Located in Placer County, California, Reservoir A is a vital water supply structure managed by a public utility. This earth dam stands at a height of 93 feet, with a hydraulic height of 88 feet, and a length of 516 feet. Completed in 1973, it has a storage capacity of 180 acre-feet and serves the primary purpose of water supply for the surrounding area.

Maintained by the California Department of Water Resources (DWR), Reservoir A is subject to regular inspections, with its condition assessed as satisfactory as of September 2017. Despite being classified as having a high hazard potential, the reservoir's emergency action plan (EAP) was last revised in January 2021, reflecting a commitment to ensuring the safety and security of the dam and its surrounding communities in the event of an emergency. With a drainage area of 0.93 square miles and a proximity of 7.5 miles to Truckee, this reservoir plays a crucial role in water management in the region.

With a focus on water supply and the regulation of dams, Reservoir A in California's Truckee region stands as a testament to effective infrastructure management in the face of climate change challenges. Its location on the West Martis Creek and its capacity to store 180 acre-feet of water make it a crucial resource for the surrounding communities. As climate change continues to impact water resources, the maintenance and upkeep of structures like Reservoir A are essential to ensuring a secure and sustainable water supply for the future.