Packer Lake, located in Sierra County, California, is a rockfill dam constructed in 1899 by the USDA Forest Service. Standing at a height of 11 feet and a length of 90 feet, this dam serves a primary purpose of 'Other' and is primarily regulated and managed by the Forest Service. The dam's spillway is uncontrolled with a width of 20 feet, and it has been rated as having a 'Significant' hazard potential.

Despite not having a designated storage capacity or surface area, Packer Lake remains a notable water resource in the region. With its picturesque location and historical significance, this dam continues to play a vital role in water management and conservation efforts in California. While its condition assessment is currently 'Not Rated', ongoing risk management measures are in place to ensure the safety and integrity of the structure for the surrounding ecosystem and communities. For water resource and climate enthusiasts, Packer Lake serves as an intriguing example of early dam construction and the importance of sustainable water resource management in the face of changing climate patterns.