Located in Tuolumne County, California, Lyons is a private hydroelectric dam on the South Fork Stanislaus River. Completed in 1930, this concrete arch dam stands at a height of 132 feet and spans 535 feet in length, providing essential services such as fire protection, irrigation, and hydroelectric power generation. With a maximum storage capacity of 6,228 acre-feet and a drainage area of 66.8 square miles, Lyons plays a crucial role in managing water resources in the region.

Managed by the Federal Energy Regulatory Commission, Lyons has a controlled spillway width of 284 feet and four Tainter radial gates. The dam's hazard potential is classified as high, with a very high risk assessment rating. While the condition assessment is not available, regular inspections and enforcement by state agencies ensure its operational safety and compliance with regulations. As a key structure in the water infrastructure of California, Lyons exemplifies the intersection of water resource management and climate resilience in the face of varying environmental challenges.

The dam's location in Long Barn, California, and its role in the conservation of water resources highlight the importance of sustainable practices and infrastructure investment in mitigating the impacts of climate change. With its historical significance and continued operation under state jurisdiction, Lyons stands as a testament to the ongoing efforts to balance water resource utilization with environmental conservation in the face of evolving climate patterns. For water resource and climate enthusiasts, Lyons offers a fascinating case study in the intersection of engineering, policy, and environmental stewardship.