Hi Bob Openshaw,

The most important concept for the topo designer (V7 and up), is the fact that elevations are absolute.
This means that, (for example) if you are drawing a berm with elevation 5 ft, then you are drawing an overlapping berm with elevation= 3 ft you will get a berm with 5 ft with a 2ft sunken area (like a pool). In other words, your levels will be always the difference between the elevations of the different elements

To illustrate better, try this-->
Step 1--> open an empty topo file--> draw a circular topo area--> set it with any elevation (say 10 ft)--> click the Generate Topography button--> Open a liveview window--> you will see a flat lot
Step 2--> open an empty topo file--> cover all the lot with a square topo shape--> set the elevation as 0--> draw a circular topo area--> set it with any elevation (say 10 ft)--> click the Generate Topography button--> Open a liveview window--> you will the berm in the lot

So, in your case--> set a topo shape on your lot with elevation 99'--> set all the other elevations with the original elevation--> (100', 101' etc) --> in this way, you can use the original annotations

Patricia

Hi Bob Openshaw,

You're welcome! :-)

Nope, I don't know of any issues. You can set the elevation (+ or -) according with your necessities. You just need to keep in mind that the absolute elevation concept I stated in the post above (difference between levels) works also with negative levels

Patricia