Henry J. Mills No. 2 is a vital water resource infrastructure located in Riverside, California, completed in 1996 with a primary purpose of water supply. This earth dam stands at a height of 34 feet and has a hydraulic height of 30.3 feet, providing a storage capacity of 92 acre-feet. The dam covers a surface area of 5 acres and serves a drainage area of 0.1 square miles, ensuring a steady water supply for the region.

Managed by a public utility, Henry J. Mills No. 2 is regulated by the California Department of Water Resources (DWR) for safety and compliance. The dam has a high hazard potential but is currently assessed as satisfactory in condition, with the last inspection conducted in October 2020. With state permitting, inspection, and enforcement in place, this crucial water infrastructure plays a crucial role in supplying water to the surrounding communities in Riverside County.

Although the dam does not have a spillway or outlet gates, its design and construction meet regulatory standards for water storage and management. With a dedicated emergency action plan and regular risk assessments, Henry J. Mills No. 2 ensures the safety and security of the local population in case of any unforeseen events. As climate change continues to impact water resources, this dam stands as a crucial asset in securing the water supply for Riverside and highlights the importance of sustainable water management practices in the face of a changing climate.