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F-5. IGA WITH U.S. DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE FOR VINEYARD ROAD FLOOD RETARDING STRUCTURE REHABILITATION PROJECT AND RITTENHOUSE LEVEE PROJECT Approve Intergovernmental Agreement (IGA) FCD 2014A009 for the Vineyard Road Flood Retarding Structure (FRS) Rehabilitation Project and Rittenhouse Levee Project between the U.S. Department of Agriculture Natural Resources Conservation Service (NRCS) and the Flood Control District of Maricopa County (District). This IGA establishes a cost share for both Projects and establishes responsibilities with respect to project design, right-of-way acquisition, construction, construction management, and operations and maintenance. The estimated eligible cost share for both Projects will be District $22,157,600 (35%) and NRCS $41,149,800 (65%). NRCS currently has funds obligated for the Vineyard Road FRS Rehabilitation Project (Vineyard Project) in the amount of $34,503,000 (65%) with the District cost share being $18,578,500, (35%). The non-eligible costs, such as permits, gravel mulch, and landscape aesthetics, that NRCS does not cost share in will add an additional estimated $5,037,000 to the District’s Vineyard Project cost for a Total Vineyard estimated Project Cost of $58,118,500. The District’s estimated cost share including non-eligible costs for the Vineyard Project is $23,615,500. The Rittenhouse Levee Project (Rittenhouse Project) will be implemented when future NRCS funding becomes available. This IGA is effective the date it is fully executed by all parties. The end date of this IGA will be 5-years after the effective date. Vineyard Road FRS and Rittenhouse FRS are two of three earthen FRSs located in northwestern Pinal County, east of the Central Arizona Project (CAP) canal and south of Baseline Road. The Powerline, Vineyard Road, and Rittenhouse FRSs Rehabilitation or Replacement Project was a District sponsored planning study which analyzed alternatives and selected a preferred alternative that would correct the dam deficiencies, maintain the flood control benefits to downstream properties, and comply with NRCS and state dam safety requirements. The selected alternative for Vineyard Road FRS involves raising and rehabilitating the structure, and for Rittenhouse FRS, it involves converting the dam into a levee. Since both of these structures are part of the Williams-Chandler Watershed Agreement, both are part of this IGA. This IGA identifies the cost share responsibility for both the Vineyard Project and Rittenhouse Project. Currently only the Vineyard Project has been selected by NRCS to be fully cost share funded from planning through construction. Per NRCS funding authorization requirements, the Vineyard Project must be constructed by September 30, 2018. Currently the Vineyard Project is in the design phase. The Rittenhouse Project will be constructed when NRCS funds become available in the future. This IGA obligates NRCS funds for the project. In addition, this IGA requires that FCDMC reimburse NRCS for all assistance for this project. Terms of reimbursement will be established by a separate agreement. This item impacts Supervisorial District 1 and 2. (C-69-15-004-3-00)