Low Impact Development Practices For Stormwater in our Semi-Arid - - PowerPoint PPT Presentation

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Low Impact Development Practices For Stormwater in our Semi-Arid - - PowerPoint PPT Presentation

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Low Impact Development Practices For Stormwater in our Semi-Arid Environment: A Regional Dialogue March 15, 2011 Joel D. Valdez Main Library Basement Conference Room 101 N. Stone Avenue, Tucson, AZ 85701 8:00 a.m. 4:00 p.m. From BMPs

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Low Impact Development Practices For Stormwater in our Semi-Arid Environment: A Regional Dialogue March 15, 2011

Joel D. Valdez Main Library

Basement Conference Room 101 N. Stone Avenue, Tucson, AZ 85701

8:00 a.m. – 4:00 p.m.

“From BMPs to LID to Green Infrastructure – Case Studies”

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Going Green?

1. Stantec and Green Infrastructure: An Overview 2. Gray to Green for the 2010 Olympics 3. Stantec’s Green Roof 4. Stroudwater Landing 5. Meadow Walk at Lynnfield 6. Stantec R&D Efforts and Research Partners

“From BMPs to LID to Green Infrastructure – Case Studies” Let’s Look Into It!

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Stantec’s Structural Solutions

Bioretention Cistern Constructed Wetland Detention Gallery Detention Pond Green Roof Infiltration Basin Infiltration Trench Porous Pavement Retention Basin Rain Barrel Rain Garden Sand Filter Vegetated Buffer Vegetated Swale Wet Pond

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Non‐Structural Solutions

  • involve the public
  • better planning

– no new issues – get it right from “day one” – disconnect & reduce impervious areas

  • more maintenance

– street & storm drains – green BMPs

  • dumping control
  • illicit connections
  • stormwater reuse

Stantec’s Rebecca Jenkins and 5th Graders From Norman E. Day School Building Their “Living Lab” Rain Garden in Westford, MA

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Gray Infrastructure

Southeast False Creek: Site of Olympic Village and Eventual Home for 14,000 Residents

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Stantec Green Infrastructure

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Stantec Green Master Planning

OVERVIEW: 66 acre parcel 103 residential units cluster development 41 rain gardens 19 filtration ponds 8 filterra tree box filters 9 turnouts/buffers Stroudwater Landing Westbrook, Maine

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Existing Site Conditions / Constraints

  • 14.5 acre steep

slopes >25%

  • 6.4 acre wetlands
  • 1.7 ac 100 year

floodplain

  • historic canal
  • n site
  • two streams
  • n site
  • two utility

easements

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Innovative Solutions

  • filterra
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Meadow Walk at Lynnfield: A Green Site

OVERVIEW: total site – 203 acres total developed area – 114 acres reedy meadow – 500 acres

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Meadow Walk at Lynnfield

  • porous asphalt

– UNH SC detail used – curve number when used with stone reservoir – 100 – curve number when used without stone reservoir – 39

  • construction

considerations

– staging concerns – over excavation – roof drain

Image Credit: UNH SC

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More Stantec Green BMPs

Bio-retention Cells Constructed Wetlands Rain Gardens Wet Detention Ponds

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Stantec’s Green Infrastructure Research and Development

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The Latest From Our Research Partners at UNH and NCSU

Photo Credit: UNH SC

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Image Credit: UNH SC

UNH Stormwater Center

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UNH Research

  • water quality: N

Image Credits: UNH SC

Low Median High 1st Quartile 2nd Quartile

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NCSU Stormwater Center Group

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NCSU Stormwater Center Group

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  • Ecological

Restoration

  • Threatened

& Endangered Species

  • Environmental

Permitting

Ecosystem Restoration

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Multiple Benefits

storm flow control water & air quality flood risks temperatures ecosystem health public amenity groundwater recharge carbon footprint

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Dockside Green

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Integrated Urban Water System Design

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100 200 300 400 500 600 700 1980 2000 2020 Ponds and Wetlands Green Infrastructure

Notable Project Locations Advanced Green Infrastructure Modeling: Stroudwater Landing, ME 2010 Olympic Games Green Design: S.E. False Creek, Vancouver BC Pond Creek Watershed Green Sol’n: Louisville Metropolitan Sewer District Franklin County Green Infrastructure BMP Demonstration: Columbus, OH Stantec Green Infrastructure R&D: Portland, ME and Westford, MA Numerous Green Roof Sites, Including Stantec Offices

Stantec Green Infrastructure

Dozens of Technologies, Hundreds of Sites, and Research Partnerships with UNH / NCSU

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DISCUSSION