A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield with rounded top blazoned: Per fess wavy Gules and Azure, issuant from partition line three shovel blades Argent, one to chief bearing a pheon of the first and two to base flanking a sea lion grasping a sword in dexter paw of the third. Attached below and to the sides of the shield is a Silver scroll inscribed "QUOD FACIENDUM" in Black letters.
The colors scarlet and white (silver) are for the Corps of Engineers. The wavy partition line and blue base symbolize the Pacific area, in which the unit's battle honors (represented by the three stylized shovel blades) were won. The pheon, or crossbow arrowhead, represents the unit's participation in the Ryukyus beachhead and the sea lion from the arms of the city of Manila represents its service in the Philippines. The motto translates to "What Is To Be Done."
The distinctive unit insignia was approved on 2 October 1958.