Balch Afterbay, located in Fresno, California, near Balch Camp, is a private hydroelectric facility along the North Fork Kings River. Completed in 1928, this concrete dam stands at a height of 165 feet and has a storage capacity of 325 acre-feet. With a normal storage level of 317 acre-feet and a maximum discharge rate of 43,000 cubic feet per second, this dam plays a crucial role in water resource management in the area.

Managed by the Federal Energy Regulatory Commission, Balch Afterbay serves as a significant water storage and hydroelectric generation facility. Despite its age, the dam is considered to have a significant hazard potential, with a moderate risk rating of 3. Regular inspections by state and federal agencies ensure its structural integrity and compliance with safety regulations. The dam's uncontrolled spillway and multi-arch core design further highlight its importance in managing water flow in the region.

As a key component of the local water infrastructure, Balch Afterbay plays a vital role in regulating water levels and generating hydroelectric power. With its strategic location and design features, this dam stands as a testament to the engineering ingenuity of its time and continues to be a crucial asset in water resource management and climate resilience efforts in California.