Alluvial Drain Detention, located in Clovis, California, is a crucial infrastructure owned by a public utility aimed at reducing flood risks along the Tr Big Dry Creek. Completed in 1994, this earth dam stands at 12 feet high with a hydraulic height of 8.4 feet, providing a storage capacity of 832.7 acre-feet across its 67.5-acre surface area. With a drainage area of 2.97 square miles, this detention structure plays a vital role in flood risk reduction efforts in Fresno County.

Managed and regulated by the California Department of Water Resources (DWR) and Safety of Dams program, Alluvial Drain Detention is subject to regular inspections to ensure its satisfactory condition and high hazard potential are adequately addressed. Despite its high hazard classification, the dam's condition was last assessed as satisfactory in September 2017, with the most recent inspection conducted in February 2021. As a critical component of the state's flood risk reduction strategy, Alluvial Drain Detention plays a significant role in safeguarding the local community from potential inundation events.

With its strategic location and effective design, Alluvial Drain Detention serves as a key flood risk reduction infrastructure in California's water resource management system. As a vital earth dam structure along Tr Big Dry Creek, this facility exemplifies the state's commitment to ensuring public safety and mitigating the impacts of flooding in Fresno County. Through ongoing regulatory oversight and regular inspections, Alluvial Drain Detention remains a resilient and essential asset in the state's efforts to protect communities and infrastructure from the threat of inundation.