Pond Grading

Bentley's Basin.dgnlib

The Basin Civil Cell almost always looks good out-of-the box.  The challenge is that it's hard to constrain how much land it grabs.

From inside-out and bottom up, it creates a Create 3D by Volume element from a pond bottom shape (2D). 

It drops the 2D bottom graphic 5 feet below the lowest point of the terrain and creates a 3D shape based on 500,000 cu. ft. storage. 

These values can be adjusted, and the 2D pond bottom can be dragged around

Top of Pond
Top of Pond by 3D Volume
 
Pond Bottom Vertical
Pond Bottom Vertical

It uses their End Conditions/Pond/Berm template for the berm and exterior tie-ins.