Matanzas Creek Reservoir, located in Santa Rosa, California, is a crucial water resource managed by the local government to mitigate flood risks in the region. Constructed in 1963 by the USDA NRCS, this earth dam stands at a height of 95 feet and has a storage capacity of 1500 acre-feet. The reservoir spans 62 acres and serves the primary purpose of flood risk reduction along the Matanzas Creek.

With a high hazard potential, Matanzas Creek Dam undergoes regular inspections and is deemed to be in satisfactory condition as of the last assessment in September 2017. The dam is regulated by the California Department of Water Resources and falls under the jurisdiction of the Safety of Dams program. Despite its age, the dam continues to effectively manage water flow and provide flood protection to the surrounding areas.

Matanzas Creek Reservoir plays a critical role in safeguarding the community against flooding events, highlighting the importance of proper maintenance and oversight of water infrastructure. As climate change impacts become more pronounced, the efficient management of water resources like Matanzas Creek will be essential in adapting to evolving hydrological conditions and ensuring the resilience of the region's water supply and flood control systems.