Gastaldi is a privately owned dam located in El Dorado, California, specifically in the city of Cold Springs. Built in 1951, this earth dam stands at a height of 36 feet and spans a length of 525 feet, with a storage capacity of 83 acre-feet. Its primary purpose is flood risk reduction, but it also serves irrigation and water supply needs in the area. The dam is regulated and inspected by the California Department of Water Resources (DWR) for safety and enforcement.

Despite its low hazard potential and satisfactory condition assessment, Gastaldi is subject to regular inspections and has an emergency action plan in place. The dam sits on Tr Webber Creek, with a drainage area of 0.11 square miles and a surface area of 6 acres. It is designed to handle maximum discharges and has a hydraulic height of 32.6 feet. The surrounding area is monitored for any potential risks, but the dam has not been significantly modified since its construction.

With its strategic location and crucial role in flood risk reduction, Gastaldi serves as a vital infrastructure for water resource management in the region. Its presence helps regulate water flow, mitigate potential flooding, and support agricultural and municipal water needs. As climate change continues to impact water resources, dams like Gastaldi play a crucial role in ensuring water security and resilience in the face of changing environmental conditions.