We have really tough soils in our area so you don’t understand our problems and why we do the things we do.”
Over the years we have encountered this statement every time we have gone to a new state or area. This has even happened here in Minnesota! In our recent column on design factors and how they are impacted by organic loading, we reviewed early research looking at a “tough soil” and the recommendations for design from the study.
In this case, the “tough soil” was an Ontonagon clay, which has a clay content of 65 percent or higher. The
