Laydown concrete bucket delivers fresh concrete through its bottom gate valve to worker powered concrete buggy at building floor edge. Worker operates gate valve lever with right hand. Bucket is supported by crane. The natural tilt of the laydown bucket allows it to extend inside the floor edge, held in place by the wire cable perimeter fall protection, in this instance. Worker will push concrete buggy to concrete placement position and tilt it forward to place its concrete, and then return to this point to load additional concrete. Ashley Terrace, Ann Arbor, Michigan April, 2007.