Ice House Main is a rockfill dam located in Coloma, California, with a height of 148 feet and a length of 1440 feet. Completed in 1959, the dam serves primarily for hydroelectric purposes, providing a normal storage capacity of 34,000 acre-feet and a maximum storage of 43,496 acre-feet. The dam, owned by a public utility, is regulated by the California Department of Water Resources and the Safety of Dams agency, ensuring regular inspections and enforcement of safety measures.

The dam's reservoir covers a surface area of 678 acres and has a drainage area of 27.2 square miles, with a controlled spillway width of 40 feet. Its maximum discharge capacity is 22,500 cubic feet per second, making it a crucial water resource in the region. The dam's hazard potential is rated as high, with a very high risk assessment category, indicating the importance of proper risk management measures and emergency action planning.

Managed by the Federal Energy Regulatory Commission, Ice House Main is a key component in the region's water infrastructure, providing not only hydroelectric power but also recreational opportunities for the local community. With its strategic location on the South Fork Silver Creek and its significant storage capacity, the dam plays a vital role in water resource management and climate resilience efforts in El Dorado County, California.