He ordered the construction of another aqueduct for Mexico City. This aqueduct ran from Alberca Chica of Chapultepec, at the foot of the hill, along the boulevards of Tacubaya and Arcos de Belén to a point in the city given the name "El Salto del Agua" (The Waterfall, literally "Water Jump"). This work, 3,908 meters long with 904 masonry arches was finally finished in 1779, during the term of Viceroy Antonio María Bucareli y Ursúa. Portocarrero bore the cost from his own pocket.