Creating Vibrant
Communities
Green Infrastructure for Engaging
Communities
Elizabeth Balderston
August 13, 2013
Spirit in Service for Vibrant
Communities
Elizabeth
Balderston
Green Infrastructure for
Engaging Communities
Low Impact Development
Creating Vibrant
Communities Liliana Bozic
Elizabeth Balderston
August 2013
 LID Low Impact Development
 SUDS Sustainable Urban Drainage Systems
 WSUD Water Sensitive Urban Design
 BMP Best Mana...
LID is an approach to land development that works
with nature to manage stormwater as close to its
source as possible
Key ...
Today’s challenges:
 Urban growth impacts watershed health
 Limited effectiveness of conventional drainage
practices
 R...
 Land development alters the natural balance
between runoff and natural absorption
• greater amounts of impervious
surfac...
 Limited pollutant removal
• Effective for large sediment particles only
• Limited nutrient removal
 No runoff volume re...
New regulation requires better stormwater
quality treatment
Stormwater rate and volume control
targets are established t...
12
Watershed
Drinking
Water
Wastewater
People
Bow &
Elbow
River
Land Use
•Source protection
•Watershed Yield (Glaciers)
•W...
Bioswales / Vegetated Swales
Shallow and deep infiltration
Low susceptibility to cold climate
Treatment
Porous pavement
Sh...
Plan at Site, Neighborhood, and Watershed Level
 A variety of easy and practical, cost-saving techniques to
manage stormwater runoff close to its source (where rain
fall...
≠
Source: www.rainwaterpillow.com
Courtesy Cultec
 Stormwater oriented low impact development strategies contribute
to Vibrant Communities on multiple fronts:
• financial
...
Low Impact Development is a creative design
strategy that informs development opportunities on
how to better connect with ...
Next lecture: Tuesday September 17
Mark Anielski
Creating Flourishing Communities of
Wellbeing and Happiness
www.urbansyst...
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
Green Infrastructure for Engaging Communities
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Green Infrastructure for Engaging Communities

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What is low impact development (LID) and how can it be used to make our communities more engaging? Elizabeth Balderston is a consultant at Urban Systems and has been dedicated to making environmental sustainability and community enhancement top priorities throughout her career. Elizabeth will outline the benefits of LID from social, ecological and financial points-of-view. Her career as a landscape architect and urban designer have made her an expert in the aesthetic and functional integration of built works with green infrastructure. Focusing on a humanistic perspective, she illustrates how LID can make communities more vibrant, livable and safe for their residents.

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  • There are a number of interdependencies in how we use water in Calgary. We rely on our watershed to sustain the Bow and Elbow Rivers. We extract water for our potable use and we treat wastewater to a high standard and use the rivers to assimilate the final pollutants. The people change the landscape and the land use and this changes the nature of the rainfall that makes it back to the river as stormwater.All of these dependencies make it easy to see where climate change in this region will affect our water resources the most.NEXT SLIDE
  • Biophilia – connection to nature and water
  • With this definition in mind we can easily see how LID may impact other areas of development such as: transportation, energy, urban formIt is important to promote the social dimension of LID and how it promotes a vibrant community.
  • Efficiencies in transportation, energy, urban form, hillside development
  • Stormwater integrated into site development as an amenity
  • Multi-functional spaces for employment and enjoyment
  • Re-use of on site materials
  • Designing with the environment and the land – swales, no retaining structures, no plastics – natural materials
  • Green Infrastructure for Engaging Communities

    1. 1. Creating Vibrant Communities Green Infrastructure for Engaging Communities Elizabeth Balderston August 13, 2013
    2. 2. Spirit in Service for Vibrant Communities
    3. 3. Elizabeth Balderston Green Infrastructure for Engaging Communities
    4. 4. Low Impact Development Creating Vibrant Communities Liliana Bozic Elizabeth Balderston August 2013
    5. 5.  LID Low Impact Development  SUDS Sustainable Urban Drainage Systems  WSUD Water Sensitive Urban Design  BMP Best Management Practices  SCP Source Control Practices
    6. 6. LID is an approach to land development that works with nature to manage stormwater as close to its source as possible Key principles:  Preservation of natural soil infiltrating potential;  Small scale integrated controls dispersed throughout the site;  Minimizing and disconnecting impervious areas;  Prolonging stormwater runoff flow paths and times  Creating multi-functional landscapes.
    7. 7. Today’s challenges:  Urban growth impacts watershed health  Limited effectiveness of conventional drainage practices  Regulatory requirements  Climate change
    8. 8.  Land development alters the natural balance between runoff and natural absorption • greater amounts of impervious surface • increased rates and volumes of surface runoff • increased susceptibility of eroded land to flooding, • damage to public and private property • in-stream and wetland habitat degradation
    9. 9.  Limited pollutant removal • Effective for large sediment particles only • Limited nutrient removal  No runoff volume reduction  Concerns with winter operation  High maintenance cost
    10. 10. New regulation requires better stormwater quality treatment Stormwater rate and volume control targets are established through watershed management planning process
    11. 11. 12 Watershed Drinking Water Wastewater People Bow & Elbow River Land Use •Source protection •Watershed Yield (Glaciers) •Water resources •Water rights •Water Quality •Pollutants •Collection infrastructure •Total loadings •Assimilative capacity •Supply and demand •Service levels •Treatment Infrastructure •Drinking water quality •Distribution infrastructure •Imperviousness •hydrology •Storm water infrastructure Storm Water •Urban runoff
    12. 12. Bioswales / Vegetated Swales Shallow and deep infiltration Low susceptibility to cold climate Treatment Porous pavement Shallow and deep infiltration Low to high susceptibility to cold climate Treatment Green Roofs Shallow infiltration Low susceptibility to cold climate Volume reduction Rainwater reuse Volume reduction
    13. 13. Plan at Site, Neighborhood, and Watershed Level
    14. 14.  A variety of easy and practical, cost-saving techniques to manage stormwater runoff close to its source (where rain falls) while preserving and protecting natural landscape features Principles of Low Impact Development
    15. 15.
    16. 16. Source: www.rainwaterpillow.com
    17. 17. Courtesy Cultec
    18. 18.  Stormwater oriented low impact development strategies contribute to Vibrant Communities on multiple fronts: • financial  infrastructure – construction, repairs, maintenance, operation  natural and environmental disasters  environmental services  property values and development costs • community resources  community health  delight / aesthetics  education  community interaction
    19. 19. Low Impact Development is a creative design strategy that informs development opportunities on how to better connect with the surrounding energetic, ecological and social patterns to promote integrative sustainability. Key principles:  Designing with the environment and the land  Give priority to social dimensions and environmental protection  Do we need it? Can we maintain it? Is there a solution requiring fewer interventions? Is it local, integrated and decentralized?
    20. 20. Next lecture: Tuesday September 17 Mark Anielski Creating Flourishing Communities of Wellbeing and Happiness www.urbansystems.ca

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