Disposal of Dredged Material from the Atlantic Intracoastal Waterway
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Disposal of Dredged Material from the Atlantic Intracoastal Waterway September 2015 i Suggested citation: Myszewski, Margaret A. and Merryl Alber, 2015.Disposal of Dredged Material from the Atlantic Intracoastal Waterway. Report prepared by the Georgia Coastal Research Council, University of Georgia, Athens, GA for the Georgia Department of Natural Resources, Coastal Resources Division, 71 pp. Photo Source: Bud Davis, U.S. Army Corps of Engineers - U.S. Army Corps of Engineers Digital Visual Library: http://en.wikipedia.org/wiki/Intracoastal_Waterway#/media/File:Hobucken_Bridge_North_Carolina.jpg. About the Georgia Coastal Research Council: The Georgia Coastal Research Council (GCRC) was established to provide mechanisms for improved scientific exchange between coastal scientists and decision makers, and to promote the incorporation of best-available scientific information into State and local resource management. The Council is not a policy organization, but rather seeks to provide unbiased, objective information about scientific issues. Baseline support for the program is shared by the Coastal Resources Division of the Georgia Department of Natural Resources (through the Coastal Management Program) and Georgia Sea Grant, with project-specific support from the National Science Foundation and other agencies. For more information, please contact us at [email protected] or see our website at: http://www.gcrc.uga.edu. This publication was supported in part by an Institutional Grant (NA14OAR4170084) to the Georgia Sea Grant College Program from the National Sea Grant Office, National Oceanic and Atmospheric Administration, U.S. Department of Commerce as well as a grant award (#NA13NO54190114) to the Georgia Department of Natural Resources from the Office of Ocean and Coastal Resource Management, National Oceanic and Atmospheric Administration. All views, opinions, statements, findings, conclusions, and recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views or opinions of DNR, OCRM, the Georgia Sea Grant College Program, or the National Oceanic and Atmospheric Administration. ii Table of Contents Introduction .................................................................................................................................................. 1 Part One: Background ................................................................................................................................... 2 Historical dredged material disposal practices ......................................................................................... 2 Current dredged material disposal practices ............................................................................................ 2 Mitigation requirements ....................................................................................................................... 3 Beneficial use ........................................................................................................................................ 3 Confined disposal .................................................................................................................................. 4 Open water disposal ............................................................................................................................. 5 Volume and placement of dredged material ............................................................................................ 5 Part Two: North Carolina, South Carolina, and northeastern Florida .......................................................... 7 Overview ................................................................................................................................................... 7 Funding allocation ................................................................................................................................. 7 Total volume ......................................................................................................................................... 7 Placement ............................................................................................................................................. 8 North Carolina ......................................................................................................................................... 10 AIWW .................................................................................................................................................. 10 Dredged material disposal .................................................................................................................. 11 Mitigation ............................................................................................................................................ 13 Recent dredging projects .................................................................................................................... 14 Regulatory summary ........................................................................................................................... 15 South Carolina ......................................................................................................................................... 17 AIWW .................................................................................................................................................. 17 Dredged material disposal .................................................................................................................. 17 Mitigation ............................................................................................................................................ 19 Recent dredging projects .................................................................................................................... 19 Regulatory summary ........................................................................................................................... 20 Northeast Florida .................................................................................................................................... 22 AIWW .................................................................................................................................................. 22 Dredged material disposal .................................................................................................................. 23 Mitigation ............................................................................................................................................ 24 Recent dredging projects .................................................................................................................... 24 iii Regulatory summary ........................................................................................................................... 26 References .................................................................................................................................................. 28 Appendix A. North Carolina Dredged Material Disposal Policies ............................................................... 33 Appendix B. South Carolina Dredged Material Disposal Policies ................................................................ 38 Appendix C. Florida Dredged Material Disposal Policies ............................................................................ 43 Appendix D. Land Use Classification of Confined Disposal Areas in North Carolina .................................. 48 Appendix E. Land Use Classification of Confined Disposal Areas in South Carolina ................................... 56 Appendix F. Land Use Classification of Confined Disposal Areas in Northeast Florida .............................. 65 iv List of Figures Figure 1. Map of the Atlantic Intracoastal Waterway (AIWW) in the southeast .......................................... 1 Figure 2. Confined disposal facility ............................................................................................................... 4 Figure 3 National dredged disposal volume by placement option: 2000-2014............................................ 6 Figure 4. Volume of dredged material from AIWW by State: 1999-2014 .................................................... 7 Figure 5. Map of AIWW in North Carolina .................................................................................................. 10 Figure 6. Wanchese Marsh, North Carolina restoration project ................................................................ 12 Figure 7. Map of AIWW in South Carolina .................................................................................................. 17 Figure 8. Trends in borrow areas for beach nourishment in South Carolina: 1954-2009 .......................... 18 Figure 9. Map of AIWW in northeast Florida .............................................................................................. 22 List of Tables Table 1. Current and historic placement practices by state ......................................................................... 8 Table 2. Land use classification of confined disposal areas .......................................................................... 9 Table 3. USACE easements on the AIWW in North Carolina ...................................................................... 10 Table 4. AIWW dredged disposal by type in North Carolina: 1999-2013 ..................................................