retaining wall

[scout1]

any way to draw top of wall at a given elevation with a straight top

I have a terrain in the drawing from survey.

[BryceEngstrom]

You can take a 3D or elevation view of the wall and manually connect the break points along the top so that you are left with one straight line and then make it level.

[glennw]

The easiest way is to not use a Chief retaining wall.

Use a Terrain Break to get the change in elevation and then just use a normal wall for the retaining wall.

[BryceEngstrom]

That is actually what I tend to do too, but just playing around with it, the retaining walls, aside from the issue of wanting a flat top, seem quite a be cleaner as far as terrain generation than trying to work in the terrain break.  Seems like terrain breaks produce all kinds of anomalies in the terrain in anything but the most non-complex situations.