Lake Combie, located in Magnolia, California, is a captivating water resource with a rich history dating back to its completion in 1928. This concrete dam stands at an impressive 95 feet tall, with a hydraulic height of 90 feet and a structural height reaching 100 feet. The reservoir boasts a storage capacity of 5,555 acre-feet, serving primarily for irrigation purposes while also supporting hydroelectric power generation and water supply.

Managed by the Federal Energy Regulatory Commission, Lake Combie is subject to rigorous state regulation, inspection, and enforcement to ensure its safety and efficiency. The dam spans 762 feet in length, covering a surface area of 360 acres and draining a 135.6-square-mile watershed area. With a maximum discharge capacity of 28,700 cubic feet per second and a spillway of uncontrolled type, this reservoir poses a high hazard potential while maintaining a moderate risk assessment rating.

As a key water resource in Nevada County, Lake Combie provides essential services to the local community and beyond. Its picturesque setting along the Bear River, with the involvement of notable designers like Fred Tibbits and State Engineer, adds to the allure of this hydrological gem. With its strategic location and significant storage capacity, Lake Combie remains a vital asset for irrigation, hydroelectric power, and water supply in the region, making it a must-visit destination for water resource and climate enthusiasts seeking to appreciate the intersection of engineering marvels and natural beauty.