El Piojo, also known as Dam #9, is a federal-owned structure located in Monterey, California, near the city of Bradley. Completed in 1961, this earth dam stands at a height of 20 feet and has a primary purpose of fire protection, stock, or small fish pond. The dam, situated on the El Piojo River, has a storage capacity of 50 acre-feet and serves as a vital resource for the surrounding area.

Managed by the US Army, El Piojo has a low hazard potential and is regularly inspected to ensure its safety and functionality. Despite its moderate risk assessment rating, the dam plays a crucial role in providing water for fire protection and supporting local wildlife. With a spillway width of 10 feet and a maximum discharge of 786 cubic feet per second, El Piojo is equipped to handle potential flood events and maintain the water supply for its designated purposes.

Overall, El Piojo serves as an essential water resource in the region, offering both practical benefits and environmental support. As a key element in the landscape of Monterey County, this dam stands as a testament to the importance of water management and conservation efforts in the face of changing climate conditions. Its presence underscores the critical role that infrastructure plays in safeguarding our water supply and natural habitats.