Publication Date:
2021-06-27
Description:
Beachfront jurisdictional lines were established by the South Carolina Beachfront Management Act (SC Code §48-39-250 et seq.) in 1988 to regulate the new construction, repair, or reconstruction of buildings and erosion controlstructures along the state’s ocean shorelines. Building within the state’s beachfront “setback area” is allowed, but is subject to special regulations. For “standard beaches” (those not influenced by tidal inlets or associated shoals), a baseline is established at the crest of the primary oceanfront sand dune; for “unstabilized inlet zones,” the baseline is drawn at the most landward point of erosion during the past forty years. The parallel setback line is then established landward of the baseline a distance of forty times the long-term average annual erosion rate (not less than twenty feet from the baseline in stable or accreting areas). The positions of the baseline and setback line are updated every 8-10 years using the best available scientific and historical data, including aerial imagery, LiDAR, historical shorelines, beach profiles, and long-term erosion rates. One advantage of science-based setbacks is that, by using actual historical and current shoreline positions and beach profile data, they reflect the general erosion threat tobeachfront structures. However, recent experiences with revising the baseline and setback line indicate thatsignificant challenges and management implications also exist. (PDF contains 3 pages)
Description:
National Oceanographic and Atmospheric Administration
Description:
U.S. EPA Coastal Management Branch
Description:
U.S. Geolgocial Survey
Description:
NOAA Sea Grant
Keywords:
Biology
;
Environment
;
Planning
;
TCS22
Repository Name:
AquaDocs
Type:
conference_item
Format:
application/pdf
Format:
application/pdf
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