Reservoir A, located in Nez Perce County, Idaho, is a vital water resource managed by the Bureau of Reclamation for irrigation purposes. This Earth dam, completed in 1906, stands at a height of 61 feet and has a storage capacity of 3,300 acre-feet. Situated on Lindsay Creek, the reservoir covers an area of 155 acres and serves as a crucial water source for agricultural activities in the region.

Despite its age, Reservoir A has undergone modifications in 1999 to enhance its structural integrity and seismic resilience. The dam's spillway, with a width of 400 feet, helps manage water overflow during periods of high discharge. With a high hazard potential and moderate risk assessment rating, the reservoir is closely monitored by the Bureau of Reclamation to ensure its safety and functionality. The emergency action plan for the dam was last revised in December 2019, highlighting the importance of preparedness in case of unforeseen events.

As a key component of the irrigation infrastructure in the area, Reservoir A plays a crucial role in water management and agricultural sustainability. With its historical significance and strategic location, this reservoir continues to be a valuable asset for water resource management and climate resilience in Nez Perce County, Idaho.