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