Miami-Dade County CSRM, FL (I)

May 2024


Miami-Dade County CSRM, FL
Investigations (I)
Congressional Districts:  24, 27, 28


The purpose of this study was to address the protection of critical infrastructure, reduction of structural damages, and evacuation route protection along the Dade County Beach Erosion Control and Hurricane Protection (BEC&HP) project 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 study area consisted of the coastline between Florida Department of Environmental Protection R-monuments R-27 and R-74 and included the municipalities of Bal Harbor, Surfside, and the City of Miami Beach. 

During the study, the Key Biscayne Segment (R-101 to R-108) was considered to be included; however, upon further investigation, the U.S. Army Corps of Engineers decided the Key Biscayne Segment would be best evaluated under its own new start feasibility study.    


Estimated Total Cost $3,000,000
Estimated Federal Cost $2,975,000


a. P.L. 115-123: Bi-Partisan Budget Act of 2018, Supplemental:

Current Working Estimate $3,000,000
Allocation thru FY23 $2,975,000
Allocation for FY24 $0



Miami-Dade County
Department of Regulatory and Economic Resources (RER)
Division of Environmental Resources Management, Water Management
701 Northwest 1st Court, 4th Floor
Miami, Florida 33136


This study started its official three-year timeline in October 2018 with conclusion of a Chief’s Report scheduled for October 2021; however, inclusion of the Key Biscayne segment along with additional income loss and sediment analysis required additional time and funding. A 3x3x3 rule exception was approved by the ASA (CW) in November 2020, giving the study an additional year and pushing the Chief’s Report back until October 2022. The Tentatively Selected Plan was approved on September 14, 2021. The draft integrated report was released for public and agency comments on November 12, 2021. The Agency Decision Milestone, which included selecting Course of Action (COA) 4, was approved on February 17, 2022. COA 4 consisted of completing an interim feasibility report for only the Main Segment by May 2022 and associated Chief’s Report by October 2022, preparing a 2nd 3x3x3 rule exception request to further study the Key Biscayne Segment, and completing the additional study of the Key Biscayne Segment following ASA (CW) approval of the 2nd exception.  Following initial reviews of the Key Biscayne Segment’s exception request package, the U.S. Army Corps of Engineers (Corps) 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 Corps’ Jacksonville District completed a Final Integrated Feasibility Report and Environmental Assessment for the Miami-Dade County Coastal Storm Risk Management project’s Main Segment in September 2022, and a Chief’s Report for the Main Segment was signed on September 26, 2022.  The Main Segment was authorized in the Water Resources Development Act of 2022, thereby extending Federal participation by an additional 50 years after 2025.    


Dade County