
The challenger (disk harrow), a machine that appeared much later on the scene than the others, turned the soil on the present floor of the gully today. With no rain in the last few days, the compression readings on the floor have been favorable meaning that work may proceed. The cashew shape the gully still maintains will yield to the desired shape of the soccer field and the encircling track as the gully floor rises to the desired level and the north wall of the depression is lowered to meet it. Lots of engineering smarts at work here.