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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

Watershed Management & Low Impact Developmentfor Litchfield Board of RealtorsGreen Committee

DEP / Watershed, Lakes and NPS Programs

MaryAnn Nusom Haverstock

Thursday, May 7, 2009

low impact development
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)

low impact development lid
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
how to i d your l i d
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
best management practices bmps
Grassed Swale

Rain garden

Permeable pavers

Best Management Practices (BMPs)

Bioretention cul-de-sac

jordan cove recommendations planning and post construction
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)
slide12
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

slide13
Rain Gardens

Photo: TRBP

Coventry Town Hall Annex Building – Coventry, CT

slide14
Rain Gardens

Photo: CT DEP

Jordan Cove Urban Watershed Project – Waterford, CT

slide15
Rain Gardens

Photo: CT DEP

UConn Storrs Campus – Mansfield, CT

slide16
Bioretention Areas

Photo: CT NEMO

Evergreen Walk Mall Parking Lot – South Windsor, CT

slide17
Bioretention Areas

Photo: CT DEP

Jordan Cove Urban Watershed Project – Waterford, CT

slide18
Permeable Block Pavers

Photo: CT DEP

Hole in the Wall Parking Lot – East Lyme, CT

slide19
Permeable Block Pavers

Photo: CT DEP

Hole in the Wall Parking Lot – East Lyme, CT

slide20
Permeable Block Pavers

Photo: CT DEP

Hole in the Wall Parking Lot – East Lyme, CT

slide21
Permeable Concrete Block Pavers

Photo: CT DEP

Hole in the Wall Parking Lot – East Lyme, CT

slide22
Plastic Grid Pavers

Photo: CT NEMO

West Farms Mall Overflow Parking Lot – Farmington, CT

slide23
Green Roofs

Photo: CT DEP

Middlesex Extension Center Demonstration – Haddam, CT

slide24
Green Roofs

Photo: CT NEMO

Centerbrook Architects Building – Essex, CT

slide25
Rain Barrels

Photo: CT DEP

Middlesex Extension Center Demonstration – Haddam, CT

watershed management list of contacts www ct gov dep watershed
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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