S.C. Code Ann. § 48-39-280
Forty-year retreat policy
Effective Jun 3, 20161988 Act No. 634, Section 3; 1990 Act No. 607, Section 3; 1993 Act No. 181, Section 1235; 2006 Act No. 387, Sections 50, 51; 2016 Act No. 197 (S.139), Section 3, eff June 3, 2016.
(A) A forty-year policy of retreat from the shoreline is established. The department must implement this policy and utilize the best available scientific and historical data in the implementation. The department must establish a baseline that parallels the shoreline for each standard erosion zone and each inlet erosion zone. Subject to Section 48-39-290(D), the baseline established pursuant to this section must not move seaward from its position on December 31, 2017.
- (1) The baseline for each standard erosion zone is established at the location of the crest of the primary oceanfront sand dune in that zone. In standard erosion zones in which the shoreline has been altered naturally or artificially by the construction of erosion control devices, groins, or other manmade alterations, the baseline must be established by the department using the best scientific and historical data, as where the crest of the primary oceanfront sand dunes for that zone would be located if the shoreline had not been altered.
- (2) The baseline for inlet erosion zones that are not stabilized by jetties, terminal groins, or other structures must be determined by the department as the most landward point of erosion at any time during the past forty years, unless the best available scientific and historical data of the inlet and adjacent beaches indicate that the shoreline is unlikely to return to its former position. In collecting and utilizing the best scientific and historical data available for the implementation of the retreat policy, the department, as part of the State Comprehensive Beach Management Plan provided for in this chapter, among other factors, must consider historical inlet migration, inlet stability, channel and ebb tidal delta changes, the effects of sediment bypassing on shorelines adjacent to the inlets, and the effects of nearby beach restoration projects on inlet sediment budgets.
- (3) The baseline within inlet erosion zones that are stabilized by jetties, terminal groins, or other structures must be determined in the same manner as provided for in item (1). However, the actual location of the crest of the primary oceanfront sand dunes of that erosion zone is the baseline of that zone, not the location if the inlet had remained unstabilized.
- (B) To implement the retreat policy provided for in subsection (A), a setback line must be established landward of the baseline a distance which is forty times the average annual erosion rate or not less than twenty feet from the baseline for each erosion zone based upon the best historical and scientific data adopted by the department as a part of the State Comprehensive Beach Management Plan.
- (C) The department, before July 3, 1991, must establish a final baseline and setback line for each erosion zone based on the best available scientific and historical data as provided in subsection (B) and with consideration of public input. The baseline and setback line must not be revised before July 1, 1998, nor later than July 1, 2000. After that revision, the baseline and setback line must be revised not less than every seven years but not more than every ten years after each preceding revision. The department shall establish the baseline and setback line for all locations where the baseline and setback line were established on or before January 31, 2012. Nothing in this section allows the seaward movement of the baseline after December 31, 2017. In the establishment and revision of the baseline and setback line, the department must transmit and otherwise make readily available to the public all information upon which its decisions are based for the establishment of the final baseline and setback line. The department must hold one public hearing before establishing the final baseline and setback lines. Until the department establishes new baselines and setback lines, the existing baselines and setback lines must be used. The department may stagger the revision of the baselines and setback lines of the erosion zones so long as every zone is revised in accordance with the time guidelines established in this section.
- (D) In order to locate the baseline and the setback line, the department must establish monumented and controlled survey points in each county fronting the Atlantic Ocean. The department must acquire sufficient surveyed topographical information on which to locate the baseline. Surveyed topographical data typically must be gathered at two thousand foot intervals. However, in areas subject to significant near-term development and in areas currently developed, the interval, at the discretion of the department, may be more frequent. The resulting surveys must locate the crest of the primary oceanfront sand dunes to be used as the baseline for computing the forty-year erosion rate. In cases where no primary oceanfront sand dunes exist, a study conducted by the department is required to determine where the upland location of the crest of the primary oceanfront sand dune would be located if the shoreline had not been altered. The department, by regulation, may exempt specifically described portions of the coastline from the survey requirements of this section when, in its judgment, the portions of coastline are not subject to erosion or are not likely to be developed by virtue of local, state, or federal programs in effect on the coastline which would preclude significant development, or both.
- (E) A landowner claiming ownership of property affected who feels that the final or revised setback line, baseline, or erosion rate as adopted is in error, upon submittal of substantiating evidence, must be granted a review of the setback line, baseline, or erosion rate, or a review of all three. The requests must be forwarded to the department board in accordance with Section 44-1-60, and the final decision of the board may be appealed to the Administrative Law Court, as provided in Chapter 23 of Title 1.
HISTORY: 1988 Act No. 634, Section 3; 1990 Act No. 607, Section 3; 1993 Act No. 181, Section 1235; 2006 Act No. 387, Sections 50, 51; 2016 Act No. 197 (S.139), Section 3, eff June 3, 2016.
Effect of Amendment
2016 Act No. 197, Section 3, rewrote the section, so as to prohibit the baseline from moving seaward from the position determined on December 31, 2017, and to eliminate the right to petition the administrative law court to move the baseline seaward upon completion of a beach renourishment project.