Use volume tools to display and adjust the elevation of a grading design.
You can change the elevation of either an entire grading group or a selection of grading objects. Use this command to optimize cut and fill requirements.
A dynamic surface must exist for the grading group and a Volume Base Surface must be specified in the Grading Group Properties to use most of the Grading Volume Tools.
Tip: If you are designing a detention pond and want to size it by volume, it may help to create a temporary surface to use as the Volume Base Surface for comparison. To do this, draw a polyline around the pond rim, assign it the rim elevation, and add it as breakline data to a surface. When you use such a surface as the Volume Base Surface for the grading group, you can more easily see how much volume the pond can contain.
