Sobrante Clearwell is a crucial water resource infrastructure located in El Sobrante, California. This public utility facility plays a vital role in ensuring water supply for the region, with a primary purpose of water supply. Completed in 1964, this earth-type dam stands at a height of 28 feet and has a hydraulic height of 25 feet, providing a maximum storage capacity of 25 acre-feet.

Managed and regulated by the California Department of Water Resources (DWR) for safety and enforcement, Sobrante Clearwell has a high hazard potential but is deemed to be in satisfactory condition as of the last assessment in September 2017. The dam's last inspection was conducted in March 2021, with a frequency of one inspection per year. Despite its age, the facility continues to meet the guidelines for emergency action plans and risk management measures, ensuring the safety and security of the surrounding community in the event of an emergency.

With a location offstream and a surface area of 2 acres, Sobrante Clearwell serves as a critical component of the water infrastructure in Contra Costa County. This dam, under the jurisdiction of the Sacramento District, exemplifies the importance of proper maintenance and oversight in safeguarding water resources amidst the challenges posed by climate change. For water resource and climate enthusiasts, Sobrante Clearwell stands as a testament to the essential role of infrastructure in ensuring the sustainable management of water in California.