Retrofitting with LID in the Burnt Mill Creek Watershed Wilmington, NC

Transcript of Retrofitting with LID in the Burnt Mill Creek Watershed Wilmington, NC

Stormwater Stormwater EngineeringEngineeringRetrofitting with LID in the Retrofitting with LID in the

Burnt Mill Creek Watershed Burnt Mill Creek Watershed Wilmington, NCWilmington, NC

Jason Wright, Dept. of Biological and Agricultural Engineering, NCSU

Christy Perrin & Patrick Beggs, Watershed Education for Communities and Local

Officials, NCSU

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www.bae.ncsu.edu/stormwaterwww.bae.ncsu.edu/stormwaterBAE Stormwater Engineering BAE Stormwater Engineering GroupGroup

Wilmington Watersheds

Burnt Mill Creek Watershed Burnt Mill Creek Watershed

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Burnt Mill Creek Watershed,Wilmington, NC: 303(d)

Stream

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Burnt Mill Creek Land Use

55% Residential

19% Commercial & industrial

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Heavily polluted by bacteria and PAHs (toxic organic substances resulting from combustion)

Increased velocity & quantity of stormwater runoff

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New Hanover Local New Hanover Local Watershed PlanningWatershed Planning

Sponsored by NC EEP from 2001-2002

WECO convened local watershed group to guide plan

Watershed health of Burnt Mill Creek & 2 others was assessed, projects identified

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Partnership received EPA 319 Grant for Partnership received EPA 319 Grant for Burnt Mill Creek 2004-2007Burnt Mill Creek 2004-2007

1. Design and Construct 6 large BMPs

2. Community Outreach and involvement, resulting in many small backyard BMPs

3. Water quality monitoring

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Goals of Current Burnt Mill Creek Goals of Current Burnt Mill Creek ProjectProject

Improve water quality in the creek

Demonstrate specific practices improve water quality in targeted subcatchments

Determine realistic improvement goals for urban watershed restoration

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Strategies for Achieving Goals of Strategies for Achieving Goals of Burnt Mill Creek ProjectBurnt Mill Creek Project

Change the public’s behavior through education and involvement

Install Best Management Practices (BMPs) at large scale and backyard scale

Monitor results of activities to gauge effectiveness and hone strategy

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Identifying potential BMP locationsIdentifying potential BMP locations

Some identified in 2002 EEP LWP Group brainstorm sessions Group windshield surveys (headwaters) Friend of a friend… Referrals from City Stormwater Services Suggestions from partners

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YMCAYMCA

YMCA

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YMCA Porous ConcreteYMCA Porous Concrete

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4 inch from downspouts

8 inch to Bioretention A

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Outlet from Downspouts

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Stormwater Stormwater EngineeringEngineering

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Bunt Mill Creek ProjectsBunt Mill Creek Projects

Port City Java

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Burnt Mill Creek/Port City JavaBurnt Mill Creek/Port City Java

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Port City JavaPort City Java

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Gregory Elementary SchoolGregory Elementary School

Gregory Elementary

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9,000 ft2 Drainage Area

Rain Garden(1,500 ft2)

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Principal (Mrs. Greene)

Retrofitting with LID in the Burnt Mill Creek Watershed Wilmington, NC

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Transcript of Retrofitting with LID in the Burnt Mill Creek Watershed Wilmington, NC