We just had an area in our side-lawn cemented where we keep the dog kennel and we had a cement walkway put into the patio. We have had plenty of rain lately and the bobcat must of made over 50 trips back and forth . First digging the area out and hauling the dirt away, then bringing in the stone and then he hauled the cement in the box of the bobcat because we didn't have enough room to get the cement truck closer..... So now what do we do about the big ruts the bobcat left in the lawn? Some of the ruts are 6-8 inches deep if not more? Someone told us we have to work it all up before we add dirt on top of it and the seed. How in the world do you loosen it when the machine drove on it so much? I just can't picture a rototiller doing it, with it that deep. We only plan on planting in the ruts and not work up the rest of the lawn. Do we have to work it up or would just poking holes in it like with a pitch fork aerate it enough and then just add soil on top and plant? . All opinions are welcome..thank you.