Changing the Flow: How Low Impact Development Can Be Incorporated - - PowerPoint PPT Presentation

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Changing the Flow: How Low Impact Development Can Be Incorporated - - PowerPoint PPT Presentation

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Changing the Flow: How Low Impact Development Can Be Incorporated Into Your Project & Your Bottom Line Anne Reichman, Sustainable Cities Network James DeRoussel, Watershed Management Group Scott Bouchie, City of Mesa September 11, 2014

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Changing the Flow: How Low Impact Development Can Be Incorporated Into Your Project & Your Bottom Line

Anne Reichman, Sustainable Cities Network James DeRoussel, Watershed Management Group Scott Bouchie, City of Mesa September 11, 2014

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What Is SCN? What Does It Do?

Network local, municipal sustainability professionals Identify and share sustainability practices unique to our desert environment Identify questions, opportunities and solutions Foster community and regional sustainability progress Enable ASU to lend expertise and to play role in local solutions Goal – Seeing IMPACT at the local level, increasing community, regional and statewide sustainability “Alone we can do so little; together we can do so much”

― Helen Keller

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Participation is Key

  • Regular Workgroup Meetings:

Best Practices/Greenbuilding Green Infrastructure Solar & Energy Efficiency Water Resources

  • Regional meetings, Workshops & Events
  • Educational Opportunities
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Workgroup: Green Infrastructure

Focus on:

  • Tree and shade and the urban canopy
  • Stormwater management
  • Low impact development (LID)

techniques.

  • Goal: To standardize best practices in

the area of urban forestry and expand knowledge of green infrastructure across the Valley and state of Arizona. Activities:

  • Workshops, education sessions
  • Subgroups:
  • Specifications and Standards
  • Tree and Shade
  • Case Studies and Data

Aggregation

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James DeRoussel Re gistered Landscape Architect ISA Cer tified Arborist

Low Impact Development: Urban Opportunities and Benefits

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Mission:

WMG develops and implements community-based solutions to ensure the long-term prosperity of people and health of the environment. We provide people with the knowledge, skills, and resources for sustainable livelihoods.

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What is Low Impact Development?

  • WMG: “constructed

features that use living, natural systems to provide environmental services, such as capturing, cleaning and infiltrating stormwater; shading and cooling streets and buildings; and calming traffic.”

Photo: Dave Elkin, City of Portland www.watershedmg.org

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What is Low Impact Development?

  • Bioretention
  • Traffic Chicanes
  • Green Roofs
  • Stormwater BMPs
  • Permeable Paving
  • Preservation of

Natural Systems

www.watershedmg.org

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Why Low Impact Development?

www.watershedmg.org

  • Environmental Benefits
  • Flood Control
  • Reduce Urban Heat Island
  • Carbon Sequestration
  • Water Quality
  • Remove Pollutants
  • Reduced Energy Costs
  • Reduced Water

Transportation Costs

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Source: EPA www.watershedmg.org

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Increased Runoff and Flooding

www.watershedmg.org Source: EPA

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Increased Runoff and Flooding

www.watershedmg.org Source: EPA

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Increased Runoff and Flooding

www.watershedmg.org

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Decreased groundwater recharge

Source: Gelt, J. et al. 1999. Water in the Tucson Area: Seeking Sustainability, Water Resources Research Center, The University of Arizona

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Decreased groundwater recharge

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Non-Point Source Pollution

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Soils and Bioretention

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So Soil il critter critters s and and na nativ tive plants e plants LOVE stor VE storm m water ter

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Urban Heat Island

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Urban Heat Island

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Urban Heat Island

  • City of Phoenix Tree and Shade Initiative (2014)
  • 25% tree canopy coverage
  • 4.3° F temperature reduction
  • 7.9° F total cooling benefit
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Gr Gray I ay Infr nfrastr astructur ucture

Alters pre-development hydrology:

  • Increased runoff
  • Remote, large scale

retention/detention results in high maintenance and wasted space

  • Decreased infiltration
  • Downstream flooding
  • Erosion/Sedimentation

www.watershedmg.org

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Gr Green Infr een Infrastr astructur ucture

Mimics pre-development hydrology:

  • Local micro-retention
  • Decreases runoff
  • Increased infiltration and

local soil moisture

  • Reduced downstream

flooding and erosion

  • Reduced burden on public

storm water systems

Photo Credit: Rainwater Harvesting for Drylands and Beyond, Lancaster www.watershedmg.org

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Functional Goals of Green Infrastructure

  • Mi

Mimic mic Pr Pre-De Develop elopmen ment t Hy Hydr drolog

  • logy

y  Red educ uce e Flood looding ing

  •  Red

educ uce F e Flood looding ing an and d Har Harvest est Stor Storm m 

  •  Inc

Increa ease se Infiltr Infiltration tion an and d Lo Loca cal l Soil Soil Moistur Moisture e

  • Sup

Support Urb t Urban F Forest a st and Reduce Ur Urban Hea Heat Islan t Island 

  • Inc

Increa ease se Liva Livabili bility ty of

  • f Citi

Cities! es!

  • Dec

Decrea ease up se up-fr fron

  • nt an

t and li d lifet etime ime pr projec

  • ject

t co costs sts

Photo Credit: Rainwater Harvesting for Drylands and Beyond, Lancaster www.watershedmg.org

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Why Green Infrastructure?

  • Economic Benefits
  • Reduce energy

consumption

  • Extend life of

infrastructure

  • Reduce cost of

new construction

www.watershedmg.org

  • Livability / Quality of Life
  • Shade
  • Traffic Calming
  • Increased Property Values
  • Crime Reduction
  • Community Building
  • Environmental Benefits
  • Flood Control
  • Reduce Urban Heat Island
  • Carbon Sequestration
  • Water Quality
  • Remove Pollutants
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Costs of Green Infrastructure

Retrofitting:

  • G.I. retrofitting slightly more

costly than rehabilitating of conventional infrastructure

  • G.I. retrofitted incrementally

can spread cost over long period of time

  • Savings realized in long term
  • peration and maintenance

New Construction:

  • G.I. often 10-20% less

costly than conventional infrastructure

  • G.I. less costly in lifetime
  • peration and maintenance
  • Secondary and ‘trickle up’

economic benefits

Source: Natural Resources Defense Council

Rede edevelopment = Oppor elopment = Opportunity tunity

www.watershedmg.org

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Costs of Green Infrastructure

www.watershedmg.org

Why GI/LID makes $ sense:

  • Reduced street widths = less pavement, curb and gutter
  • Bioretention = fewer costly detention basins

= less piped conveyance = reduced burden on public stormwater system

  • Reduced lot sizes = reduced grading and building prep

= more lots available for sale

  • Preserving natural systems = reduced landscape costs

= increase property values

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Low Impact Development: Tools of the Trade

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Tools for Green Infrastructure Curb Cuts Curb Cuts

www.watershedmg.org

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Tools for Green Infrastructure Curb Cor Curb Cores es

www.watershedmg.org

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Tools for Green Infrastructure Str Street eet-side Basins side Basins

www.watershedmg.org

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Tools for Green Infrastructure Chicanes Chicanes

www.watershedmg.org

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Tools for Green Infrastructure Str Street eet-width r width reduction eduction

www.watershedmg.org

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Tools for Green Infrastructure Traf affic Cir fic Circles les

www.watershedmg.org

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Tools for Green Infrastructure Per ermea meable P ble Pavement ement

www.watershedmg.org

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Tools for Green Infrastructure Par arking Lot R king Lot Retr etrofits

  • fits

www.watershedmg.org

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Tools for Green Infrastructure Par arking Lot Des king Lot Design ign

www.watershedmg.org

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Tools for Green Infrastructure Bior Bioretention etention

www.watershedmg.org

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Tools for Green Infrastructure Bior Bioretention etention

www.watershedmg.org

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Arizona Low Impact Development Projects

 Ward 1 City Council Office (Tucson)  Primera Iglesia (Phoenix)

www.watershedmg.org

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Ward 1 Council Office Tucson, AZ

 Client/Project Owner:

City of Tucson

 Funding:

Tucson Water Grant

www.watershedmg.org

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Ward 1 Council Office Tucson, AZ

 Parking Lot Retro-fit  1,200 sq. ft. of asphalt removed,

replaced with bio-retention basins

 Preserved all existing parking

www.watershedmg.org

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Ward 1 Council Office Tucson, AZ

www.watershedmg.org

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Demolition

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Construction

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Community Workshop

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before After

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Demolition

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Construction

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before Community Workshop

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www.watershedmg.org

Ward 1 Council Office – Parking Lot Retrofit Tucson, AZ

Before After

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Primera Iglesia Phoenix, AZ

 Client/Project Owner:

Primera Iglesia Methodist Church

 Funding:

ADEQ Water Quality Grant for Green Infrastructure

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Primera Iglesia Phoenix, AZ

www.watershedmg.org

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Maintenance

 Establishment  3-5 years  5-10+ years

 Feature Stability  Soil Surface Protection  Plant Productivity  Human Interactions  Capacity Loss  Weed Prevention  Maintain Infiltration  Maintain Overflow

www.watershedmg.org

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Maintenance

www.watershedmg.org

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Utility Placement

www.watershedmg.org

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Protect Trees

www.watershedmg.org

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Right Plant, Right Place

www.watershedmg.org

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Sediment Management

www.watershedmg.org

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Design for maintenance

www.watershedmg.org

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Green Infrastructure: From Practice to Policy

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Tucson Commercial Rainwater Harvesting Ordinance

www.watershedmg.org

 Requires all new commercial

development to provide 50% of landscape irrigation via rainwater harvesting.

 Unanimously approved by Mayor

and Council in 2008

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Tucson Green Streets Policy Tucson , AZ

www.watershedmg.org

 Requires bio-retention of first 1/2” of

rainfall within the public right-of-way

 Applies to all new construction of

public roadways

Address Water Quality Address Flow Volumes

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Other Tucson Efforts Tucson , AZ

www.watershedmg.org

Pima County Detention/Retention Manual

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Other Tucson Efforts Tucson , AZ

www.watershedmg.org

Tucson-Pima County Low Impact Development Guidance Manual

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Other Tucson Efforts Tucson , AZ

www.watershedmg.org

Water Harvesting Assessment Toolbox

  • University of Arizona

Water Resources Research Center

  • http://wrrc.arizona.edu/DWHI/toolbox
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Other Tucson Efforts Tucson , AZ

www.watershedmg.org

http://watershedmg.org/download- green-infrastructure-manual

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…thank you!

Jame ames DeR DeRou

  • usse

ssel RLA RLA Pr Prog

  • gram

am Man Manage ger Water tershe shed d Man Manage gemen ment t Gr Grou

  • up

520 520-396 396-3266 3266 jder jderou

  • usse

ssel@ l@water tershe shedmg dmg.or .org

www.watershedmg.org

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Building A Sustainable Community

Scott Bouchie

Environmental & Sustainability Deputy Director City of Mesa, AZ

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Manage Stormwater

Work with nature to manage stormwater as close to its source as possible.

Infiltrate, filter, store and evaporate

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Beneficial Reuse

Treat stormwater as a resource rather than a waste product.

Stop channeling runoff elsewhere

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LID Added Value

  • Reduced stormwater runoff
  • Reduced flooding
  • Reduced pollutants
  • Improved aesthetics
  • Improved water quality
  • Improved groundwater recharge
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Fiesta District Streetscape

  • Create a unique identifiable area
  • Pedestrian friendly
  • Wider sidewalks, benches,

pedestrian lighting

  • Active urban destination
  • Transition from six to four lanes

(two in each direction)

  • Vibrant monument entry signs

and colored paving

  • Low impact development
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Fiesta District Streetscape

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Fiesta District Streetscape

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Fiesta District Streetscape

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LID Retrofit Pilot

  • Heart of downtown Mesa
  • Green infrastructure/low impact

development demonstration

  • Opportunity to evaluate and provide

demonstration to city staff

  • Curb cuts made to existing curbing
  • Educational workshop and installation by

volunteers

  • Partner with Watershed Management Group, Mesa Urban Garden and

Republica Empanada

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LID Retrofit Pilot

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LID Retrofit Pilot

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LID Retrofit Pilot

19’x150’

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LID Retrofit Pilot

Community Installation Workshop: Nov. 1

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LID Tool Kit

  • Desire to reduce polluted runoff
  • Little to no engineering standards for low impact

development

  • Offer variety of options for downtown areas and transit
  • riented development
  • Convert stormwater to a resource that supports the

creation of a high-quality, sustainably built environment

  • Creation of design standards, AKA Tool Kit
  • Working with Logan Simpson Design
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LID Tool Kit

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LID Tool Kit

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LID Tool Kit

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Scott Bouchie, City of Mesa scott.bouchie@mesaaz.gov 480-644-4336

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Contact

Anne Reichman, Program Manager ASU’s Sustainable Cities Network anne.reichman@asu.edu James DeRoussel RLA, Program Manager Watershed Management Group jderoussel@watershedmg.org Scott Bouchie, Deputy Director, Environmental & Sustainability City of Mesa scott.bouchie@mesaaz.gov