You can interpolate the height of a section and store these values in the network point feature class.
- Select a Section feature in your map.
- Right-click the Section feature and select Attributes.
The Section feature class form is displayed.
- Click Function menu
Interpolate Section Height.
This function populates the BOTTOM_ELEVATION attribute for the network points that lie on the section. If a BOTTOM_ELEVATION value exists, the form is displayed so you can replace the value.