I've been looking for one too. I can't say I've found one. I started making alignments for each layer of reinforcement which is very tedious and I don't recommend it.
I did a project with an MSE wall recently and built the wall using generic links. I did not model the tiebacks if that is what you need.
I used a preliminary corridor to establish the toe-of-wall and top-of-wall profiles and alignments. I can send you the road and wall assembly but it is pretty simple: From the shoulder a link width-and-slope targets the toe of wall, then a link slope-to-elevation targets the top-of-wall profile at a constant 1:6. Then a link-to-marked-point targets a previously-marked point on the road shoulder to finish off the top of the wall.
I used a separate corridor to develop the wall excavation volume.
Hello, Jeff, I saw your post abbout the MSE wall , im trying to draw an mse retaing wall project, I been looking around if there is a lisp or a program that does that, any luck in your side?