Parker Dam is a concrete arch dam located on the Colorado River, straddling the border between California and Arizona. Completed in 1938, it was built to create Lake Havasu, which serves as a water reservoir and recreational area. The dam is also crucial for hydroelectric power generation and irrigation. The dam stands 320 feet tall and is 735 feet long, making it one of the deepest dams in the United States. It is operated by the U.S. Bureau of Reclamation and plays a significant role in managing water resources in the Colorado River Basin.