Moving Dirt

During the Stumbling Girls visit, we noticed some activity on the street below my apartment. At the building across the street, there were a bunch of men moving dirt from within a small walled-off area. For several days, they were shoveling dirt and rocks into bags, and carrying the bags to a big pile by the side of the street. It looked like hard work. On my return from Hawaii, I was surprised to see the area filled back up with dirt, and some structure under construction. After a few days, it was clear they were making an awning to cover the entrance to the underground parking garage. I still can't figure out why those men moved all that dirt, only to have it filled back in again.