LOW IMPACT DEVELOPMENT IN COASTAL SOUTH CAROLINA: A PLANNING AND DESIGN GUidE Low Impact Development in Coastal South Carolina: A Planning and Design Guide This publication was made possible through support from the National Estuarine Research Reserve System Sci- ence Collaborative, a partnership of the National Oceanic and Atmospheric Administration and the University of New Hampshire. The Science Collaborative advances the use of science in coastal decision making by engag- ing intended users of the science in the research process—from problem definition to practical application of results. Cover Photo credits: Kathryn Ellis, Kathryn Ellis, Seamon Whiteside + Associates, Erik Smith. Recommended Citation for this Guidebook: Ellis, K., C. Berg, D. Caraco, S. Drescher, G. Hoffmann, B. Keppler, M. LaRocco, and A.Turner. 2014. Low Impact Development in Coastal South Carolina: A Planning and Design Guide. ACE Basin and North Inlet – Winyah Bay National Estuarine Research Reserves, 462 pp. Download a digital copy of this document and the spreadsheet tools at http://www.northinlet.sc.edu/LID Low Impact Development in Coastal South Carolina: A Planning and Design Guide ACKNOWLEDGEMENTS Project Team Sadie Drescher, Center for Watershed Protection Kathryn Ellis, EIT, North Inlet-Winyah Bay National Estuarine Research Reserve Greg Hoffmann, P.E., Center for Watershed Protection Blaik Keppler, SC Department of Natural Resources & ACE Basin National Estuarine Research Reserve April Turner, South Carolina Sea Grant Consortium Michelle LaRocco, North Inlet-Winyah Bay National Estuarine Research Reserve; University of South Carolina Wendy Allen, North Inlet-Winyah Bay National Estuarine Research Reserve; University of South Carolina Advisory Committee The Advisory Committee provided guidance and feedback on the content of this document, devel- oped and participated in workshops, and engaged stakeholders. We would like to thank them for their enthusiasm, knowledge, experience, and commitment to the process. Samantha Bruce, South Carolina Sea Grant Consortium Kimberly Counts, Clemson University Cooperative Extension Service, Carolina Clear Amanda Flake, Beaufort County Planning Department Guinn Garrett, Clemson University Cooperative Extension Service, Carolina Clear Leigh W. Kane, Horry County Planning & Zoning Katie McKain, City of Charleston Planning, Preservation, and Sustainability Department Lauton Sutley, SC Department of Natural Resources & ACE Basin National Estuarine Research Reserve Lisa Vandiver, NOAA Restoration Center Low Impact Development in Coastal South Carolina: A Planning and Design Guide i Low Impact Development in Coastal South Carolina: A Planning and Design Guide Technical Advisers Professionals along the coast volunteered their time and expertise for the LID Manual and were a great asset to this project. We would like to thank them for attending meetings, presenting at work- shops, and providing thorough and thoughtful reviews of draft materials. James B. Atkins, Richland County Conservation Department Brian Bates, Woolpert Chris Berg, College of Charleston MES Program & SC Department of Natural Resources Ron Bullman, Ryland Homes Fowler Del Porto, KCI Technologies David Fuss, Horry County Stormwater Department Richard Geer, SC Department of Health & Environmental Control – Bureau of Water Chris Haynes, Hussey, Gay, Bell & DeYoung Shannon Hicks, SC Department of Health & Environmental Control – Bureau of Water Daniel Hitchcock, Clemson University Belle W. Baruch Institute of Coastal Ecology & Forest Science Charles Jarman, Clemson University Cooperative Extension Anand Jayakaran, Clemson University Belle W. Baruch Institute of Coastal Ecology & Forest Science Kim Jones, Town of Bluffton Stormwater Management Richard Karkowski, Thomas & Hutton Engineering Steve Kirk, City of Charleston Public Service - Engineering Division Tara Maddock, SC Department of Health & Environmental Control – Office of Ocean & Coastal Resource Management Betty Niermann, Seamon Whiteside + Associates Charles Norris, PulteGroup Sara Pachota, Clemson University Cooperative Extension Hillary Repik, Town of Mount Pleasant Public Services - Stormwater & Water Quality Division Joshua Robinson, Robinson Design Engineers Thom Roth, Horry County Stormwater Department Andrew Wunderly, Charleston Waterkeeper ii Low Impact Development in Coastal South Carolina: A Planning and Design Guide Low Impact Development in Coastal South Carolina: A Planning and Design Guide We would also like to extend our thanks to the following professionals who offered assistance dur- ing this process either by providing technical guidance, case study information, review comments, and/or by their participation in workshops. Devendra Amatya, USDA Forest Service Fred Guthier, ADC Engineering Specialists Andrew Anderson, NC State University Extension Ronald Hanson, Charleston National HOA Thomas Angell, Verdant Enterprises Melissa Heintz, North Inlet-Winyah Bay NERR; USC Tamara Avery, Sea Island Habitat for Humanity Stephen Henry, US Department of Agriculture - NRCS Merry Barton, City of North Charleston Amanda Herring, City of Charleston Kathryn Basha, BCD Council of Governments Craig Hobart, Pulte Homes Hakim Bayyoud, Beaufort County Sean Hoelscher, City of North Myrtle Beach Jay Beeson, City of North Myrtle Beach Erika Hollis, Upstate Forever Eddie Bernard, Town of Mount Pleasant Edward Holton, Town of Hollywood Anne Blair, Hollings Marine Laboratory Robert Horner, Weston & Sampson Kevin Blayton, City of North Myrtle Beach Daniel Johnson, Wildlands Engineering Keith Bowers, Biohabitats Kimberly Jones, Town of Bluffton Amanda Brennan, CISA/USC Tracy Jones, Georgetown County Rocky Browder, Town of Hilton Head Island David Joyner, Clemson Extension Carolina Clear Peter Brower, Spring Island Russel Keller, South Carolina Research Authority Jeff Buckalew, Town of Hilton Head Island Robert Klink, Beaufort County Tim Callahan, College of Charleston Erin Koch, SC Department of Natural Resources Chris Campeau, SeamonWhiteside + Associates Christine Koczera, SCDHEC-OCRM Michele Canon, BCD Council of Governments J.R. Kramer, Remark Landscape Architecture Deb Caraco, Center for Watershed Protection Sally Krebs, Town of Hilton Head Island Greg Carbone, CISA/USC Kenneth Kreikemeier, KGK and Associates John Carullo, Jr., Charleston County Kirsten Lackstrom, CISA/USC Sandy Cashion, Piedmont Companies Lisa Lamb, Jasper County Amanda Childers, Town of Harleyville Matthew LaPointe, Berkeley County Reid Christianson, Center for Watershed Protection Eric Larson, Beaufort County Will Cook, City of Georgetown Sarah Latshaw, SCDHEC-OCRM Richard Cox, Fox Commercial Properties Alex Leinbach, Town of Bluffton Amy Dabbs, Clemson University Cooperative Extension John Lester, HLA Inc. John Dangerfield, II, Forsberg Engineering Lisa Lord, Beaufort County Open Land Trust Jack Daniels, Ryland Homes Judi MacGlashin, Spring Island Elias Deeb, Cedrus Development Anthony Magliacane, Joint Base Charleston Colette DeGarady, The Nature Conservancy Bill Mallery, MWV Community Development Neil Desai, Charleston County Bryan McIlwee, Town of Hilton Head Island Kirstin Dow, CISA/USC David Mehard, Charleston County Jack Ellis, Davis & Floyd Bonnie Miley, Berkeley County Quinton Epps, Richland County Kevin Mitchell, Town of Mt. Pleasant Joe Fersner, Woolpert Hope Mizzell, SC Department of Natural Resources Rebecca Flaten, Coastal Carolina University Marty Morganello, Lowcountry Rainwater Harvesting Elizabeth Fly, South Carolina Sea Grant Consortium Daniel Newquist, Waccamaw Regional COG Daniel Forsberg, Forsberg Engineering Heather Nix, Upstate Forever Karen Fuss, Coastal Carolina University Karl Ohlandt, Spring Island Laura Gardner, Center for Watershed Protection William O’Neal, SeamonWhiteside + Associates Gary Gebhardt, Town of Ridgeland Jenny Palmer, SeamonWhiteside + Associates Stephanie Gentemann, Crescent Communities Dara Park, Clemson University Scott Gentry, AMEC Aashka Patel, CISA/USC Katie Giacalone, Clemson Extension Carolina Clear John Peckham, North Charleston Public Works Jessica Gillis, BCD Council of Governments Nick Pergakes, BCD Council of Governments Sam Gilpin, Charleston Green Roofs Danny Polk, Beaufort County Siobhan Gordon, SC Department of Transportation Steve Price, City of Goose Creek Low Impact Development in Coastal South Carolina: A Planning and Design Guide iii Low Impact Development in Coastal South Carolina: A Planning and Design Guide Mark Rasmussen, SCDNR/ACE Basin NERR Michael Redmond, Engineering & Technical Services Jeremy Ritchie, Town of Bluffton Kim Rodgers, CISA/USC Aaron Rucker, City of North Myrtle Beach Ken Rye, Town of Mt. Pleasant Denise Sanger, SC Department of Natural Resources David Schwerd, Horry County E.M. Seabrook III, E.M. Seabrook Jr. Inc Sonia Shanaj, Berkeley County Phillip Slayter, Colleton County Erik Smith, North Inlet-Winyah Bay NERR; USC Geoff Smith, URS Justine Stadler, UNH/NERR Science Collaborative Jill Stewart, SCDHEC-Bureau of Water Karen Swanson, SC Department of Natural Resources Jeff Thompson, SCDHEC-OCRM Julia Tillery, AMEC Marc Trinks, Moore Farms Botanic Garden Jay Walea, Crescent Communities Bethney Ward, NOAA Coastal Services Center Jeff Webb, ADC Engineering Specialists Priscilla Wendt, SC Department of Natural Resources David Whitaker, SC Department of Natural Resources Sarah White, Clemson University Jessica Whitehead, North Carolina Sea Grant Michael Whitfield, Green Roof Outfitters Stephen Williams, The EARTHWORKS Group Danny Wilson,