Shield
Gules, a sword Argent, hilt and pommel Or cutting a representation of the Gordian knot in fess, in chief two fleurs-de-lis of the third.
Crest
That for the regiments and separate battalions of the Texas Army National Guard: From a wreath Or and Gules, a mullet Argent encircled by a garland of live oak and olive Proper.
Motto
ARDUA VINCO (I Conquer Difficulties).
Shield
The shield is red and white, the colors of the Engineer Corps. The sword cutting the Gordian knot indicates the ability of the organization to dispose of difficulties by bold measures. The two battle honors of St. Mihiel and Meuse-Argonne earned by the 176th Engineer Regiment for whom the coat of arms was originally approved, are shown by the two golden fleurs-de-lis in the honor point.
Crest
The crest is that of the Texas Army National Guard.
The coat of arms was originally approved for the 176th Engineer Regiment on 9 July 1942. It was amended to add the crests of the Texas, Oklahoma and New Mexico Army National Guard on 7 September 1942. It was redesignated for the 176th Engineer Construction Battalion on 16 January 1946. It was rescinded (cancelled) on 14 February 1975. The insignia was reinstated and authorized for the 176th Engineer Battalion, Texas Army National Guard on 19 November 1996.