The Mendota Diversion, also known as Mendota Pool, is a vital infrastructure in California designed for flood risk reduction along the San Joaquin River. Completed in 1917, this buttress-type dam stands at a height of 23 feet and a length of 485 feet, with a storage capacity of 3000 acre-feet. Located in Firebaugh, Madera County, the dam serves multiple purposes including flood risk reduction, hydroelectric power generation, irrigation, and water supply for the region.

Managed by a public utility, the Mendota Diversion is subject to state regulation and inspection to ensure its safety and compliance with various standards. The dam has a significant hazard potential but has been assessed as satisfactory in condition, with the last inspection conducted in October 2020. The Emergency Action Plan (EAP) for the dam is regularly updated to meet guidelines and ensure preparedness in the event of emergencies.

With its strategic location and functions, the Mendota Diversion plays a crucial role in managing water resources and mitigating flood risks in the region. Supported by federal and state agencies, the dam's operations contribute to the overall water management efforts in California, benefiting both agricultural and urban communities that rely on a consistent water supply from the San Joaquin River.