Argent, three swords one and two, Gules, on a canton of the last a pale of the first and a chief of the like bearing a fleur-de-lis of the second.
From a wreath Argent and Gules a demi-tower of the first issuing three demi-spears Or, overall and between a United States Army Cavalry saber of the third and a scimitar Sable point down saltirewise, a fleur-de-lis Azure.
ESSAYONS ET FAISONS (Let Us Try and Let Us Do).
The colors are white (Argent) and red (Gules) for Engineers. The three swords symbolize the three outstanding achievements of the organization in World War II. Descent from the 20th Engineer Regiment is indicated by the canton which bears the coat of arms of that organization and indicates its World War I service.
The tower refers to the Engineer Corps and the Battalion's World War I service. The arrows allude to three arrowheads awarded to the unit for achievements recognized during World War II and for service in Central Europe, the Rhineland and Ardennes/Alsace. The fleur-de-lis recalls war service in Normandy, Algeria and Tunisia. Gold denotes excellence. The scimitar commemorates the unit's campaign in Southwest Asia. The United States Army Cavalry saber recognizes the 30 years the unit was stationed in Germany in support of the border mission of the 11th Cavalry Regiment during the Cold War.
The coat of arms was originally approved for the 54th Engineer Combat Battalion on 13 January 1950. It was redesignated for the 54th Engineer Battalion on 15 July 1960. The insignia was amended to include a crest on 5 November 2003.