Crystal Dam Crystal Dam Crystal Dam is a double curvature, concrete thin arch dam located six miles downstream from Morrow Point Dam on the Gunnison River in Colorado, United States. Crystal Dam is the newest of the three dams in Curecanti National Recreation Area; construction on the dam was finished in 1976. The dam impounds Crystal Reservoir. Crystal Dam and reservoir are part of the Bureau of Reclamation's Wayne N. Aspinall Unit of the Colorado River Storage Project, which retains the waters of the Gunnison River and its tributaries for agricultural and municipal use in the American Southwest. The dam's primary purpose
Miranda Dam Miranda Dam Miranda Dam () is a concrete buttress dam on the Douro, where the river forms the national border line between Spain and Portugal. It is located in the municipality Miranda do Douro, in Bragança District, Portugal. Construction of the dam began in 1955. The dam was completed in 1961. It is owned by "Companhia Portuguesa de Produção de Electricidade" (CPPE). Miranda Dam is an 80-m-tall (height above foundation) and 263-m-long buttress dam with a crest altitude of 535 m. The volume of the dam is 240,000 m³. The dam contains 4 crest spillways (maximum discharge 11,000 m³/s) and