The barracks is a large building in stone and cement, still in decent condition, which was built to garrison the contingent tasked with defending the pass; its 16 rooms could house 50 men. In addition to the barracks, other fortifications also defended the pass during the Second World War. On what is now the French side the remains of a nineteenth century shelter named for Lieutenant Mario Amedo are clearly visible, as are two bunkers of the Vallo Alpino defensive fortifications; 126 to the left of the pass and 127 to the right.