Birken Vogt
Charter Member
I have seen this done a number of times now and it's making me wonder. Why are these rural highways out in the middle of farm fields getting milled 6 inches or more before they place an overlay? They are milling down to the top of some previous year's overlay. There is nothing wrong with the base, just that the top was getting a little worn out. I always thought that in that condition just place another layer and shoulder up the edges. Just curious.