Lower Lindsey is a privately owned hydroelectric dam located on Lindsey Creek in Nevada County, California. Built in 1870, this earth dam stands at a height of 16 feet and has a hydraulic height of 12.5 feet, with a length of 487 feet. The dam has a storage capacity of 300 acre-feet and a maximum discharge of 240 cubic feet per second, serving as a source of renewable energy in the region.

Managed by the Federal Energy Regulatory Commission, Lower Lindsey has a low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 42 feet and is regulated by the Department of Water Resources for safety and inspection. Despite its age, the dam has not undergone recent condition assessments, but emergency action plans have been prepared to meet guidelines in case of unforeseen events.

As a vital piece of infrastructure in the area, Lower Lindsey plays a crucial role in water resource management and climate resilience efforts. With its historical significance and contribution to the region's energy needs, the dam stands as a testament to the intersection of human ingenuity and environmental stewardship in harnessing the power of water for the benefit of communities and ecosystems alike.