SAJ-2003-04189(SP-MJP)

TO WHOM IT MAY CONCERN: The Jacksonville District of the U.S. Army Corps of Engineers (Corps) has received an application for a Department of the Army permit pursuant to Section 404 of the Clean Water Act (33 U.S.C. §1344) and Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C. §403). The purpose of this public notice is to solicit comments from the public regarding the work described below:

 

If you are interested in receiving additional project drawings associated with this public notice, please send an e-mail to the project manager by electronic mail at Madison.J.Pollard@usace.army.mil.

 

APPLICANT: Lourdes Gomez

          Miami-Dade County

          111 NW 1st Street

          Miami, FL 33128

 

AGENT:        Sara Thanner

                     Miami-Dade Co. Dept. of Regulatory and Economic Resources

                     701 NW 1st Court

                    Miami, FL 33136

 

WATERWAY AND LOCATION:  The project would affect waters of the United States and navigable waters of the United States associated with the Atlantic Ocean.  is located approximately 3.2 nautical miles due east from Key Biscayne, approximately 2.7 nautical miles at a heading of 121° from Marker R”2” on the ocean side of Bear Cut, and 4.1 nautical miles at 61° from the Cape Florida lighthouse on Key Biscayne. The full site is approximately 3,030 yards (north-south) and 2,424 yards (east-west) with a depth range of 35 to 350 ft and vertical clearance between -25 to -65 ft. Miami-Dade County is seeking reauthorization of the western section of this site which is approximately 3,030 yards (north-south) and 543 yards (east-west) with a depth range of 35 to 70 ft and vertical clearance of -25 ft in Miami-Dade County, Florida. Central coordinates: 25.701027, -80.089498.

 

Latitude (N) and Longitude (W) corner points for the boundaries of western portion of the KB SMZ Artificial Reef Site in decimal minutes (DM) and decimal degrees (DD) are provided in the table below.

 

 

 

EXISTING CONDITIONS: This artificial reef site is located approximately 3.2 nm due east from Key Biscayne, approximately 2.7 nm at a heading of 121° from Marker R”2” on the ocean side of Bear Cut, and 4.1 nautical miles at 61° from the Cape Florida lighthouse on Key Biscayne.  In the western section of the KB SMZ, approximately 50,000 cy of tugs, steel vessels, barges, concrete, prefabricated concrete and limerock modules and limerock boulders have been deployed covering approximately 4 acres to date. Future artificial reef construction will be similar types of material, and, over the course of a 10-year permit, approximately another 15,000 cy of new artificial reef material may be deployed covering up to 2 acres depending on relief.

 

The total footprint of the current KB SMZ is 1,491 acres while the western section being considered for reauthorization is only 336 acres. Since 1974, artificial reefs have only been placed on approximately 4 acres of the western section.  

 

A total of 18 species of scleractinians were either observed within survey transects or photographed at the KB SMZ in 2024, all had been recorded as present in previous surveys. Agaricia lamarcki, Colpophyllia natans, Dichocoenia stokesii, Solenastrea bournoni, and Pseudodiploria clivosa were observed in prior annual surveys of the KB SMZ, but not photographed or recorded in 2024. Species richness within survey transects decreased at three reefs and remained unchanged at three reefs since 2023, while increasing at four since the 2019 baseline; however, the apparent loss or gain of species from year to year likely reflects the haphazardly placed transects and limited ability of the rapid survey methodology to detect rare species and/or small colonies rather than actual changes in diversity. A total of eight octocoral genera were observed within survey transects at KB SMZ in 2024.

 

A single Spiny Lobster (P. argus) was observed at KB SMZ in 2024, at KBC-D. In each of the previous annual surveys, between two and four lobsters were recorded at KB SMZ, occurring on different reefs throughout the site each year.

 

The most recent federal permitting history includes a Standard Permit issued on July 30, 2015, for the proposed activities that includes construction for ten (10) years within the previously authorized 1,491 acres of Dumfoundling Bay Artificial Reef site; specifically, to strategically deploy and/or anchor approved artificial reef material (as acquired) into the existing artificial reef site.  

 

         

PROJECT PURPOSE:

Basic:  The basic project purpose is the nourishment/renourishment of an existing artificial reef for marine habitat enhancement.

Overall:  The overall project purpose is the nourishment/renourishment of an existing artificial reef for marine habitat enhancement, offshore mainland Miami-Dade County, Florida through artificial reef habitat placement on barren sandy substrate.

 

PROPOSED WORK:  The applicant seeks reauthorization to create artificial reef by deploying approximately 1,500 cubic yards of calcium-carbonate based, such as limestone boulders, prefabricated artificial reef modules, or large concrete-based materials (i.e., connection/junction boxes, large sections of bridge decking or other construction demolition) material annually or 15,000 cubic yards (2 acres /87,120 square feet) over the life of a 10-year permit. 

 

In addition to the placement of new artificial reef material, small metal plaques and molded concrete in various shapes and sizes that contain cremated human remains will be routinely added and secured via concrete or epoxy to existing Neptune Memorial Reef structures in areas without benthic growth. These plaques and molds will not increase the footprint of the artificial reef or substantially add to the volume of material.

 

All material will be deployed on barren sandy bottom with a 200-foot buffer from existing resources.  

 

AVOIDANCE AND MINIMIZATION: The applicant has provided the following information in support of efforts to avoid and/or minimize impacts to the aquatic environment:

 

At KB SMZ, the primary type of material deployed will be calcium-carbonate based, such as limestone boulders, prefabricated artificial reef modules, or large concrete-based materials (i.e., connection/junction boxes, large sections of bridge decking or other construction demolition). Vessels or barges may be deployed at this site but will be processed through a modification at a later date.

 

All artificial reef material deployments will be prepared as necessary to meet permit conditions and follow guidelines set forth in the following best management practice (BMP) documents:

Guidelines for Marine Artificial Reef Materials 2nd Edition (Association of the Gulf and Atlantic States Marine Fisheries Commissions 2004)

National Guidance: Best Management Practices for Preparing Vessels Intended to Create Artificial Reefs (US Environmental Protection Agency 2006)

National Artificial Reef Plan: Guidelines for Siting, Construction, Development, and Assessment of Artificial Reefs (NOAA 2007)

Guidelines and Management Practices for Artificial Reef Siting, Usage, Construction, and Anchoring in Southeast Florida (Southeast Florida Coral Reef Initiative, Lindberg and Seaman (editors), 2010)

 

All artificial reef deployments will be evaluated based on specific characteristics of a 25-year storm event to provide the necessary safeguard against material movement, consistent with the previous permit. Vessels/Barges will be further evaluated against a 50-year storm event. The Lin Stability model distributed by the Florida Fish and Wildlife Conservation Commission (FWCC) and the Miami-Dade stability model developed by Coastal Systems International will be utilized to assess the stability of each individual artificial reef prior to deployment. If a proposed artificial reef is not indicated to be stable at the site depth, the material will not be deployed.

 

Artificial reef deployments will avoid areas with known benthic resources based on Laser Airborne Depth Sounder (LADS) data from 2003, NOAA side scan data from 2009, benthic habitat maps (Walker 20091), and the assessment by DERM Biologists in the fall of 2024. All deployments will maintain a 200 ft buffer to known natural resources consistent with previous permit conditions.

 

A biological survey will also be conducted immediately prior to the deployment of any materials. Biological surveys will be conducted by DERM marine biologists using SCUBA. Each survey will initially consist of the placement of a temporary marker buoy at the proposed target reef location. Divers will then conduct a survey for any resources within a 200 ft minimum radius of the marker buoy. If benthic resources such as hardbottom or seagrass are found during this survey, the target position will be altered to provide appropriate buffer distance from resources. If adequate buffer distances are not available, the initial target site will be abandoned, and another location evaluated.

 

Reef materials will be transported to the site via tugboat and/or barge. On site, the vessel transporting the materials will be positioned directly adjacent to the previously established buoy, and held in position either by anchoring/spudding, with dynamic positioning using tugboat(s), or combination of tugs and anchors. Once a stable configuration at the target buoy is achieved the material will be deployed. Concrete and boulder materials will be offloaded using heavy equipment such as cranes or loaders.

 

In water surveys will also be conducted immediately post deployment to verify that material was deployed where intended and does not exceed navigational clearance requirements. Adjustments to location or material height off the substrate are made if necessary. The dimensions and relief of the new artificial reef area are measured and, if the size of the reef allows, the perimeter is traced by divers towing a surface GPS unit. This information will be incorporated into a material placement report and submitted to the Florida Fish and Wildlife Conservation Commission.

 

COMPENSATORY MITIGATION: The applicant has provided the following explanation why compensatory mitigation should not be required:

 

A compensatory mitigation plan has not been submitted as unavoidable functional loss to the aquatic environment is not being proposed. All artificial reef deployments will occur on barren, sandy substrate a minimum of 200 feet from benthic resources based on the Benthic Resource Report and in accordance with the avoidance and minimization methodology plan. Should any unplanned impacts occur, Miami-Dade County will contact the Army Corps Engineers and other environmental permitting agencies to develop a specific mitigation plan.

 

CULTURAL RESOURCES:

The Corps is evaluating the undertaking for effects to historic properties as required under Section 106 of the National Historic Preservation Act. This public notice serves to inform the public of the proposed undertaking and invites comments including those from local, State, and Federal government Agencies with respect to historic resources. Our final determination relative to historic resource impacts may be subject to additional coordination with the State Historic Preservation Officer, federally recognized tribes and other interested parties.

 

ENDANGERED SPECIES: The Corps has performed an initial review of the application, the National Marine Fisheries Service (NMFS) Section 7 Mapper, and the NMFS Critical Habitat Mapper to determine if any threatened, endangered, proposed, or candidate species, as well as the proposed and final designated critical habitat may occur in the vicinity of the proposed project. Based on this initial review, the Corps has made a preliminary determination that the proposed project may affect species and critical habitat listed below. No other ESA-listed species or critical habitat will be affected by the proposed action.

 

Table 1: ESA-listed species and/or critical habitat potentially present in the action area.

Species Common Name and/or Critical Habitat Name	Scientific Name	Federal Status
Queen Conch	Alger gigas	Threatened
Boulder Star Coral and its critical habitat	Orbicella franksi	Threatened
Elkhorn Coral and its critical habitat	Acropora palmata	Threatened
Mountainous Star Coral and its critical habitat	Orbicella faveolata	Threatened
Pillar Coral and its critical habitat	Dendrogyra cylindrus	Threatened (Proposed Endangered)
Staghorn Coral and its critical habitat	Acropora cervicornis	Threatened
Rough Cactus Coral and its critical habitat	Mycetophyllia ferox	Threatened
Loggerhead Sea Turtle and its critical habitat	Caretta caretta	Threatened
Green Sea Turtle and its critical habitat	Chelonia mydas	Threatened
Leatherback Sea Turtle	Dermochelys mydas	Endangered
Hawksbill Sea Turtle	Eretmochelys imbricata	Endangered
Kemp’s Ridley Sea Turtle	Lepidochelys kempii	Endangered
Giant Manta Ray	Mobula birostris	Threatened
Smalltooth Sawfish	Pristis pectinata	Endangered
Nassau Grouper	Epinephelus striatus	Threatened

 

Pursuant to Section 7 ESA, any required consultation with the Service(s) will be conducted in accordance with 50 CFR part 402.

 

This notice serves as request to the U.S. Fish and Wildlife Service and National Marine Fisheries Service for any additional information on whether any listed or proposed to be listed endangered or threatened species or critical habitat may be present in the area which would be affected by the proposed activity.

 

ESSENTIAL FISH HABITAT: Pursuant to the Magnuson-Stevens Fishery Conservation and Management Act 1996, the Corps reviewed the project area, examined information provided by the applicant, and consulted available species information.

 

This notice initiates the Essential Fish Habitat (EFH) consultation requirements of the Magnuson-Stevens Fishery Conservation and Management Act. Our initial determination is that the proposed action may adversely affect EFH and/or fisheries managed by Fishery Management Councils and the National Marine Fisheries Service (NMFS). Implementation of the proposed project would directly impact approximately 2 acres of barren sandy habitat. The effects of the project are determined to be minimal and permanent. These habitat(s) are utilized by the following species and their various life stages:

Species	Life Stage
Bluefish
Spiny Lobster	ALL
Bluefish
Corals	ALL
Nurse Shark
Bluefish	Juvenile
Great Hammerhead Shark	ALL
Tiger Shark
Snapper Grouper	ALL
Whale Shark	ALL
Skipjack Tuna
Bluefish
Scalloped Hammerhead Shark
Bull Shark
Shrimp	ALL
Sandbar Shark
Blacktip Shark (Atlantic Stock)
Sailfish
Caribbean Reef Shark	ALL
Coral Hard Bottom Habitat	ALL
Tiger Shark	Neonate
Sailfish	Juvenile
Dolphin Wahoo	ALL
Skipjack Tuna	Juvenile

 

Our final determination relative to project impacts and the need for mitigation measures is subject to review by and coordination with the National Marine Fisheries Service.

 

NAVIGATION: The proposed structure or activity is not located in the vicinity of a federal navigation channel.

 

SECTION 408: The applicant will not require permission under Section 14 of the Rivers and Harbors Act of 1899 (33 USC 408) because the activity, in whole or in part,   would not alter, occupy, or use a Corps Civil Works project.

 

WATER QUALITY CERTIFICATION: Water Quality Certification is required from the Florida Department of Environmental Protection (FDEP). The project has a permit (13-0180248-005) that expires August 23, 2026.

 

COASTAL ZONE MANAGEMENT CONSISTENCY: Coastal Zone Consistency Concurrence is required from FDEP. In Florida, the State approval constitutes compliance with the approved Coastal Zone Management Plan.

 

NOTE:  This public notice is being issued based on information furnished by the applicant. This information has not been verified or evaluated to ensure compliance with laws and regulation governing the regulatory program. The geographic extent of aquatic resources within the proposed project area that either are, or are presumed to be, within the Corps jurisdiction has not been verified by Corps personnel.

 

EVALUATION: The decision whether to issue a permit will be based on an evaluation of the probable impact including cumulative impacts of the proposed activity on the public interest. That decision will reflect the national concern for both protection and utilization of important resources. The benefits, which reasonably may be expected to accrue from the proposal, must be balanced against its reasonably foreseeable detriments. All factors which may be relevant to the proposal will be considered including cumulative impacts thereof; among these are conservation, economics, esthetics, general environmental concerns, wetlands, historical properties, fish and wildlife values, flood hazards, floodplain values, land use, navigation, shoreline erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food, and fiber production, mineral needs, considerations of property ownership, and in general, the needs and welfare of the people. Evaluation of the impact of the activity on the public interest will also include application of the guidelines promulgated by the Administrator, EPA, under authority of Section 404(b) of the Clean Water Act. A permit will be granted unless its issuance is found to be contrary to the public interest.

 

COMMENTS: The Corps is soliciting comments from the public; Federal, State, and local agencies and officials; Indian Tribes; and other Interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps to determine whether to issue, modify, condition, or deny a permit for this proposal. To make this determination, comments are used to assess impacts to endangered species, historic properties, water quality, general environmental effects, and the other public interest factors listed above. Comments are used in the preparation of an Environmental Assessment (EA) and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act (NEPA). Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity.

 

The Jacksonville District will receive written comments on the proposed work, as outlined above, until October 27, 2025. Comments should be submitted electronically via the Regulatory Request System (RRS) at https://rrs.usace.army.mil/rrs or to Madison Pollard at Madison.J.Pollard@usace.army.mil. Alternatively, you may submit comments in writing to the Commander, U.S. Army Corps of Engineers, Jacksonville District, Attention:  Madison Pollard, 9900 SW 107th Ave #203 Miami, FL 33176.  Please refer to the permit application number in your comments.

 

Any person may request, in writing, within the comment period specified in this notice, that a public hearing be held to consider the application. Requests for public hearings shall state, with particularity, the reasons for holding a public hearing. Requests for a public hearing will be granted, unless the District Engineer determines that the issues raised are insubstantial or there is otherwise no valid interest to be served by a hearing.

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