Collier County Coastal Storm Risk Management Feasibility Study for Hydrodynamic Modeling and Initial Water Quality Evaluations

Description

Collier County and the Norfolk District, U.S. Army Corps of Engineers (USACE), are partnering to conduct a Coastal Storm Risk Management (CSRM) Study to determine the Federal interest and feasibility of alternatives to mitigate coastal flood risk in Collier County, Florida. The CSRM Study is in the Feasibility Study (FS) phase in which alternatives are proposed and developed to conceptual/preliminary design level, benefit/cost analyses are conducted, and environmental studies are completed to comply with the National Environmental Policy Act (NEPA). The magnitude of the feasibility study will require an Environmental Impact Statement (EIS).A component of the FS / EIS is the analysis of expected impacts of certain proposed alternatives on tidal circulation and water quality in local waters, tidal rivers, streams and embayments in Collier County, including but not limited to those around Naples and Marco Island. These waters are shown (Figure 1). The purpose of the modeling is to support determination of whether the proposed alternatives will have significant impacts on circulation and water quality, and if so, to what degree and what potential mitigation actions might be applied required.Brief Description of Anticipated Work:Objective 1: Participate in the development of the components of the FS / EIS. Objective 2: Compile existing data and pertinent literature required to support the hydrodynamic and water quality modeling and analyses necessary as a component of the FS / EIS. Objective 3: Hydrodynamic modeling of the nearshore waters of Collier County, Florida will be performed to support the efficient and stable simulation of processes in these waters. Objective 4: Hydrodynamic modeling and analysis of circulation, flushing, and transport of conservative constituents will be performed to support the formulation and evaluation of alternative(s) – as proposed by USACE – for mitigating coastal flooding impacts in Collier County. Alternatives include beach nourishment and dune restoration along most of Collier County beaches, flood gate at Bonita Beach Road with an associated floodwall along Bonita Beach Road, flood gate and wall along Seagate Drive, tide gates with associated pump stations and structural tie-ins to land at Doctor’s and Wiggin’s passes, a floodwall along a significant portion of the Tamiami Trail Road with a flood gate on the Gordon River. Successful applicants should have expert knowledge and work experience in coastal Florida waters. The candidates should have prior experience with hydrodynamic modeling, preferably along the Florida coast, and associated water quality parameter modeling with sufficient expertise to model the impacts of proposed coastal storm protective features. The candidates will also be required to submit (1) draft report and one (1) final report for each year the project is monitored. A final objective will be to publish the reports, modified as needed, in a peer-review science journal for the widest dissemination of the results throughout the practicing restoration community as possible.

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