Tampa Bay Region - Southwest Florida Water Management District

N394
WMP - Hillsborough County - Delaney/Archie Creek Watershed Update
Project Type
AORs
Flood Protection
Cooperative Funding
Strategic Initiatives
Floodplain Management
Hillsborough County BOCC
Cooperator(s)
Project Manager Robin Bailey
Task Manager(s)
Status
Proposed Coop. Funding Application
Recommendation
Fund as a 1A priority. This request is for continued funding of a multi-year funded project that updates the Watershed Management
Plan for the Delaney/Archie Creek Watershed.
Description
This is a multi-year funded project to update the Watershed Evaluation and Watershed Management Plan elements of the District's
Watershed Management Program (WMP) for the Delaney/Archie Creek Watershed. The project is a second update to a study
completed in 2000 and updated in 2007, covering an area of 34.3 square miles within Hillsborough County. A Watershed
Management Plan provides a method to evaluate the capacity of a watershed to protect, enhance, and restore water quality and
natural systems, while achieving flood protection. The Watershed Evaluation tasks include the collection of existing data,
development of the geodatabase, Geographical Information System (GIS) processing, field reconnaissance, and development of
preliminary model features. The information is organized as a geodatabase in the GIS. The Watershed Evaluation establishes the
complexity of the watershed and provides a geodatabase that defines the watershed's natural conveyance and storage features,
and stormwater infrastructure. The Watershed Management Plan tasks include watershed model parameterization, computer
modeling, floodplain analysis, peer review of floodplain results, public notification, public meeting, Governing Board approval of
floodplain results, surface water resource assessment (water quality analysis), establishment of level of service (LOS), and Best
Management Practices (BMP) alternative analysis. With FY2013 funding, the Watershed Evaluation and model development will be
completed. Future funding will be required to complete the Watershed Management Plan.
Benefits
Completing elements of the District's Watershed Management Program is one of the District's Strategic Priorities for managing the
water resource, and provides information to local governments to address land use changes and stormwater management within
a specific watershed. The information developed provides the science for the District's resource management and Environmental
Resource Permitting (ERP) responsibilities. It assists local governments with their land management responsibilities by
identifying the floodplain, establishing a level of service, evaluating BMPs to address level of service deficiencies, and provides a
geodatabase with projected results from watershed model simulations for floodplain and water quality management.
Costs
The projected cost for this project is $700,000 of which the District's share is $350,000 and the County's share is $350,000. The
District's funding, on a watershed area basis, is split 91% - 9% between the Alafia River and Hillsborough River Basins. For
FY2012, $200,000 is included in the Basins' budget ($182,000 from the Alafia River Basin and $18,000 from the Hillsborough River
Basin) and Hillsborough County will contribute $200,000 for a total of $400,000. With FY2013 funding, District $87,500, County
$87,500, total $175,000, work on Watershed Evaluation tasks will begin. Future funding, $125,000, will be required to complete the
Watershed Evaluation tasks and to complete the Watershed Management Plan tasks. Future funds identified for the project are
contingent upon approval of such amounts by the Governing Board in the annual budget. When each element is completed, the
project cost and scope may require refinement based on the information gathered and unforeseen circumstances. The District
funding amount shown in the table includes staff salaries.
Additional Information
The WMP includes five major elements: 1) Topographic information, 2) Watershed Evaluation, 3) Watershed Management Plan, 4)
Implementation of Best Management Practices, and 5) Maintenance of Watershed Parameters and Models. Implementing
elements of the WMP with local governments is one of the District's Strategic Priorities. The District has worked with the County to
develop an implementation schedule by watershed based on their projected funding levels. Hillsborough County will manage this
project. A cooperative funding agreement will be developed as a multi-year funded project contingent on the approval of future
funding to complete the project. This project will require a cooperative funding request each fiscal year until completed. The District
and Hillsborough County are cooperating technical partners (CTP) with FEMA, the floodplain results will be submitted to FEMA.
The flood insurance rate map (FIRM) panels will be updated by FEMA based on their schedule and budget.
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