Pacoima Wash is a concrete-lined channel located in the San Fernando Valley region of Los Angeles, California. It serves as a flood control system, directing stormwater runoff from surrounding areas into the Los Angeles River. The wash is approximately 10 miles long and plays a crucial role in managing water flow during heavy rains. The area surrounding Pacoima Wash is home to various wildlife and plant species, contributing to local biodiversity. Efforts have been made to enhance the ecological health of the wash, including habitat restoration projects that aim to improve conditions for species like birds and small mammals.