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Green Infrastructure. Charlene LeBleu, ASLA AICP Associate Professor Landscape Architecture Auburn University. What is Green Infrastructure?. Portland.org. It is the Opposite of “Gray Infrastructure”. breeze-software.com. Elements of Gray Infrastructure systems include:. - PowerPoint PPT Presentation
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Green Infrastructure Green Infrastructure
Charlene LeBleu, ASLA AICPAssociate Professor
Landscape ArchitectureAuburn University
What is Green Infrastructure?What is Green Infrastructure?
Portland.org
It is the Opposite of “Gray Infrastructure”It is the Opposite of “Gray Infrastructure”
breeze-software.com
Elements of Gray Elements of Gray Infrastructure systems Infrastructure systems include:include:
Roadways and other paved surfaces
earthfirst.com
jerseygreen.org
Utilities and Communications
Water supply, treatment and disposal facilities
What is Green Infrastructure?What is Green Infrastructure?
greenbuildinglawupdate.com
Green Infrastructure ExamplesGreen Infrastructure Examples
Toronto, CA www. spacing.ca
Maintaining the Urban Forest
Preservation of Wildlife Habitat
Sand Hill Crane www.fnal.gov
Preservation of Riverside Corridors for People and Nature
indianatrails.org
dev.annarborcvb.org
Including Natural Filtration Systems such as this Urban Wetland or the installation of rain gardens
werc.usgs.gov
Rain Garden Boykin Community Center, Auburn, AL
What is Green Infrastructure?What is Green Infrastructure?
• An interconnected network of green space and other environmental assets that conserves the functions of the natural ecosystem and provides associated benefits to people.
Adapted from the Conservation Fund, Ed McMahon and Mark Benedict
What is Green Infrastructure?What is Green Infrastructure?
Green Infrastructure is our Nation's natural life support system
ase.tufts.edu
Green InfrastructureGreen Infrastructure• An interconnected green space network• Managed for natural resource value• Pre-identifies ecologically significant
lands and suitable development areas
lightfootforestry.files.wordpress.com
What is Green Infrastructure?What is Green Infrastructure?• A strategic approach to land
conservation at national, state, regional and local scales
• Encourages land use planning for natural processes, infrastructure and recreational needs of people
terga.net
Key Ideas of Green InfrastructureKey Ideas of Green Infrastructure• System hubs and linkages• Shapes urban form and provides
framework for growth• Encourages natural systems• Not something that is only nice to have but
a must have• Promotes and supports conservation action
Interconnected NetworksInterconnected NetworksWays to InterconnectWays to Interconnect
centralmidlands.org
Green Infrastructure Networks Consist of Hubs, Links and Sites
Interconnected NetworksInterconnected Networks
• Link open spaces together to function as an ecological whole
• This enables them to better: 1) remove pollutants from the air
2) carry and filter stormwater runoff
3) support diverse plant and wildlife species
Interconnected NetworksInterconnected Networks
• Wetlands• Woodlands• Waterways• Wildlife habitats• Parks• Greenways• Other open spaces
ohiogreenways.net
Ten Principles of Green InfrastructureTen Principles of Green Infrastructuretaken from taken from Green Infrastructure: Linking Landscape & Communities Green Infrastructure: Linking Landscape & Communities by Mark Benedict and Edward McMahon, 2006by Mark Benedict and Edward McMahon, 2006
1) Connectivity is key2) Context matters3) Grounded in science and land use theory
and practice4) Functions as a framework5) Planned and protected before
development6) A critical public investment
Ten Principles of Green InfrastructureTen Principles of Green Infrastructure
7) Benefits nature and people
8) Respects landowners and other stakeholders
9) Requires connections within and beyond the community
10) Requires long term planning & maintenance
Example of Green InfrastructureExample of Green Infrastructure
ozarksunbound.com
Ozark, Arkansas
Example--Columbus, GAExample--Columbus, GA
Columbus, GA has many parksColumbus, GA has many parks
Fall Line Trace, Columbus, GAFall Line Trace, Columbus, GA
• Part of the City's Rails-to-Trails project.
• The linear park stretches approximately 11 miles.
Fall Line Trace, Columbus, GAFall Line Trace, Columbus, GA
Benefits of Green InfrastructureBenefits of Green Infrastructure• Air Quality Improvement• Microclimate Modification• Stormwater Management• Enriched Habitat and Biodiversity• Recreational & Transportation Opportunities
gicardiff.eventbrite.com
Air Quality ImprovementAir Quality Improvement
The Chicago Urban Forest Climate Project
Chicago’s Urban Forest tricker.net
It is estimated that 11% of forest cover in Chicago sequesters 155,000 tons of carbon each year.
Microclimate ModificationMicroclimate Modification
• Nonporous surfaces absorb and hold heat
• Urban temperatures may be 8 – 10% hotter than surrounding countryside
borevitzlab.uchicago.edu
Microclimate ModificationMicroclimate Modification
Increasing green space by 5% and replacing dark roofs with lighter surfaces could lower overall temperatures 40F
borevitzlab.uchicago.edu
Urban Heat Island
U.S. EPA--Los Angeles
Microclimate ModificationMicroclimate Modification
Trees serve as windbreaks
thedailygreen.com
Stormwater ManagementStormwater Management• Hard surfaces
increase runoff and pollutants
• Increase in runoff causes flooding
city-data.com
Stormwater ManagementStormwater Management Green infrastructure
provides a low cost nonstructural approach to stormwater design including low impact development (LID).
metroplanning.org
Enriched Habitat & BiodiversityEnriched Habitat & Biodiversity
conservationphotos.com
• A variety of birds & animals indicates a healthy environment
• Wildlife move along rivers and streams
• Health of habitats depends on size and connectivity
Recreational and Transportation Recreational and Transportation OpportunitiesOpportunities
Riparian corridors can be used for recreation as well as flood control georgetown.org
warringah.ns.gov.au
Investing in Green InfrastructureInvesting in Green Infrastructure
Well planned green space increases property values & decreases the cost of public infrastructure
aslathedirt.file.wordpress.com
Investing in Green InfrastructureInvesting in Green Infrastructure
• Investing in green infrastructure can often be more cost effective than conventional public works projects.
Curitiba_barigui_park.org
Mobile Green StreetsMobile Green StreetsA Green Infrastructure Plan for Mobile, AlabamaA Green Infrastructure Plan for Mobile, Alabama
Charlene LeBleu, ASLA, AICP
Auburn University
Landscape Architecture
School of Architecture
College of Architecture Design and Construction
Project CollaboratorsProject Collaborators• Auburn University Landscape Architecture (PI)• Mississippi-Alabama Sea Grant Consortium
• Coastal Storms Program
• City of Mobile, Alabama• Greater Mobile Area Chamber of Commerce
Project CollaboratorsProject Collaborators• 2-D Design, LLC, Birmingham, AL• Downtown Mobile Alliance• Envision Coastal Alabama• Coastal Alabama Clean Water Partnership• Alabama Cooperative Extension System
MethodologyMethodology• Assessment of existing conditions• Case Study Analysis• On-site Design Charrette• Design concepts & graphics• Cost Analysis for Green Street Retrofits• Professional oversight• Template for technology transfer
LocationLocation
Downtown Mobile, AL City of Mobile, AL
Location: Project AreaLocation: Project Area
Located in downtown Mobile, AL
Existing ConditionsExisting Conditions
There is need for a site design that promotes infiltration!
Existing ConditionsExisting Conditions
rain gutter detachment poor infiltration results in localized flooding
Existing ConditionsExisting Conditions• Lunch-time thunderstorm
caused localized flooding on Dauphin Street.
• The Warehouse Market used sandbags to block water from entering the front entrance to the antique store.
"If I owned the building, I could sell it as waterfront property.”
Mobile Press RegisterFriday, Sept. 18, 2009 Dauphin Street in midtown Mobile, Ala.
Case Studies—Portland, OregonCase Studies—Portland, Oregon
Case Studies—Seattle, WashingtonCase Studies—Seattle, Washington
Who is building green streets?Who is building green streets?
• New York City, NY• Boston, MA• Chicago, IL• Jacksonville, FL• Atlanta, GA• Denver, CO• Auburn, AL
And many more cities across the nation!
Jacksonville, FL Green Streets
The CharretteThe Charrette
• Stakeholder and community input
• Collaboration and education
Adaptive Reuse of MaterialsAdaptive Reuse of Materials
BoatCistern
Possibilities for Green RetrofitsPossibilities for Green Retrofits
• Existing tree lined streets can be retrofitted for implementing bioretention
Urban Farm—Temporary Green SpaceUrban Farm—Temporary Green Space
Presentation to the City of Mobile, ALPresentation to the City of Mobile, AL
Selected Demonstration SiteSelected Demonstration Site
Proposed demonstration site.
Vacant Lot in Entertainment District.
Master Plan for Demonstration SiteMaster Plan for Demonstration Site
2-D Design, LLC
Master Plan for Demonstration SiteMaster Plan for Demonstration Site
2-D Design, LLC