Interoffice Memorandum
DATE: March 25, 2026
TO: Mayor Jerry L. Demings and County Commissioners
FROM: Carrie Mathes, FNIGP, CFCM, NIGP-CPP, CPPO, C.P.M., Manager II, Procurement Division
CONTACT: Mike Drozeck, Manager, Stormwater Management Division
PHONE: 407-836-7945
SUBJECT: Consultant Selection, Request for Proposals Y26-803-CC, Real-Time Flood Forecasting for Orange County
ACTION REQUESTED:
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Selection of Halff Associates, Inc. to provide Real-Time Flood Forecasting for Orange County, Request for Proposals, Y26-803-CC.
Further request Board authorization for the Procurement Division to negotiate and execute a contract within the not-to-exceed budget of $1,000,000. ([Public Works Department Stormwater Management Division] Procurement Division)
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PROCUREMENT:
This contract provides for the development and deployment of a real-time flood predictive model to improve forecasting of flood events up to 72 hours in advance of severe weather. This capability is critical to enhancing Orange County’s emergency preparedness and response.
FUNDING:
This project is federally funded through the U.S. Department of Transportation, Federal Highway Administration. Funding is available in account number 1023-072-2753-3197.
APPROVALS:
The Public Works Stormwater Management Division concurs with this recommendation.
REMARKS:
Four proposals were received in response to this Request for Proposals (RFP) and evaluated in accordance with the criteria contained in the RFP. The proposals submitted by AeroNex Dynamics, AQUATRAX, and Excavators of Central Florida were deemed non-responsive for failing to submit a valid proposal, as none of the required forms were included in their submittal.
Increasing hurricane activity and recent storm events have resulted in significant flooding and impacts across Orange County, with stormwater-related disruptions continuing to grow. To address these challenges, the County initiated development of a Real-Time Flood Predictive Model to forecast flooding across multiple storm events and support preparedness, response, and long-term infrastructure planning.
The County began model development in 2020, and the current FloodWise platform provides real-time forecasting in select basins. This effort expands the model into a comprehensive, countywide system capable of delivering real-time flood predictions up to 72 hours in advance, enhancing emergency management, transportation planning, and overall system resilience.
The proposal was evaluated by the Procurement Committee on March 25, 2026. Commissioner Christine Moore was assigned to the Procurement Committee.
The consensus scores of the Procurement Committee are attached.