| Open Space Easements of Loudoun County, VA (2011) | |
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Data format: SDE Feature Class File or table name: GISDBB.GISBROW.OPENSPACE_POLY Coordinate system: Lambert Conformal Conic Theme keywords: planningCadastre, environment, Open Space, Conservation Easement |
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Abstract:
This Openspace feature class contains permanent open space easements for Loudoun County. It shows both full and partial (where possible) parcel easements that currently exist. |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
This Openspace feature class contains permanent open space easements for Loudoun County. It shows both full and partial (where possible) parcel easements that currently exist.
Open space and the conservation easement information is used for taxation, planning and in the Purchase of Development Rights (PDR) Program.
The data layer is a single feature class derived from the Parcel layer and recorded deeds and plats.The layer is scheduled for a monthly review and updates as needed but also will go through an 'end of the tax year' audit and update. Data are stored in the corporate ArcSDE Geodatabase as a polygon feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN (vertical datum, if applicable, NAVD88), US Survey foot units.
publication date
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user. Data users should consult all available deed information to determine exact easement locations. These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
1 Harrison Street SE, 2nd Floor
MS 65
Retention of attribute accuracy throughout the coverage to geodatabase feature class coversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have, on a record by record basis, identical attribution when comparing all concatenated fields to all the user-defined attribution.
Topologically clean
Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.
Retention of coordinate accuracy throughout the coverage to geodatabase feature class conversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have the same record total, and on a record by record basis, area, perimeter, and length differential of less than +/- 0.5%.
Assistance in Purchase of Development Rights (PDR) Program
Openspace easements dervied from Parcels feature class and recorded deeds and plats
This data set was part of a batch process that converted legacy data from ArcInfo coverage in Librarian to a single-tiled ArcInfo coverage in preparation for a final coversion to ArcSDE Geodatabase Feature Classes. Data were extracted from Librarian using the EXTRACT TOPOLOGICAL command. Multi-tiled data sets were extracted into multiple coverages and then combined based on the feature type(s). Layers with both polygon and arc feature classes were processed with the Arc commands, MAPJOIN and DISSOLVE. Arc feature classes alone were processed with the Arc commands, APPEND and DISSOLVE. Layers with both arc and point feature classes and point feature classes alone were processed with the Arc command, APPEND. When used, the Arc command, DISSOLVE, was given with the <#all> option. All coverages were then reprojected to HARN 83 using the following .prj file specifications: INPUT PROJECTION STATEPLANE UNITS FEET ZONE 5551 DATUM NAD27 NADCON PARAMETERS OUTPUT PROJECTION STATEPLANE UNITS FEET FIPSZONE 4501 DATUM HPGN NADCON PARAMETERS END This dataset was then converted to a feature class in a geodatabase in ArcSDE.
Data layer has been updated with Phase 1 of most recent update process. All easements, & entire parcel, are shown in the layer, with no spatial indication of partial easements. Phase 2 of update process is currently underway, which will show the existing parcel easements.
Metadata imported.
Dataset copied.
Another Internal feature number created by user
ESRI
Feature geometry.
ESRI
9 digit unique parcel ID
Loudoun County
Type of easement
Loudoun County
Easement covers only part of parcel
Easement covers entire parcel
Holder, or owner, of easement
Loudoun County
Type of easement
Loudoun County
Easement given as gift or from 3rd party source
Loudon County
Easement through purchase of development rights program
Loudon County
Easement from zoning action
Loudon County
Number of the plat easement is recorded on
Loudoun County
Area of easement feature
Loudoun County
Perimeter of easement feature
Loudoun County
OP_UPD_SOURCE: Source that created or modified feature class
Source Definition 0 Undetermined 1 Legacy 2 County 3 Contract
1 Harrison Street SE, 2nd Floor
MS 65
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user.
ESRI Personal Geodatabase Feature Class
ESRI Shapefile
AutoCad Digital Exchange File
Size limit: 4.5 GB. Visit our website at: http://www.loudoun.gov/omagi, click on "Loudoun County Mapping Documents & Order Forms." The "Forms" directory will lead you to custom & standard (countywide) data order forms. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information regarding all data requests.
1 Harrison Street SE, 2nd Floor
MS 65