A Silver color metal and enamel device 1 1/4 inches (3.18 cm) in height overall consisting of a shield blazoned: Per bend embattled of six crenels and five merlons Gules and Argent, on the first a fleur-de-lis flowered in chief between two arrows saltirewise all of the second and in base a Taeguk in the Korean colors (of the first and Azure). Attached above from a wreath Argent and Gules an Indian's head of the second with feathered tips of the last. Attached below the shield a Silver scroll inscribed "NEVER IDLE" in Red letters.
Scarlet and white are the colors used for the Corps of Engineers. The organization's World War II campaign service in Europe including two assault landings in indicated by the fleur-de-lis and the two crossed arrows; the Korean War service is represented by the scarlet and blue Taeguk from the flag of the Republic of Korea. The embattled partition alludes to the total number of campaigns (seven European and four Korean); battlements also suggest the engineer combat mission of the unit. Additionally, the flint arrowheads refer to the organization's origin and present location in Oklahoma.
The distinctive unit insignia was approved on 5 September 1972.