Don Pedro Dike A, located in La Grange, California, is a significant earth dam completed in 1971 for hydroelectric purposes. Managed by a public utility, the dam stands at 25 feet high and spans 1750 feet, with a storage capacity of 2.3 million acre-feet. Situated on the Tuolumne River, the dam serves multiple purposes including flood risk reduction, irrigation, and recreation, making it a crucial water resource in the region.

Designed by Bechtel, Don Pedro Dike A is regulated by the Federal Energy Regulatory Commission and the California Department of Water Resources. The dam has a hazard potential classified as significant, with a high risk assessment level. Despite its age, the dam is subject to regular inspections and is equipped with emergency action plans to ensure public safety in case of emergencies. With its strategic location and diverse functionalities, Don Pedro Dike A plays a vital role in water management and climate resilience efforts in California.

The dam's association with two other structures underscores its importance in the region's water infrastructure. Although lacking spillways, the dam's design and operational capabilities demonstrate a commitment to sustainable resource management and environmental stewardship. As climate change continues to impact water resources, Don Pedro Dike A stands as a testament to the resilience and adaptability of water infrastructure in safeguarding communities and ecosystems against the challenges of a changing climate.