North Carolina Floodplain Mapping Program, North Carolina Division of Emergency Management 200802 vector digital data withheld MAPFLDHAZLN MapFldHazLn is a GIS shapefile representing the flood mapping boundaries defined by the engineering models for the 100 year, 500 year and floodway. The MapFldHazLn spatial table contains information about the flood hazard line features for the study area. These data are the linear representation of the boundaries of the flood hazard areas that are or will be depicted on the FIRM. These data were collected and derived by the North Carolina Floodplain Mapping Program (www.ncfloodmaps.com) as part of its effort to modernize FEMA Flood Insurance Rate Maps (FIRM) statewide. The North Carolina Floodplain Mapping Program was established through a Cooperating Technical State (CTS) agreement with FEMA in response to the extensive damage caused by Hurricane Floyd in 1999. en 200802 publication date Complete As needed -82.775326 -82.107657 36.090162 35.139654 884530.000000 1071306.552083 526725.000000 866425.744792 None Map Flood Hazard Floodplain Boundaries 1% annual chance flood hazard 0.2% annual chance flood hazard North Carolina Atlas & Gazetteer (Yarmouth, Maine: DeLorme, 2001). Yancey County, Burnsville, Green Mountain, Swiss, North Carolina None These data were created with the highest consideration of accuracy and data integrity. However, as with all other geospatial datasets, users must take into consideration the consequences of using the data for specific applications, business processes, decisions, and map display. For example, surface conditions may have changed in some areas since the initial data was captured. A full metadata record is provided to help the user understand the date, map scale and accuracy standard applied in the collection and data development process. The data should not be used without full review and comprehension of the metadata. Acknowledgement of the North Carolina Floodplain Mapping Program is appreciated when using the data set. Data further derived from this data set should be fully documented using the federal metadata standard and listed via the NC Geospatial Data Clearinghouse. Greenhorne & O'Mara, Inc. James Huffines Technical Director mailing and physical address

5565 Centerview Dr. Suite 107

Raleigh NC 27606 919-532-2332 919-851-8393 ESRI ArcCatalog 9.2.4.1420 Federal Emergency Management Agency Unknown Unknown document Washington, DC FEMA withheld Federal Emergency Management Agency Unknown Unknown raster digital data Washington, DC FEMA withheld Federal Emergency Management Agency Unknown Unknown map Washington, DC FEMA withheld Personal GeoDatabase Feature Class None None Watershed Concepts 200802 Shapefile 200802 publication date MapFldHazLn For streams restudied by detailed and limited detail methods, the 1% and 0.2% annual chance floodplains were delineated using flood elevations determined at each cross section. Between cross sections, the boundaries were interpolated using topographic data acquired using airborne LIDAR. This LIDAR data was acquired during the winter 2000-2001 flying season. The topographic data satisfies a vertical root-mean-square error (RMSE) accuracy standard of 20cm (1.3 feet accuracy at the 95% confidence limit) for the Outer Banks and 25 cm (1.6 feet accuracy at the 95% confidence limit) for those portions of the basin lying west of the Outer Banks. These data could be contoured at roughly a 2-foot vertical contour interval. All elevations were referenced to the NAVD 88 and reflect orthometric heights. Variably spaced, bare-earth digital topographic data in ASCII point file format were combined with imagery (either flown concurrently with the LIDAR data or using existing digital orthophotos) to establish a Triangulated Irregular Network (TIN) of digital elevation points, which include selected breaklines to be used for hydraulic modeling. For coastal floodplains, after analyzing wave heights along each transect, wave elevations were interpolated between transects. Various source data were used in the interpolation, including topographic data described above. Controlling features affecting the elevations were identified and considered in relation to their positions at particular transect and their variation between transects. The 1% annual chance floodplain boundary corresponds to the boundary of the areas of special flood hazards (Zones VE, AO, AH, A99, AR, A, and AE), and the 0.2% annual chance floodplain boundary corresponds to the boundary of areas of moderate flood hazards. In cases where the 1% and 0.2% annual chance floodplain boundaries are close together, only the 1% annual chance floodplain boundaries have been shown. The floodways were computed for certain stream segments on the basis of equal conveyance reduction from each side of the floodplain. Floodway widths were computed at cross sections. Between cross sections, the floodway boundaries were interpolated. The computed floodway is shown on the FIRM. In cases where the floodway and 1% annual chance floodplain boundaries are either close together or collinear, only the floodway boundary is shown. For streams restudied by detailed and limited detail methods, the 1% and 0.2% annual chance floodplains were delineated using flood elevations determined at each cross section. Between cross sections, the boundaries were interpolated using topographic data acquired using airborne LIDAR. This LIDAR data was acquired during the winter 2000-2001 flying season. The topographic data satisfies a vertical root-mean-square error (RMSE) accuracy standard of 20cm (1.3 feet accuracy at the 95% confidence limit) for the Outer Banks and 25 cm (1.6 feet accuracy at the 95% confidence limit) for those portions of the basin lying west of the Outer Banks. These data could be contoured at roughly a 2-foot vertical contour interval. All elevations were referenced to the NAVD 88 and reflect orthometric heights. Variably spaced, bare-earth digital topographic data in ASCII point file format were combined with imagery (either flown concurrently with the LIDAR data or using existing digital orthophotos) to establish a Triangulated Irregular Network (TIN) of digital elevation points, which include selected breaklines to be used for hydraulic modeling. Furthermore, a uniformly spaced sampling of the TIN resulted in uniformly spaced Digital Elevation Models (DEMs), with 20 ft x 20 ft post spacing, which was generated in multiple file formats. For coastal floodplains, after analyzing wave heights along each transect, wave elevations were interpolated between transects. Various source data were used in the interpolation, including topographic data described above. Controlling features affecting the elevations were identified and considered in relation to their positions at particular transect and their variation between transects. The 1% annual chance floodplain boundary corresponds to the boundary of the areas of special flood hazards (Zones VE, AO, AH, A99, AR, A, and AE), and the 0.2% annual chance floodplain boundary corresponds to the boundary of areas of moderate flood hazards. In cases where the 1% and 0.2% annual chance floodplain boundaries are close together, only the 1% annual chance floodplain boundaries have been shown. The floodways were computed for certain stream segments on the basis of equal conveyance reduction from each side of the floodplain. Floodway widths were computed at cross sections. Between cross sections, the floodway boundaries were interpolated. The computed floodway is shown on the FIRM. In cases where the floodway and 1% annual chance floodplain boundaries are either close together or collinear, only the floodway boundary is shown. Unknown Metadata imported. withheld 20080225 13395100 Vector Simple FALSE 0 TRUE FALSE coordinate pair 0.005208 0.005208 survey feet North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983 NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Explicit elevation coordinate included with horizontal coordinates 0.000010 METAID Foreign key, link to Metadata table, should be the same as for the flood hazard areas NC-FMIS Database Design Review and Physical Model (State of North Carolina, North Carolina Floodplain Mapping Program, September 2002) 9999 Temporary value Watershed Concepts METAID String 25 0 0 CURREFFTF Boolean. Used to keep track of zone boundary changes. True if line is effective, False if line represents historic boundary that is superseded NC-FMIS Database Design Review and Physical Model (State of North Carolina, North Carolina Floodplain Mapping Program, September 2002) False Boolean. Used to keep track of zone boundary changes. True if line is effective, False if line represents historic boundary that is superseded NC-FMIS Database Design Review and Physical Model (State of North Carolina, North Carolina Floodplain Mapping Program, September 2002) CURREFFTF SmallInteger 2 0 0 FLD_LN_ID FLD_LN_ID String 25 0 0 Shape Feature geometry. ESRI PolyLine A type of shape made up of two or more segments. ESRI Coordinates defining the features. HYDRAID String 25 0 0 HYDRAID CST_MDL_ID String 25 0 0 CST_MDL_ID LN_LID String 5 0 0 LN_LID ObjectID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. MAPFLDHAZLN Combined Flood Hazard Lines NC-FMIS Database Design Review and Physical Model (State of North Carolina, North Carolina Floodplain Mapping Program, September 2002) Feature Class 0 OBJECTID Geometry Geometry 0 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE SHAPE_Length Double 8 0 0 Feature geometry. ESRI Coordinates defining the features. SHAPE_Length SHAPE_Length Double 8 0 0 Length of feature in internal units. ESRI Positive real numbers that are automatically generated. North Carolina Center for Geographic Information and Analysis Production Services mailing and physical address

301 N. Wilmington Street, Suite 700

Raleigh NC 27601-2825 USA (919) 733-2090 (919) 715-0725 dataq@ncmail.net 8:30 AM to 5:30 PM EST Phone and email preferred. For current price information visit www.cgia.state.nc.us/cost.html Downloadable Data NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government. ASCII line dataset and metadata PC-based PKZip compatible products (WinZip, unzip) may be used to decompress the dataset. 2.0-4.0 MB withheld For current price information visit www.cgia.state.nc.us/cost.html Custom data creation and analysis work is available by contract. Contact Production Services at (919) 733-2090. Data are supplied in ArcInfo and ASCII formats. Format compatibility is the user's responsibility. For more information visit www.cgia.state.nc.us/cost.html. unknown 20080225 Greenhorne & O'Mara, Inc. Kristel Whitson GIS Technician mailing and physical address

5565 Centerview Dr. Suite 107

Raleigh NC 27606 919-532-2331 919-851-8393 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile en {11DE4750-BF63-4058-984C-77090744A6A7} 20080225 13395100 FALSE 20220620 10154000 20220620 10154000 MAPFLDHAZLN 002 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.6'><WKT>PROJCS[&quot;NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Lambert_Conformal_Conic&quot;],PARAMETER[&quot;False_Easting&quot;,2000000.002616666],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,-79.0],PARAMETER[&quot;Standard_Parallel_1&quot;,34.33333333333334],PARAMETER[&quot;Standard_Parallel_2&quot;,36.16666666666666],PARAMETER[&quot;Latitude_Of_Origin&quot;,33.75],UNIT[&quot;Foot_US&quot;,0.3048006096012192],AUTHORITY[&quot;EPSG&quot;,2264]]</WKT><XOrigin>-121841900</XOrigin><YOrigin>-93659000</YOrigin><XYScale>1536</XYScale><ZOrigin>-100000</ZOrigin><ZScale>8000</ZScale><MOrigin>-100000</MOrigin><MScale>8000</MScale><XYTolerance>0.010416666666666666</XYTolerance><ZTolerance>0.002</ZTolerance><MTolerance>0.002</MTolerance><HighPrecision>true</HighPrecision><WKID>102719</WKID><LatestWKID>2264</LatestWKID></ProjectedCoordinateSystem> Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 MAPFLDHAZLN 884530 1071306.552083 866425.744792 526725 1 -82.775326 -82.107657 36.090162 35.139654 1 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld Local Area Network Personal GeoDatabase Feature Class File Geodatabase Feature Class NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet EPSG 6.12(9.0.0) 0 20220620