Developing Meaningful Case Studies

Transcription

1 Developing Meaningful Case Studies Sadie Drescher Watershed Researcher & Planner Center for Watershed Protection 2 pm to 2:50 pm April Turner Coastal Communities Specialist SC Sea Grant Consortium January 16, Charleston, SC Coastal South Carolina Low Impact Development Manual Funded by the National Estuarine Reserve System Science Collaborative

2 Overview LID Atlas (April Turner, SC Sea Grant) Case Study Examples (Sadie Drescher, CWP) Oak Terrace Preserve, SC Abercorn Common in Savannah, GA Wilmington, NC Discussion (Leigh Wood, NIWB-NERR) What case study scale is needed? Do you know about a good case study? What else?

3 National LID Atlas Another great source of LID case study info Developed by National NEMO Available at:

4 SC LID Atlas Highlights innovative LID projects throughout SC Provides information about LID techniques and identifies where they are being used in SC Allows users to share their projects on a local and national scale

5 SC LID Atlas

6 SC LID Atlas

7 SC LID Atlas

8 SC LID Atlas

9 SC LID Atlas

10 SC LID Atlas Data Entry Form

11 SC LID Atlas Data Entry Form

12 Get the designs right Coastal LID Case Studies Goal: Give local examples These Coastal LID Case Studies can help overcome common obstacles by providing: Design photos Cost effectiveness Data guidelines Tips/challenges Contact information Pictures

13 Case Studies are available from these areas.

14 Photos on Flickr! Photos you can use in presentations and reports LID Photos Coastal LID Case Studies Photos Photo Credit: NEMO Flickr! is available online at Use appropriate photo credit when reproducing

15 Photos courtesy of Patricia Tierney.

16 Coastal LID Case Studies Purpose Use LID examples to promote more LID in the ground in the southeast. How can I use it? Case studies give us the latest information, photos, designs, tips for success, and contacts. What is the format? CWP case study is a short document in pdf and LID Atlas is living website. Where can I get more information? Coastal case studies online at: LID Atlas at:

17 Let s see some examples What works? What does not work? Let s hear about maintenance, cost, and community outreach

18 Case Study Example 2: Oak Terrace Preserve: Redevelopment, Paired Catchment Study, and Outreach Unique LID Components Public/private partnership Residential involvement Monitoring & research Lots of LID examples Lots of outreach, materials, & info Cost data now available Contact Lisa Vandiver, PhD at

19 LEED Silver Leadership in Energy and Environmental Design 31/65 points Cistern Green Roof Porous Asphalt Infiltration Unique LID Components

20 Abercorn Commons 8108 Abercorn Street Savannah, GA Eco-friendly commerce center Redevelopment Commercial land use; 21.6 acres 1 st US LEED certified retail center Reduced IC from 100% to 30% Completed in May 2006 Pre-design charettes Drafted Savannah Green Building Code guidebook

21 Stormwater Above Savannah s Requirements Green Roof Cistern (180,000 ft 2 ) Porous Asphalt (40,000 ft 2 ) Infiltration Bioswales Shale Walkways Oil/Water Separator Ed/Info Signs

22 Slide courtesy of Tommy Linstroth, modified Porous asphalt diverts stormwater

23 Porous asphalt estimated to reduce runoff 30% City variance for more parking spaces

24 Native plants Shale walkway 100% onsite runoff used for irrigation 5.5 million gallons per year saved $45K per year saved

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26 Photo courtesy of Tommy Linstroth.

27 Light concrete to reduce heat island

28 Costs Item Cost Landscaping $75,000 Cistern $500,000 Green Roof $80,000 Porous Asphalt $320,000 Onsite Irrigation -$45,000 per year (savings) 30% Energy Efficiency -$20,000 (savings)

29 Lessons Learned Could do more LID Stormwater in islands Tree canopy was <30% Maintenance costs were 3x traditional BMPs Porous asphalt vacuuming & general landscaping Savannah requires maintenance check every 2 yrs Use trays for green roof Use pervious pavers Use cover to reduce cistern algae growth Energy savings passed to owner not to developer Legacy automobile left TCE; needed monitoring wells

30 Cistern ($500K cost; 180,000 ft 2 )

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33 Unique LID Components Many collaborators Residential involvement Urban retrofits Ongoing efforts Cost data Water quality monitoring

34 Burnt Mill Creek Wilmington, NC Stormwater runoff to Cape Fear river Industrial, commercial, & residential land use > 20% impervious cover 4,223 acres 303d list Impairments for BOD, DO, FCB, algae, sediment, PAHs NC State University Watershed Education for Communities and Officials (WECO)

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46 Discussion What case study scale is needed? Do you know about a good case study? Do you want to get involved? Anything else?

47 Thank you! Leigh Wood CTP Coordinator North Inlet - Winyah Bay National Estuarine Research Reserve USC Baruch Marine Lab leigh.wood@belle.baruch.sc.edu Blaik Keppler CTP Coordinator ACE Basin National Estuarine Research Reserve KepplerB@dnr.sc.gov April Turner Coastal Communities Specialist April.Turner@scseagrant.org Jessica Whitehead, PhD Regional Climate Extension Specialist jessica.whitehead@scseagrant.org Samantha Bruce samantha.bruce@scseagrant.org SC Sea Grant Consortium Greg Hoffman, P.E., Watershed Engineer/Program Director Sadie Drescher, Watershed Researcher & Planner Center for Watershed Protection gph@cwp.org & srd@cwp.org Lisa Vandiver, PhD Habitat Restoration Specialist, NOAA Restoration Center Richard Geer Engineer, SCDHEC Bureau of Water Coastal (BOW-C) Lauton Sutley ACE Basin NERR Amanda Flake Natural Resources Planner, Beaufort County Kimberly Counts Clemson Extension Water Resources Agent, Carolina Clear Guinn Garrett Water Resources Agent, Carolina Clear and Clemson Extension Sarah Pachota Clemson Carolina Clear