Yarnell Debris Basin, located in Los Angeles, California, was completed in 1963 with a primary purpose of debris control along Tr Bull Canyon. This earth dam stands at a height of 42 feet, providing storage of 77.5 acre-feet and covering a surface area of 10 acres. The basin has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in September 2017.

Managed by the local government, Yarnell Debris Basin is regulated by the California Department of Water Resources' Safety of Dams division, ensuring that the structure is inspected, permitted, and enforced for compliance with state regulations. Although the dam has not undergone modifications in recent years and lacks certain features like spillways or outlet gates, it serves a crucial role in reducing flood risks in the region. With its close proximity to residential areas, the basin plays a vital role in protecting communities from potential debris flow events during heavy rainfall.

A noteworthy feature of Yarnell Debris Basin is its association with the U.S. Army Corps of Engineers, Los Angeles District, highlighting the collaborative efforts between federal and local agencies in managing water resources and mitigating climate-related risks. With its strategic location and effective debris control measures, Yarnell Debris Basin stands as a testament to the importance of proactive infrastructure in safeguarding against natural disasters and ensuring the resilience of communities in the face of changing environmental conditions.