Item Text

86. FEASIBILITY COST SHARE AGREEMENT WITH UNITED STATES ARMY CORPS OF ENGINEERS FOR AGUA FRIA TRILBY MCMICKEN DAM FLOOD RISK MANAGEMENT STUDY (Supervisorial Districts: 4 and 5) Approve Feasibility Cost Share Agreement (FCSA) for contract number FCD2026A010 for a flood risk management study for dam safety rehabilitation at McMicken Dam. The FCSA projected study cost is $3,000,000. The District's cost share as presented in the FCSA is in the amount of $1,500,000 and represents a 50% cost share between the Flood Control District of Maricopa County (FCDMC) and the United States Army Corps of Engineers (USACE). The funds are required to proceed with a study to assess the suitability of dam safety rehabilitation at McMicken Dam. The documents included are the main FCSA FCD2026A010 and the Certification Regarding Lobbying. McMicken Dam is an earthen embankment dam located in Maricopa County, south of US-60 and west of the Loop 303 in the west valley area. The dam was constructed by the U.S. Army Corps of Engineers in 1955 to protect Luke Air Force Base, the Litchfield Park Naval Air Facility, and agricultural areas from flooding. Today, the dam continues to provide flood protection to Luke Air Force Base as well as providing enhanced flood protection for properties located directly downstream, including significant portions of Surprise, El Mirage, Sun City, Youngtown, Litchfield Park, Avondale, and unincorporated areas of Maricopa County. Due to significant concerns regarding aging infrastructure, land subsidence, earth fissuring, urban encroachment, and current dam safety standards, the ability of the McMicken Dam to maintain the current level of protection needs to be evaluated. The FCDMC has determined that rehabilitation or replacement of the dam is required. (C-69-26-035-X-00)

Attachments (3)