Current Setback Factors illustrate average rates of shoreline change over approximately 50 years. The information presented here is not predictive, nor does it reflect the short-term erosion that occurs during storms.The most current erosion rates depicted in these data have been adopted (February-2013) by the Coastal Resources Commission for incorporation into oceanfront setback rules. These data are used as factors in determining setback distances for oceanfront construction. Please contact your CAMA Local Permit Officer or the nearest regional field office of the N.C. Division of Coastal Management for more information..
Historic Shorelines: These data represent historic oceanfront (1849 - present) and inlet (1930's - present) shorelines; and were digitized referencing a variety of sources (NOS-Topographic Sheets, LIDAR Mean High Water, and Photography Wet/Dry line).
Construction Setback Factors: DCM now has digital versions of current and historic setback factors, and can be viewed using this web mapping application or downloaded for use in your GIS.
Construction setback is measured landward from the first line of "Stable-Natural" vegetation, or Static Vegetation line, whichever is applicable. Setback is based on size of structure and erosion rates.
less than 5,000 sqft
60 feet or 30 times the erosion rate
greater than or equal to 5,000 sqft
120 feet or 60 times the erosion rate
greater than or equal to 10,000 sqft
130 feet or 65 times the erosion rate
greater than or equal to 20,000 sqft
140 feet or 70 times the erosion rate
greater than or equal to 40,000 sqft
150 feet or 75 times the erosion rate
greater than or equal to 60,000 sqft
160 feet or 80 times the erosion rate
greater than or equal to 80,000 sqft
170 feet or 85 times the erosion rate
greater than or equal to 100,000 sqft
180 feet or 90 times the erosion rate
Building in accordance with setbacks doesn't guarantee that the ocean never will threaten your house. But it reduces your risk of property loss, it reduces the encroachment of development onto public beaches, and it can reduce the amount of tax money spent responding to problems that are exacerbated by poorly sited development.
Map Viewer Instructions:
Welcome to the Division's newest web map viewer! We've included more data, easy to use navigational tools, and streamlined the process of getting the information you need.
Questions / Comments:
Questions about internet mapping tool? How do I use it? Report "bugs" or any technical concerns, or simply comment. Ken Richardson