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60. AMENDMENT TO IGA WITH ARIZONA STATE UNIVERSITY FOR PAVEMENT DESIGN RESEARCH Approve the 2nd Amendment to the Agreement between Maricopa County and Arizona State University to provide pavement design research towards the implementation of the Mechanistic-Empirical Pavement Design Guide. The County will participate in funding the research up to $50,000 per County fiscal year from Operating Funds, and this is the final year that the original agreement can be renewed. The payment schedule is established that MCDOT will pay 50% ($25,000) at the beginning of the assignment, 25% ($12,500) when 75% of the work is completed, and the final 25% ($12,500) at the end of the year. The Maricopa County Department of Transportation and ASU wish to use their resources to perform pavement design research towards the implementation of the new Mechanistic-Empirical Pavement Design Guide (MEPDG) in the County roadway design practice. The MEPDG was developed under the National Cooperative Highway Research Program (NCHRP) and currently is being reviewed by the American Association of State Highway and Transportation Officials (AASHTO), NCHRP, and the Departments of Transportation (DOTs) around the Country. The current AASHTO pavement design guide dated 1993, is the base for the MCDOT Roadway Design Manual, which will be superseded by the MEPDG in the near future. This research project will provide the required parameters that represent the County specific conditions. Since ASU has been taking the lead in developing the flexible pavement portion of the MEPDG, ASU would be in the best position to assist the County in the implementation process. ASU will perform research according to the Research Work Plan submitted by ASU and the County will receive the final reports that include the results and recommendations. Supervisorial District 1,2, 3, 4, & 5 (C-64-07-161-2-02)