How To: Reproject shapefiles from a custom coordinate system to State Plane NAD83


Instructions provided show how to use the Projection Utility to reproject shapefiles from a custom projection to State Plane NAD83.


Example projection parameters

Projection Name: Lambert_Conformal_Conic
Units: Meters
Central Meridian: -84.25
Reference Latitude: 37.50
Standard Parallel 1: 37.9666666667
Standard Parallel 2: 38.9666666667
Geographic Coordinate System: GCS North American 1983 (NAD 83)
False Northing: 0
False Easting: 500000
Prime Meridian: Greenwich

Projection Name: NAD_1983_Kentucky North
Units: Meters
Projection: Kentucky State Plane
Datum: NAD 83
Zone: North

  1. Load the shapefile and initialize the Projection Utility.
    A. Start ArcView.
    B. Select File > Extensions.
    C. Check 'Projection Utility Wizard' and click OK.
    D. Create a new view and add the shapefile to be projected.
    E. Select File > ArcView Projection Utility.
    The shapefile appears in the 'Step 1' dialog box.
    [O-Image] Projection Utility - Step1 dialog box
    If the Coordinate System in the 'Step 1' dialog box shows 'unknown,' it is necessary to define the input projection parameters as shown below. If the content of that field is other than 'unknown,' it is possible to skip the input projection parameters definition. 
  2. Click Next on the 'Step 1' dialog box.
  3. Define the input projection parameters. For our example, use the input parameters shown above.
    A. Make sure the 'Show Advanced Options' box is checked.
    B. Set Coordinate System Type to Projected.
    C. Set the Name dropdown list to Custom.
    D. Set the Units for your projection.
    E. Switch to the Parameter tab.
    F. Set the Base Projection.
    G. Set base projection parameters (Central_Meridian, Central_Parallel, and so forth).
    H. Set the Geographic Coordinate System.
    I. Set False Easting and False Northing.
    J. Set the Prime Meridian.
    [O-Image] Projection Utility - Step 2 dialog box
  4. Click Next on the Step 2 dialog box. Click Yes if prompted to save the coordinate system.
    [O-Image] Projection Utility - Step 2b dialog box
  5. Define the output projection parameters. For our example, use the output parameters shown above.
    A. Set Coordinate System Type to Projected.
    B. Set the Name for your projection.
    C. Set the Units for your projection.
    [O-Image] Projection Utility - Step 3 dialog box
  6. Click Next on the 'Step 3' dialog box.
  7. Click Browse to specify a name and location for the new shapefile.
  8. Click Next on the 'Step 4' dialog box.
  9. Review the Summary of the projection parameters.
  10. Click Finish.

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