Title
Request Authorization to Accept Funding and Enter Into an Intergovernmental Agreement with Flood Control District of Maricopa County and City of Scottsdale for Fiscal Year 2025 Capital Improvement Program - Deer Valley Channel Hazard Mitigation Project (Ordinance S-52480) - District 2
Description
Request authorization for the City Manager, or their designee, to accept funding and enter into an agreement with the Flood Control District of Maricopa County (FCDMC) and City of Scottsdale for the Fiscal Year 2026 Capital Improvement Program related to the Deer Valley Hazard Mitigation Project. Additionally, request authorization for the City Treasurer to accept, and for the City Controller to disburse, all funds associated with this project. The City's contribution to this project is anticipated to not exceed $950,000.
Report
Summary
As the design of the Paradise Ridge Drainage Improvements Project progressed, it became clear that additional improvements were needed on the east side of Scottsdale Road. These enhancements are essential to capture flows from the Deer Valley Wash and convey them effectively to the Paradise Ridge Improvements project channel. This additional scope aims to further reduce the existing floodplain west of Scottsdale Road with the City of Phoenix.
The work at Scottsdale Road will require this Intergovernmental Agreement (IGA) between the FCDMC, the City of Phoenix, and the City of Scottsdale to outline the roles and responsibilities of the project partners with respect to the design, construction, cost sharing and other activities associated with a box culvert crossing Scottsdale Road.
This project aims to address flooding issues affecting residents and businesses south of Loop 101, ultimately reducing the risk of flooding in the area.
Financial Impact
The estimated cost for these additional improvements is $3.8 million based on the best available information at the time of this agreement. The actual expenses will be shared as follows: FCDMC will cover 50 percent with each city contributing 25 percent as project partners.
The City's contribution is not anticipated to exceed $950,000. This amount will be funded through a combination of sources: the Local Drainage Solutions Program, the Arizona State Land Department (ASLD) Paradise Ridge IGA (Ordinance S-46461), and the Mortenson Development Agreement (Ordinance S-52226).
Concurrence/Previous Council Action
- The City Council approved an IGA with ASLD regarding the reimbursement procedure for the cost of the Paradise Ridge Drainage Improvements Project (Ordinance S-46461) on June 18, 2020.
- The City Council approved a Development Agreement with Mortenson Development regarding a contribution to the cost of the Paradise Ridge Drainage Improvements Project (Ordinance S-52226) on June 20, 2025.
Location
Deer Valley and Scottsdale Road
Council District: 2
Department
Responsible Department
This item is submitted by City Manager Ed Zuercher and the City Engineer.