Galivan Retarding Basin, located in Laguna Niguel, California, along the Oso Creek, serves as a crucial water resource infrastructure owned by the local government. Completed in 2000, this earth dam stands at 14 feet high and has a storage capacity of 169 acre-feet, primarily used for water supply purposes. With a drainage area of 13.4 square miles and a surface area of 17 acres, this basin plays a vital role in water management within Orange County.

Managed and regulated by the California Department of Water Resources, the Galivan Retarding Basin has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in September 2017. Despite its relatively modest size, this structure contributes to flood control and water storage in the region, ensuring the safety and security of the surrounding communities. With regular inspections and maintenance, the basin continues to fulfill its intended purpose effectively.

Situated within the Los Angeles District of the US Army Corps of Engineers, the Galivan Retarding Basin exemplifies the intersection of water resource management and climate resilience. With its strategic location and design, this infrastructure project underscores the importance of sustainable water infrastructure to address the challenges posed by a changing climate. As water resource and climate enthusiasts, the Galivan Retarding Basin offers a compelling case study in the critical role of local government in safeguarding water supplies and enhancing community resilience in the face of environmental uncertainties.