Help please: Model a sloped surface a a rock filled wall in the middle using InRoads

Hi Jeff, Thanks for you response.

For the upper surface and the lower surface both we know one side of the surface elevation, the wall's front slope, back slope and the bottom width are known. And there are other information available also. What I am seeking is the general procedure of model similar site.

What I did is model the upper surface and lower surface seperatly by draw three dimensional lines (use the slope to manually caculate the other side of elevation) and import them to the surface.

For the wall I made a template and make the top right corner of the wall to project to the upper surface, and use this template to design the wall surface.

If this is the right approach? I would appreciate if you can share your valuale experience.

Thanks in advance

You need more information.  I see two constraints: two 2% slopes.  What else is fixed?  What else can vary and what controls how that varies?  For example, what is the height of the wall defined by?  It is impossible to define it in software if you can't specifiy it in English.  If you can specify it in English, I can do it in InRoads.