It's only the 2-3in because that's all that's wet. If you scrape that the next 2-3in will likely be the same. Stick some logs in that mush and drive over it or just deal with it. It's a tractor, it's a wet time of year and to be expected.FYI I made a few tests, it seems this slusshy dirt is only the very 2-3 inches road surface. Now the question is how to remove this .