Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project

The Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project is formulating plans to restore parts of the south Florida ecosystem in freshwater wetlands of the Southern Glades and Model Lands, the coastal wetlands and subtidal areas, including mangrove and seagrass areas, of Biscayne Bay, Biscayne National Park, Manatee Bay, Card Sound and Barnes Sound. These areas have been affected by over-drainage and by damaging freshwater releases from canals, such as the C-111 Canal.

BBSEER Map

Project Purpose and Need:

Currently, multiple canals designed to provide flood risk management and protect water supplies transect the study area. The drainage system currently in place has transformed Biscayne Bay’s natural estuarine conditions driven by diffuse freshwater flows to a declining ecosystem driven by controlled freshwater pulses that have unnatural input locations to the Bay, and that provide water at unnatural times, in unnatural volumes, and with unnatural distributions. Historically, Biscayne Bay received fresh water from overland flow passing through the coastal ridge and wetlands, and from extensive groundwater seepage. These natural freshwater inputs produced a distinctive salinity gradient that supported the diverse habitats of the Bay. The drainage canals disrupted interconnected physical and chemical natural processes such as hydrology, salinity patterns, and nutrient inputs. The existing canals impact freshwater flows to the Biscayne Bay estuary by lowering the region’s water table and reducing water storage in contributing basins; decreasing groundwater inflow to Biscayne Bay; and eliminating or altering natural tributaries. Drainage has permitted agricultural and suburban development in areas that were once vital wetlands and increased the flow of pollutants/nutrients to Biscayne Bay. Development of watershed lands and the commensurate control of water levels have contributed to the altered timing and duration of freshwater flows to Biscayne Bay.

Project Objectives

1. Progress towards restoration of a 500-m mesohaline strip year-round along the Biscayne Bay, Biscayne National Park, Card Sound and Manatee Bay coasts, and to reduce unnatural pulse releases.

2. Progress towards restoration of depth and duration of freshwater, and structure and function with improved native plant and animal abundances and diversity, in the eastern portions of the Model Lands, Southern Glades, Panhandle of Everglades National Park, and coastal wetlands not already included in the Biscayne Bay Coastal Wetlands Phase 1 project and moderate the encroachment of saline conditions into these areas anticipated with sea level rise.

3. Progress towards restoration of ecological and hydrological connectivity in the landside areas of the Model Lands, Southern Glades, eastern Panhandle of ENP, and Biscayne Bay coastal wetlands: Increase spatial extent of these restored natural areas and increase freshwater sheet flow and related patterns of hydroperiod between Model Lands, Southern Glades, ENP and Biscayne Bay coastal wetlands.

4. Increase ecological resiliency of coastal vegetation habitats in southeastern Miami-Dade County, including restoration of soils that help to resist sea level rise encroachment and effects.

Upcoming Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project Delivery Team (PDT) Meetings

The Project Delivery Team (PDT) members include only the federal officials and elected officers of state, local or tribal governments or their designated employees with authority to act on their behalf acting in their official capacities.

Members of the public are welcome to attend the government agency PDT meeting and provide comment during designated periods.


Upcoming BBSEER Project Delivery Team (PDT) Meeting Dates: April 8, 2025, from 9:00 a.m. to 12:00 p.m.

BBSEER Virtual Project Delivery Team Meeting April 8, 2025

The U.S. Army Corps of Engineers, (USACE), Jacksonville District invites Project Delivery Team (PDT) members, stakeholders, partners, and members of the public to attend an in-person and virtual PDT Meeting for the Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project study on Tuesday, April 8, 2025, from 9 a.m. to 12 p.m.

“The BBSEER team is excited to reengage with our public Project Delivery Team. The team will present the results of evaluations for the BBSEER Final Array of Alternatives and respond to feedback on improvements to the alternatives to provide the most benefits in the BBSEER study area. We thank you for your continued engagement, comments on the performance of the Final Array of Alternatives, and your support throughout this iterative process as the team makes progress towards the Tentatively Selected Plan milestone,” said Jennifer John, BBSEER Senior Project Manager.

BBSEER alternative plans are intended to improve freshwater flows to freshwater Everglades wetlands of the Southern Glades, Model Lands, coastal wetlands and estuarine areas of Biscayne Bay and the Southeastern Everglades including Card Sound, Barnes Sound, and Manatee Bay.

Please join the BBSEER Team for an in-person and virtual Project Delivery Team (PDT) Meeting on Tuesday, April 8, 2025, from 9 a.m. to 12 p.m. at the Town of Cutler Bay Council Chambers, 10720 Caribbean Blvd Ste 105, Cutler Bay, FL 33189.

 

BBSEER PDT Meeting:

Tuesday, April 8, 2025, from 9 a.m. to 12 p.m.

Microsoft Teams Login: Join the meeting now

Meeting ID: 993 271 193 650

Passcode: DM7YG6uG 

Dial in by phone: 1-601-262-2433

Phone conference ID: 737 140 458#

 

BBSEER Meeting Objectives:

•           Reengage with the public Project Delivery Team after a 6-month technical pause.

•           Present evaluations of the Final Array of Alternatives for PDT comment and discussion.

•           Identify changes that may provide greater ecological performance of individual plans.

•           Receive PDT and Public Comments

•           Next Steps and Closing Comments

 

Tentative Agenda:

•           9:00 – 9:15 AM:         Welcome, Meeting Objectives, and Study Objectives

•           9:15 – 10:15 AM:       Final Array evaluations and discussion 

•           10:15 – 11:00 AM:     Tentatively Selected Plan recommendation and discussion

•           11:00 – 11:30 AM:     TSP Optimization and discussion

•           11:30 – 11:45 AM:     Public Comment

•           11:45 – 12:00 PM:     Next Steps and Closing Comments

 

Virtual Meeting Instructions:

  • Unless you are calling in only and will not be viewing the virtual meeting, please sign in on the virtual meeting website first and, when prompted, select the audio connection “Call Me” option. This will allow the meeting to call you directly and may operate better than if you opt to dial in.
  • At the beginning of the meeting, please sign in via chat and include your first and last name, agency or group affiliation if applicable, and email. PDT members should also include the PDT designation.
  • Please mute your phone unless you are speaking, and do not put the call on hold.
  • PDT members should provide their full name and the agency or group that they represent when speaking.
  • Members of the public will have an opportunity to provide comments during the specified public comment periods.

For additional information on the BBSEER Project: https://www.saj.usace.army.mil/BBSEER/

If you have any questions, please send an email to BBSEERComments@usace.army.mil.

 

USACE is in the planning phase for the Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project, an important part of the Comprehensive Everglades Restoration Plan (CERP). The South Florida Water Management District is our partner as the non-federal sponsor for this project.

The BBSEER Study is focused on formulating plans to restore parts of the south Florida ecosystem in freshwater wetlands of the Southern Glades and Model Lands, the coastal wetlands and subtidal areas, including mangrove and seagrass areas, of Biscayne Bay, Biscayne National Park, Manatee Bay, Card Sound and Barnes Sound. These areas have been affected by over-drainage and by large-volume freshwater releases from canals, such as the C-111 Canal. As part of the study, the USACE will publish information in a Draft Integrated Project Implementation Report (PIR) and National Environmental Policy Act (NEPA) document.

To meet BBSEER objectives, this study will identify, consider, and assess a comprehensive list of features and operational changes. The features and operational changes may include, but are not limited to, canal plugs and backfilling, structure removal, conveyance features, stormwater treatment areas, reservoir and storage areas, seepage capture, treated wastewater, new levees or berms and controlled burns. During the study, additional measures may be added, and project locations and dimensions will be specified in the draft integrated PIR/NEPA document.

Like other CERP studies where multiple components are combined into one planning effort and Project Implementation Report, the BBSEER Study will also include more than one CERP component. The BBSEER Study will begin with six CERP components identified in the 1999 study known as the “Restudy” or “Yellow Book.” These components include:

•           Biscayne Bay Coastal Wetlands

•           Biscayne Bay Coastal Canals

•           C-111N Canal Project

•           South Miami Dade County Reuse

•           West Miami Dade Reuse

•           North Lake Belt

 

View the Biscayne Bay and Southeastern Everglades Ecosystem Restoration Project (BBSEER) Fact Sheet at https://usace.contentdm.oclc.org/utils/getfile/collection/p16021coll11/id/5451.

The Everglades ecosystem encompasses a system of diverse wetland landscapes that are hydrologically and ecologically connected across more than 200 miles from north to south, and across 18,000 square miles of southern Florida. In 2000, the U.S. Congress authorized the federal government, in partnership with the state of Florida, to embark upon a multi-decade, multi-billion-dollar Comprehensive Everglades Restoration Plan (CERP) to further protect and restore the remaining Everglades ecosystem while providing for other water-related needs of the region.

Biscayne Bay and Southeastern Everglades Restoration (BBSEER)

The Biscayne Bay Southeastern Everglades Restoration (BBSEER) Project, a part of the Comprehensive Everglades Restoration Plan (CERP), that seeks to protect and restore the remaining Everglades ecosystem while providing for other water-related needs in the region, is being undertaken in partnership with the South Florida Water Management District.   

The construction of roads, railways and ditches, along with the connection of the South Dade Conveyance System to the sea through the C-111 canal, dramatically altered the distribution of freshwater across the landscape of Southeastern Florida. These man-made barriers and drainage features starved some areas of freshwater and increased the supply to others converting what was a healthy productive aquatic ecosystem into a distressed environment. 

The purpose of the BBSEER project will be to improve the quantity, quality, timing and distribution of freshwater to estuarine and nearshore subtidal areas, including mangrove and seagrass areas, of Biscayne Bay, Biscayne National Park, Card Sound, Barnes Sound and Manatee Bay.  This project will also seek to improve hydroperiods and freshwater marsh habitat in the Model Lands and Southern Glades, to re-establish hydrological and ecological connectivity between these areas and to improve the resiliency of these important marsh and coastal habitats to future sea level change.

Implementation of the project will provide multiple benefits to the aquatic environment including improved habitat for juvenile and prey-fish species, improved conditions for recreationally and commercially important aquatic species and fish and improved habitat for wading birds that were once common in this area prior to extensive drainage, all while maintaining the current level of flood protection.

BBSEER Updates

Sign up for BBSEER email updates

Email jazika.levario@usace.army.mil

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PDT Meeting Documents

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