Aqueduct of the Isabela, participation as sub-contractor of the Aqueduct of the Northwest Line, in the municipalities of Castañuela, Villa Vásquez and Navarrete. Channeling of the rivers Jacagua, Santiago, with its gabion walls, Channeling of the Puñal river, Santiago, with its gabion walls, Channeling of the Quinigua river with its gabion walls, channeling of the Las Ciénaga river, Palmar Arriba, with the approaches, Canalization of the Arensillo river, Villa Gonzales, Santiago.