The Agua Fria River 6 (AFR6) System is located in the city of Avondale, in Maricopa County, Arizona, a suburb on the west side of Phoenix. According to the National Levee Database (NLD), this levee system is referred to as the AFR6 levee system with a total length of approximately 0.31 miles. This levee system runs along the left (east) bank of the Agua Fria River, about 1,610 feet upstream of Lower Buckeye Road and ending at Lower Buckeye Road. The AFR6 Levee System is a compacted earthen levee embankment adjacent to the Agua Fria River. The seasonal river has a natural (earthen) bottom, trapezoidal channel. The riverside levee slopes (which also serve as channel slopes) are protected by an 8-foot thick soil cement revetment. AFR6 includes one side-drainage structure through the levee that outlets into the river and one road crossing. There are no floodwalls or pump stations associated with this levee system. No drop structures or groins traverse the channel along this levee system. The AFR6 System was federally authorized under The Phoenix, Arizona and Vicinity (including New River) Project, also known as the New River and Phoenix Streams Flood Control Project. This project was authorized by the Flood Control Act of 1965 (Public Law 89-298, 98th Congress). The AFR6 system was federally constructed between 1987 and 1990. Operation and maintenance responsibilities were transferred to the Flood Control District of Maricopa County (FCDMC) after construction.