Steidlmayer #3 is a privately owned dam located in Butte Sink, California, completed in 1961 for the primary purpose of water supply, specifically for irrigation and water supply. This earth-type dam stands at a height of 49 feet, with a hydraulic height of 43.4 feet and a length of 600 feet. It has a storage capacity of 82 acre-feet and covers a surface area of 6 acres, serving the surrounding area with water resources.

Maintained by the California Department of Water Resources and regulated by the Safety of Dams program, Steidlmayer #3 has a low hazard potential and is in satisfactory condition, as assessed in September 2017. Regular inspections ensure its safety, with the most recent inspection carried out in January 2021. Despite its age, the dam continues to provide essential water resources to the region, contributing to agricultural irrigation and general water supply needs in the area.

Located in Sutter County, California, Steidlmayer #3 plays a crucial role in water management in the region, under the oversight of state regulatory agencies. With its strategic position and reliable infrastructure, this dam remains a key asset for water resource enthusiasts and climate advocates, showcasing the importance of sustainable water supply infrastructure in supporting communities and ecosystems in California.