Onslow County GIS Data
Feature Data Layers obtained April 24, 2000
The following county-wide feature data layers are available for Onslow County. The data are in shapefile format, State Plane 1983/feet. The data available in the Libraries was last updated April 24, 2000.
|Shapefile||Description||File Size||Brief Metadata|
|onslow||Land Parcels||47.6 mb||onslow.txt|
|hydro||Surface Hydrography||28.5 mb||hydro.txt|
|fld_dat||Flood Zones||7.9 mb||fld_dat.txt|
|firedist||Fire Districts||0.1 mb||firedist.txt|
|elect||Election Districts||0.1 mb||elect.txt|
|cntyline||County Boundaries||0.03 mb||cntyline.txt|
|city||City Boundaries||0.09 mb||city.txt|
|center||Street Centerlines||8.9 mb||center.txt|
Auxiliary Layers for Rok Technologies Application (labels, etc.)
As of 2000, digital orthophoto flights had been flown between 1993 and 1996. The original data is in BIL format (scanned from hard copy) but is not available. MrSID compressed versions (13:1 compression) are, however, available on CD-ROM. Data are available at 100', 200' and 400' scale resolutions, with higher resolution data in urban areas. Because of scanning and compression the data is not as high quality as the original photography. Data availability by image resolution is shown below:
Image index shapefiles (index100.shp, index200.shp, and index400.shp) for each resolution are available on the Geodata server at http://geodata.lib.ncsu.edu/localgov/Onslow_County/2000/meta/ (data in State Plane 1983/feet).