </li></ul><ul><li>Town considerations </li></ul><ul><ul><li>Compiling existing data </li></ul></ul><ul><ul><li>Regulatory conflicts & inter-departmental coordination </li></ul></ul><ul><ul><li>Enforcement </li></ul></ul><ul><ul><li>Financing </li></ul></ul><ul><li>Regional vs. localized BMP siting - Getting the most bang for your buck </li></ul>Bellingham Subwatershed Restoration Project <ul><li>Lessons Learned </li></ul>
  38. 39. Lesson Learned: Municipal Coordination Bellingham Subwatershed Restoration Project
  39. 40. Optimization Scenarios (% Ph Removed) <ul><li>Scenario 0 – Best Professional Judgment Scenario </li></ul><ul><li>Scenario 1 – Meet removal target at the lowest cost while varying BMP treatment volume. </li></ul><ul><li>Scenario 2 – Meet removal target at the lowest cost while varying BMP type and treatment volume. (BMP types were limited to what would work on each site given a basic review of the site for soil type, depth to water table, and other relevant parameters). </li></ul>Charles River Watershed Association
  40. 41. Optimization Scenarios (BMP Type and Costs) Charles River Watershed Association $ 467,715 $ 264,750 $ 212,540
  41. 42. Peabody Square Pilot Demonstration Project
  42. 43. <ul><li>Project Overview </li></ul><ul><li>Green Infrastructure Strategies </li></ul><ul><ul><li>Bioretention </li></ul></ul><ul><ul><li>Recharge Trench </li></ul></ul><ul><ul><li>Porous Pavement </li></ul></ul><ul><ul><li>Greening </li></ul></ul><ul><li>Lessons Learned </li></ul>Outline
  43. 44. Peabody Square - Overview Dorchester Avenue Corridor Peabody Square
  44. 45. <ul><li>Create a safe, attractive, and accessible environment for all users - a complete street concept </li></ul><ul><li>Revitalize square to promote commercial and community activity </li></ul><ul><li>Simplify roadway configuration and reduce points of conflict </li></ul><ul><li>Enhance sidewalks and provide pedestrian-scale amenities </li></ul><ul><li>Provide for placemaking and an area gateway … a more inviting destination </li></ul><ul><li>Celebrate the area’s history </li></ul>Peabody Square - Overview <ul><li>Core Project Needs </li></ul>
  45. 46. <ul><li>Nitsch Engineering, Inc. - Transportation/Traffic Engineer </li></ul><ul><li>Carol R. Johnson Associates, Inc. - Landscape Architect </li></ul><ul><li>Lin Associates, Inc. - Structural Engineer </li></ul>Peabody Square - Overview <ul><li>Design Team: </li></ul>City of Boston Team: <ul><li>Patrick Hoey, Project Manager – Boston Transportation Department (BTD) </li></ul><ul><li>Vineet Gupta - Director of Policy and Planning, BTD </li></ul><ul><li>Para Jayasinghe, PE - City Engineer, Boston Public Works Department </li></ul>Project Partners: <ul><li>Charles River Watershed Association </li></ul><ul><li>St. Mark’s Area Main Street Non-Profit Neighborhood Group </li></ul>
  46. 47. Peabody Square - Overview <ul><li>Green Street Pilot Demonstration Project </li></ul><ul><li>MassDEP grant </li></ul><ul><li>Partnership of City with Charles River Watershed Association </li></ul><ul><li>Site selection review </li></ul><ul><li>Conditions Assessment </li></ul><ul><li>BMP selection/streetscape concept </li></ul><ul><li>Educational outreach </li></ul>
  47. 48. Peabody Square - Overview <ul><li>Reconfiguration Options </li></ul>Star Island X Scheme Scheme 1 Scheme 2
  48. 49. Peabody Square - Overview <ul><li>Selected Alternative </li></ul>Graphic: Carol R. Johnson, Associates, Inc.
  49. 50. <ul><li>Landscape / Surface </li></ul><ul><li>Characterization </li></ul>Peabody Square - Overview Plaza/Green Space Roof Sidewalk Parking Restricted Access Road Street Crossing Charles River Watershed Association
  50. 51. Peabody Square - BMP Evaluation Charles River Watershed Association
  51. 52. Peabody Square - BMP Evaluation Charles River Watershed Association
  52. 53. Green Infrastructure Strategies <ul><li>Bioretention </li></ul><ul><ul><li>Direct stormwater runoff from street gutter </li></ul></ul><ul><li>Recharge Trench </li></ul><ul><li>Porous Pavement </li></ul><ul><ul><li>System redundancy </li></ul></ul><ul><li>Greening </li></ul><ul><ul><li>Lawns and plantings </li></ul></ul>Graphic: Carol R. Johnson, Associates, Inc. Low Impact/ Best Management Practices
  53. 54. Green Infrastructure Strategies <ul><li>Bioretention </li></ul>Bioretention Preparation <ul><li>Runoff collected by shallow catch basin with sump and directed to bioretention </li></ul><ul><li>Runoff allowed to stage up and recharge into underlying soils </li></ul><ul><li>Excess runoff overflows from a raised grated structure and directed to City’s storm drain system </li></ul>
  54. 55. Green Infrastructure Strategies <ul><li>Bioretention </li></ul>Completed Bioretention <ul><li>Benefits include: </li></ul><ul><li>Runoff volume reduction </li></ul><ul><li>Runoff rate reduction </li></ul><ul><li>Groundwater recharge </li></ul><ul><li>Natural treatment of runoff </li></ul><ul><li>Enhances the beauty of public spaces </li></ul><ul><li>Provides cost-effective way of treating stormwater </li></ul>
  55. 56. Peabody Square – Green Infrastructure Strategies Recharge Trench <ul><li>Runoff from adjacent parking lot directed through curb openings to stone trench for pretreatment </li></ul><ul><li>Excess flow sheets over stone trench to planting bed </li></ul><ul><li>Benefits include: </li></ul><ul><li>Runoff volume reduction </li></ul><ul><li>Runoff rate reduction </li></ul><ul><li>Groundwater recharge </li></ul><ul><li>Natural treatment of runoff </li></ul>
  56. 57. Green Infrastructure Strategies <ul><li>Porous Pavement </li></ul><ul><li>Pervious concrete base installation </li></ul><ul><li>Permeable pavers installed atop pervious concrete base </li></ul><ul><li>Runoff infiltrates through spaces between the pavers to the underlying pervious concrete base and soil below </li></ul>
  57. 58. Green Infrastructure Strategies <ul><li>Pervious concrete base installation </li></ul>Porous Pavement <ul><li>Pervious concrete base testing </li></ul>
  58. 59. Green Infrastructure Strategies <ul><li>Porous Pavement </li></ul><ul><li>Completed Porous Pavement </li></ul><ul><li>Benefits include: </li></ul><ul><li>Runoff volume reduction </li></ul><ul><li>Runoff rate reduction </li></ul><ul><li>Groundwater recharge </li></ul><ul><li>Treatment of runoff </li></ul><ul><li>Enhances the beauty of public spaces </li></ul><ul><li>Reduces the need for traditional stormwater infrastructure </li></ul>
  59. 60. Peabody Square – Green Infrastructure Strategies <ul><li>Landscaped planters </li></ul>Greening <ul><li>Landscaping </li></ul>
  60. 61. Peabody Square – Lessons Learned <ul><li>Engage the community </li></ul><ul><li>Identify maintenance responsibilities </li></ul><ul><ul><li>Public/private partnership </li></ul></ul><ul><li>Resolve resistance </li></ul><ul><ul><li>Underground utilities </li></ul></ul><ul><ul><li>Possible system failure </li></ul></ul><ul><li>Collaborate with and educate stakeholders </li></ul><ul><li>Encourage innovative design and publicize the benefits </li></ul>Vacuum sweeping
  61. 62. Peabody Square- Visualizations <ul><ul><li>East Plaza: Rain Garden & Stormwater Planters </li></ul></ul>Charles River Watershed Association
  62. 63. Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
  63. 64. Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
  64. 65. Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
  65. 66. Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
  66. 67. Peabody Square – The Completed Project <ul><li>Before and After </li></ul>
  67. 68. Restoring water balance requires collaboration at all scales, from the corner lot to the watershed.
  68. 69. Questions? Pallavi Kalia Mande, Charles River Watershed Association www.crwa.org Jennifer Johnson, Nitsch Engineering, Inc. Cheeta Soga, Nitsch Engineering, Inc. www.nitscheng.com

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