A gold color metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of a white castle tower charged with a red rooster all on a mound issuing from two wavy bars all gold and all surmounting a blue disc bearing two gold drops within a red annulet inscribed, left of the tower, WE WILL, and right of the tower, MAKE IT all in gold.
Scarlet and white are the colors used for the Corps of Engineers and a castle tower is emblematic of the branch. Also the tower along with the mound, wavy bars, drops and annulet refers to Amchitka Island, where the unit as the 177th Engineers constructed petroleum storage tanks in the Aleutian Islands campaign, World War II. The mound and wavy bars also simulate coastal areas near the units present location and the red rooster represents the State bird of Rhode Island, and together symbolize the organizations allotment to that state.
The distinctive unit insignia was approved on 11 April 1974.
NOTE: A coat of arms was never approved for this Battalion.