Amistad Dam is the largest of the storage dams and reservoirs built on the international reach of the Rio Grande River. The dam was dedicated in 1969 by United States President Richard M. Nixion and Mexico President Diaz Ordaz.
The primary purpose for which Amistad Dam was constructed is flood control and water conservation storage for the benefit of the United States and Mexico. The dam is 6.1 miles (10 km) long, stands 254 feet (77.4 meters) above the riverbed and consists of a concrete gravity spillway section within the river canyon flanked by earth embankments. The dam has sixteen (16) spillway gates capable of releasing 1,500,000 cubic feet (42,670 cubic meters) per second. The dam is operated and maintained jointly by the United States and Mexico Sections of the IBWC. The reservoir impounded by the dam extends up the Rio Grande River approximately 75 miles has a surface area of 65,000 acres (26,300 hectares) and a volume of 3,124,260 acre feet (3,886,578,000 cubic meters) at conservation elevation of 1117.00 feet (340.460 meters) above mean sea level. See the official Amistad Dam & Power Plant Brochure. View the Joint Report of the Technical Advisors of the IBWC regarding the Geotechnical, Electrical, Mechanical and Structural Safety of Amistad Dam
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