On November 17th of 2015 the finishing touches were completed to the replacement retaining wall. This included moving earth up to the top of the wall to get it a bit more level with the area up there. In addition concrete was poured at the corner sections where it turns to connect the sections together.
In the end we built what we intended to: a durable replacement wall that will last just about anything short of a catastrophic earthquake, and then it would probably be just find with one of those but who knows.
Here’s are before and after images that show the grand scope of work.