A silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield, the upper half red and the lower half blue, the division formed by the embattlements of a silver tower issuing from base, mortared black and bearing a green disc charged with a silver fleur-de-lis; issuing from the top of the tower a yellow demi-sun of eleven rays all within a tripartite red scroll bearing the motto BUILD DEFEND OVERCOME in silver letters.
Red and white are the traditional colors of the US Army Engineers. The castle tower is symbolic of engineering and construction and, along with the rising sun, forms an allusion to the Engineer Corps uniform button; further, the demi-sun has eleven rays, commemorating New York, eleventh state of the union and the units home area. The blue area in base denotes the units capability to fight as infantry if required. The green roundel, or pomme, refers to islands of the Pacific and the fleur-de-lis to Europe, symbolizing service in World Wars I and II by elements of the unit.
The distinctive unit insignia was approved on 10 July 1979.