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Watershed Management & Low Impact Development for Litchfield Board of Realtors Green Committee

Watershed Management & Low Impact Development for Litchfield Board of Realtors Green Committee. DEP / Watershed, Lakes and NPS Programs MaryAnn Nusom Haverstock Thursday, May 7, 2009. Watershed Management and Low Impact Development. LOW IMPACT DEVELOPMENT.

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Watershed Management & Low Impact Development for Litchfield Board of Realtors Green Committee

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  1. Watershed Management & Low Impact Developmentfor Litchfield Board of RealtorsGreen Committee DEP / Watershed, Lakes and NPS Programs MaryAnn Nusom Haverstock Thursday, May 7, 2009

  2. Watershed Management and Low Impact Development

  3. LOW IMPACT DEVELOPMENT LID is a site design strategy intended to maintain or replicate predevelopment hydrology through the use of small-scale controls integrated throughout the site to manage runoff as close to its source as possible. (2004 CT-DEP Stormwater Quality Manual)

  4. Low Impact Development (LID) • LID can be incorporated into many residential and municipal areas to assist in environmental and engineering benefits. • Parking • Landscaping • Residential and Municipal Site planning • Municipal road design

  5. How to I.D. your L.I.D. • LID design strategies can include: • Residential rain gardens • Shared driveways • Alternative pavement surface including permeable pavers • Zero lot line setback • Reduced front setback • Stormwater disconnects • Reduction in road width • Elimination of curb and gutter • One-way cul-de-sac • Depressed island (bioretention) in cul-de-sac • Swales in right of way • Elimination of sidewalks

  6. Watersheds in Connecticut

  7. Jordan Cove Urban Watershed Sec. 319 National Monitoring Program

  8. TreatmentWatersheds

  9. Grassed Swale Rain garden Permeable pavers Best Management Practices (BMPs) Bioretention cul-de-sac

  10. Jordan CoveRecommendations Planning and Post-construction • Cluster design – reduces imperviousness • LID ordinance – needed because of waivers • Stormwater disconnects (reducing effective imperviousness of the site/subdivision) • Education – social scientist addition to team • Bioretention maintenance • Paver maintenance • Turf dam (build up along paver road edges) • Fire hydrant (maintenance cleaning caused paver road washout problems) • Seed mix (low nutrient input varieties)

  11. For more information, visit www.jordancove.uconn.edu Jordan Cove Project Funded in part by the CT DEP through a US EPA nonpoint source grant under § 319 Clean Water Act

  12. Rain Gardens Photo: TRBP Coventry Town Hall Annex Building – Coventry, CT

  13. Rain Gardens Photo: CT DEP Jordan Cove Urban Watershed Project – Waterford, CT

  14. Rain Gardens Photo: CT DEP UConn Storrs Campus – Mansfield, CT

  15. Bioretention Areas Photo: CT NEMO Evergreen Walk Mall Parking Lot – South Windsor, CT

  16. Bioretention Areas Photo: CT DEP Jordan Cove Urban Watershed Project – Waterford, CT

  17. Permeable Block Pavers Photo: CT DEP Hole in the Wall Parking Lot – East Lyme, CT

  18. Permeable Block Pavers Photo: CT DEP Hole in the Wall Parking Lot – East Lyme, CT

  19. Permeable Block Pavers Photo: CT DEP Hole in the Wall Parking Lot – East Lyme, CT

  20. Permeable Concrete Block Pavers Photo: CT DEP Hole in the Wall Parking Lot – East Lyme, CT

  21. Plastic Grid Pavers Photo: CT NEMO West Farms Mall Overflow Parking Lot – Farmington, CT

  22. Green Roofs Photo: CT DEP Middlesex Extension Center Demonstration – Haddam, CT

  23. Green Roofs Photo: CT NEMO Centerbrook Architects Building – Essex, CT

  24. Rain Barrels Photo: CT DEP Middlesex Extension Center Demonstration – Haddam, CT

  25. Watershed Management List of Contactswww.ct.gov/dep/watershed • Program Oversight - MaryAnn Nusom Haverstock – 424-3347 • Watershed Managers • Eric Thomas - 424-3548 • Susan Peterson – 424-3854 • Chris Malik – 424-3959 • Low Impact Development Coordinator • Jessica Morgan – 418-5994 • Nonpoint Source Implementation • Stan Zaremba – 424-3730 • Lakes Management • Chuck Lee – 424- 3716

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