Sunflower is a privately owned dam located in Red Bank, California, along the Sunflower Gulch. Completed in 1976, this earth dam stands at 50 feet high and has a storage capacity of 420 acre-feet. Its primary purpose is flood risk reduction, with additional functions such as irrigation and water supply. The dam covers a surface area of 21 acres and serves a drainage area of 3.86 square miles.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Sunflower Dam is subject to state regulations, inspections, and enforcement to ensure its structural integrity and safety. The dam has a low hazard potential and was last inspected in October 2020, with a satisfactory condition assessment reported in September 2017. Although there are no associated structures or locks, the dam plays a crucial role in protecting the surrounding area from potential flooding events.

Situated in Tehama County, Sunflower Dam is strategically positioned to mitigate flood risks and provide essential water resources for the region. With its reliable flood control capabilities and contribution to irrigation and water supply, Sunflower serves as a vital infrastructure asset in the face of changing climate patterns and water resource management challenges in California.