Name: Executive project for the Río Dulce, sub-project for irrigation and drainage of Zone IV. Brief description: Executive project and general and special technical specifications for the bidding call for the Río Dulce project, Sub-project IV (1st stage, 16,000 ha). Location: Province of Santiago del Estero, Argentina. Year: 2005 Client: Agua y Energía Eléctrica S.E.