To Raise or Lower Feature Line Elevation by Reference

Use the Raise/Lower By Reference command to raise or lower a feature line, based on a grade, slope or relative elevation from a reference point.

Select the Pick option to pick any location in the drawing or use the transparent commands to select a COGO point or surface elevation.

1. Click Modify tabEdit Elevations panelRaise/Lower By Reference Find.
2. Select the reference point to use. Select the Pick option to use OSNAP to pick any location, in the drawing or use the transparent commands to select a COGO point or surface elevation.

   The elevation of the selected point is displayed at the command line.

3. Select the feature line or other object that you want to raise or lower.
4. Select a point on the object you selected.

   The distance between the selected point and the reference point, and the elevation and grade of the selected point, are displayed at the command line.

5. Do one of the following:
   • Enter a grade. The grade is applied between the reference point and the point on the feature line.
   • Enter Slope and enter a slope. The slope is applied between the reference point and the point on the feature line.
   • Enter Difference, and enter the elevational difference. The elevational difference is applied between the reference point and the point on the feature line.

   The assigned elevation for the point is displayed at the command line.

6. The original reference point remains active. Select another feature line to continue setting elevations in reference to this point. Or, press Enter to end the command.