This is at a Townhouse project and they will cover it with a deck. It was just paved so had to do the final cleanup to the retention pond. 12+ inches of muddy silt. No access.Walls are 9foot 6 inches tall at the lowest. Hoisted a Ditch Witch SK 350 in and went to work. Pushed it to the corner and used the Excavator to dip it out. It was another companies job I just supplied the excavator and the know how.LOL I had to dig with bucket out of view.