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F-3. IGA WITH CITY OF GLENDALE FOR PRELIM DESIGN OF AT&SF RAILROAD CHANNEL PROJECT Approve Intergovernmental Agreement (IGA) FCD 2008A006 between the Flood Control District of Maricopa County (District) and the City of Glendale (Glendale) to cost share preliminary planning, engineering, and professional services for a Candidate Assessment Report (CAR) to develop preliminary alternatives for the proposed Atchison, Topeka and Santa Fe (AT&SF) Channel and Basin project (PCN 470.07.20). The total cost of the project ($205,798) will be shared equally between the District and Glendale This AT&SF Channel and Basin project was originally identified in the White Tanks Area Drainage Master Plan Update (ADMP) to provide a regional drainage outfall for this area as well as alleviate flooding problems impacting existing and proposed transportation infrastructure. The proposed channel extended from the Dysart Drain north along the Burlington Northern Santa Fe (BNSF) Railroad spur to Waddell Road and included a peak reducing basin at Olive Avenue . Several proposed projects including the Northern Parkway , expansion of the BNSF facilities, the Woolf Properties warehouse and distribution center complex, and the existing Surprise Water Reclamation Plant at Cactus Road , make the original alignment infeasible. Glendale proposed a CAR to study alternatives and develop a preferred solution that would provide the needed outfall without overtaxing the Dysart Drain, alleviate the existing flooding problems at road intersections and along the railway, and integrate with the proposed Northern Parkway Improvements so that public infrastructure investments can be optimized. The IGA covers the development of the CAR and conceptual plans for a preferred alternative. The study includes data collection, updates to the current area hydrology model, and development of alternative alignments which satisfy the project constraints for area flood mitigation. A stakeholder selection process will be used to screen and refine the proposed alternatives to a preferred recommendation. The proposed alternatives will be evaluated in context with the Northern Parkway Design Concept Report. Extensive coordination between the two (2) projects is planned to optimize cost and utility of the final solution. In addition, an assessment of the recreational and multimodal trail opportunities associated with the proposed channel will be prepared to determine the feasibility of including those components in the final solution. The total expense of the CAR is estimated to be (not to exceed) $205,798 and is to be cost shared equally between the District ($102,899) and the Glendale ($102,899). This project is in Supervisory District 4 (C-69-09-021-3-00)