Item Text

F-2. IGA WITH CITY OF SCOTTSDALE FOR DESIGN AND DETENTION BASINS RIGHTS-OF-WAY ACQUISITION OF THE GRANITE REEF WATERSHED DRAINAGE IMPROVEMENTS PROJECT Approve Intergovernmental Agreement (IGA) FCD 2014A015 for the design and the detention basins rights-of-way acquisition for the Granite Reef Watershed Drainage Improvements Project (Project [#265]), between the City of Scottsdale (City) and the Flood Control District of Maricopa County (District). The estimated total cost of components associated with this IGA is $3,500,000 with the cost shared at 50%/50%. The watershed of Granite Reef Wash extends from the Arizona Canal on the north to the Salt River on the south, and from approximately Hayden Road on the west to the Loop 101 Freeway on the east. Approximately 1,081 residential and commercial properties are located within the floodplain of Granite Reef Wash. The City of Scottsdale completed flood hazard mitigation studies for the watershed in 2009 and 2014. The 2014 study developed drainage improvement concepts that include: storm drain inlets and laterals to be added to existing storm drains that convey flows to the west to Indian Bend Wash, two detention basins, new storm drains, and channels. This Agenda Item impacts Supervisorial District 2. (C-69-15-033-3-00)