Fort Wayne’s Green Infrastructure Initiatives ACEC Environmental Business Conference 2009 - PowerPoint PPT Presentation

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Fort Wayne’s Green Infrastructure Initiatives ACEC Environmental Business Conference 2009

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Fort Wayne’s Green Infrastructure Initiatives ACEC Environmental Business Conference 2009
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Fort Wayne’s Green Infrastructure Initiatives ACEC Environmental Business Conference 2009

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Presentation Transcript

  1. Fort Wayne’s Green Infrastructure InitiativesACEC Environmental Business Conference 2009

  2. Presentation Overview • Urban Stormwater “Issue” • Incorporating Low Impact Development (LID) and Green Infrastructure (GI) • Progress on Developing GI use in Fort Wayne • Fort Wayne’s Rain Garden Program • GI Stormwater Standards • Other Fort Wayne GI Initiatives

  3. Development Alters Natural Landscape 75 – 100% impervious cover 30% evapo-transpiration 55% runoff 10% shallow infiltration 5% deep infiltration

  4. Source: Indianapolis Clean Stream Team Urban Stormwater Issues • More impervious surface, higher velocity, more energy • Reduced infiltration and more stormwater runoff • Higher stream flows during storms • Pollution of surface waters • Stormwater contributes to frequency and volume of CSOs

  5. What is Typical of Urban Stormwater? • Road debris enters storm sewer through catch basins • Paper products • Oils/Grease • Pet wastes • Wildlife wastes • Residents, contractors, and businesses illegally dispose of grease, debris and chemicals in catch basins • Highly impervious areas dramatically increase discharges to streams and velocity City of Fort Wayne

  6. Old: Make it go as far away as possible as fast as possible New: Slow it down, clean it up, soak it in Stormwater Philosophy Control peak flows to maintain predevelopment conditions – no water quality Control peak flows and 80% TSS removal

  7. How Challenging is it to Control Stormwater? Non-Point Source SW Runoff Increasing Cost Point Source SW Runoff CSO Increasing Complexity

  8. CSO Reduction Options Expensive Conveyance and Storage Manage Stormwater at the Source

  9. Not an Umbrella – Put a “LID” on it! • What is LID and LID-R and GI? • Low Impact Development (LID) – Retrofits (R) – Green Infrastructure (GI) - Innovative Stormwater Management Approach and Sustainable Design • Basic Principles: • Manage rainfall at the source (lot level) • Use small, cost-effective landscape features • Mimic predevelopment conditions • Environmentally Friendly • Aims to reduce runoff (and CSOs), improve water quality, aquatic resources, and natural hydrology

  10. Fort Wayne’s Perfect Storm • Wanted to implement a green initiative • Negotiating our LTCP and Consent Decree • EPA and IDEM receptive to a SEP in place of some fines • We reviewed EPA SEP guidance and projects done in other places • Wanted to raise awareness and give ratepayers a way to own a piece of the Consent Decree. VOILA! – Rain Gardens

  11. City of Fort Wayne Rain Garden Initiative This project was undertaken in connection with the settlement of an enforcement action by the United States and the State of Indiana concerning Combined Sewer Overflows.

  12. Residential Rain Garden Incentive Program • Creation of a rain garden website and branding • Development of a How To Manual and training sessions for homeowners • Goal of 1,000 residential RG’s - Incentive program with cash reimbursement up to $175 or plant matching • 20 demonstration gardens • Educational curriculum for local schools

  13. Residential “How-To” Rain Garden Workshops • City Led Multiple Workshops for Residents on “How-To” Design your Own Rain Garden

  14. Residential Rain Gardens

  15. First Demonstration Rain Garden • Planted April 2008 by Girls Scouts and staff • Fort Wayne’s Sewer Maintenance building

  16. Science Central Demonstration Rain Garden • Interactive Museum Focusing on Science (including RGs!) During Volunteer Effort with Community

  17. Does LID and GI Make Sense in Fort Wayne? • CSO LTCP / CD • No Current Plans to Downsize Gray Facilities • Preserve our LTCP “Control Level” • Cost-Benefit Analysis • Evaluate Costs, but Weigh-in Overall Benefits • Incorporate Sustainability that make “Sense” and “Cents” • Prove It • “Demonstration Green Infrastructure Neighborhood” being considered as a Pilot Project

  18. Woodrow-Vance Partial Sewer Separation • 7,600 square feet of rain gardens and driveable grass • Rain garden “bump outs” in public right of way

  19. Storm Sewer Installation with Rain Gardens in Right of Way

  20. Incorporating Green Infrastructure

  21. Stormwater Management Strategies Porous pavement Tree conservation Rain garden • Rain barrels • Open drainage ways • Reduced imperviousness Amend soil

  22. Fort Wayne’s Stormwater Information Series • Conducted GI Information Sessions Prior to Revising our “Stormwater Design and Construction Manual” • Sessions covering various GI topics • LID – Programmatic, Technical and Economical Perspectives • Pervious Pavements – Benefits, Design and Economies • Green Solutions – Public Use, Bioretention, Green Roofs and RGs • Each 4-hour Session Filled to Capacity with Developers, Contractors, Landscapers, City Officials and Consultants

  23. Updating Stormwater Standards • Will include sizing and performance standards for new stormwater quality management practices • Will include design guidelines for designers and plan review staff • Intend to start with a supplemental as review impacted ordinances and hold discussions with all stakeholders

  24. Greener Plant Operations Stop burning excess methane bio-gas capture and re-use Increase aeration efficiency GESC - Lighting, HVAC, pumps, etc

  25. Residuals Management Studies • Bio-solids – long term operational impacts and alternative methods/uses (filter presses, CHP, etc) • Digester gas – evaluation of alternatives (CHP, Pipeline Quality, etc) • Grit handling and disposal

  26. Green City Business Certification • Businesses that commit to green practices are certified by the City • Businesses receive training and a mentor • City provides a checklist of green practices • The business commits to implementing a certain number of practices to be certified

  27. Discussion / Q&A