Abstract: The present invention provides a dumpster and a lifting arm for lifting the dumpster and dumping the contents of the dumpster into a storage box. The dumpster includes an open top and is for storing garbage or some other material and is supported on the ground. The articulated lifting arm is usually mounted beneath a vehicle or other transportation apparatus having an open topped storage box. The articulated lifting arm is arranged for lifting the dumpster from the supporting surface to a position above the storage box for dumping any material stored in the dumpster into the storage box. The articulated lifting arm comprises hydraulic devices, a base member, and arm member, first positioning means, an attachment member, lifting devices, and dumping.backslash.positioning devices.