AGENDA ITEM - GILBERT-CHANDLER ADMSP UPDATE_CONTRACT 2023C017.DOCX

Maricopa County — Formal (2023-12-06)

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Contact Name: Obenia Kingsby II                                                                                    C-69- 24
Phone Number: 506-5469                                                                                                Approval XX/XX/XXXX
Return To: Sharon Rogers – FCDX
Phone Number: 506-6764  
Item Title
Gilbert-Chandler Area Drainage Master Study/Plan Update – On-Call CONTRACT No. FCD 2023C017
Action Requested/Background: 
Award Contract FCD 2023C017 On-Call Services to JE Fuller Hydrology & Geomorphology, Inc. (Consultant) 
to provide professional engineering services to identify and characterize existing drainage, flooding 
sources, and flooding hazards within the study area primarily due to land use changes, previous study age, 
hydrologic methods, modern mapping technologies, and population growth within the watershed. 
(Contract FCD 2023C017). The estimated contract price is $1,200,000.00. The contract will be 
effective for 730 calendar days, from the date of the Notice to Proceed to Final Completion with possible 
extensions. The Flood Control District of Maricopa Country (District) and Consultant will mutually agree 
to a detailed scope of work for each work assignment. This is a qualifications-based selection in 
accordance with the Maricopa County Procurement Code, Article 5, Paragraph 504 and Article 5 
Procurement Procedures Manual, Chapter II – Section 2.
This Agenda Item impacts Supervisorial District 1, District 2, and District 5.
Additional Information/History:
Flood Control District FY2021 Area Drainage Master Study/Plan (ADMS/P) Prioritization Analysis, dated 
July 2020, determined the need to update the plan based on the age of the previous study and modern 
modeling technologies. The previous study/plan completed were the Gilbert-Chandler ADMS (1992-93) 
and Higley ADMP (1999-2000).
Expenditure Impact by FY: 
FY 24:
$200,000
FY 25:
$350,000
FY 26:
$350,000
FY 27:
$300,000