To Label Individual Line and Curve Segments

On the ToolspaceSettings tab, in the General Label Style collection, set up Line and Curve label styles to use for the lines, curves and polylines.

On the ToolspaceSettings tab, in the General Label Style collection, specify the default line label style.

Use the Single Segment or Multiple Segment command to quickly label a line or curve using the default label style.

Use the Add Line/Curve Labels option to access the Add Labels dialog box if you need to create or modify a style before labeling a line or curve segment.

1. Click Annotate tabLabels & Tables panelAdd Labels menuLine And CurveAdd Single Segment Line/Curve Label.
2. Select the line segment to label.

OR

1. Click Annotate tabLabels & Tables panelAdd Labels menuLine And CurveAdd Line And Curve Labels.
2. In the Add Labels dialog box, under Feature, ensure that Line And Curve is selected.
3. Under Label Type, select Single Segment.
4. Specify the other options as required.
5. Click Add and then select the feature line or segment to label.