An adjustable tamping wheel forms a berm of a desired cross section over a recently filled trench. The tamping wheel contains a center spindle, an offset left spindle, an offset right spindle, a freely rotating center basket on the center spindle with transverse tamping members, a freely rotating left basket on the left spindle with inwardly converging transverse tamping members, and a freely rotating right basket on the right spindle with inwardly converging transverse tamping members.
