Construcciýn de muros, protecciýn de taludes y recuperaciýn de la rasante hidrýulica, a base de concreto armado, mamposterýa de piedra braza y gaviones rellenos de piedra, en tramos crýticos de los rýos: Chico de los Remedios, San Mateo, Totolica y Tlalnepantla, municipios de Naucalpan, Atizapan de Zaragoza y Tlalnepantla, Estado de Mýxico

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