Key Biscayne Feasibility Study, FL

May 2023

FACT SHEET
Key Biscayne Feasibility Study, FL
Investigations (I)
Congressional Districts: 24, 27, 28

 

 

1. DESCRIPTION

The purpose of this study is to address protection of critical infrastructure, reduction of structural damages, and evacuation route protection along the Miami-Dade County’s Coastal Storm Risk Management (CSRM) project's Key Biscayne Segment in response to the risks and effects of coastal storms and associated impacts such as sea level rise, storm surge, and extreme wind and tidal effects. The village of Key Biscayne, Florida is a densely populated barrier island (approximately 1.4 square miles with approximately 13,000 people (Census 2020)) located just east of Miami, south of Miami Beach, with a western shoreline on Biscayne Bay (back bay) and an eastern shoreline on the Atlantic Ocean. With an average elevation of 3.4 feet, the primary issues the study will address are storm damages primarily due to coastal flooding from the oceanside and back bay areas because of hurricanes and storms, which includes storm surges, tides, and waves combined with the effects of the sea level rise, storm damages due to erosion and wave attacks along the ocean shoreline, and compounding flooding contributions from rainfall and stormwater movement.

2. FUNDING

Estimated Total Cost $3,000,000 
Estimated Federal Cost   $1,500,000
Allocation thru FY22  $0
Allocation for FY23 $500,000
President’s Budget FY24 $600,000

 

3. SPONSOR

Miami-Dade County
Department of Regulatory and Economic Resources (RER)
Division of Environmental Resources Management, Water Management;
701 Northwest 1st Court, 5th Floor 
Miami, Florida 33136

 

4. STATUS
The Key Biscayne Segment was initially proposed to be included in the Miami-Dade County Coastal Storm Risk Management Project Main Segment’s feasibility study completed in September 2022. Following initial reviews of the Key Biscayne Segment’s exception request package, the U.S. Army Corps of Engineers (USACE) decided that the Key Biscayne Segment would not be included in the Main Segment’s feasibility study and was proposed to be studied under a separate new start feasibility study. The project’s study authority is contained in Statute 69-132, Chapter 140, Public Law 84-71, adopted on June 15, 1955. No appropriations are currently available for this study.

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