ENVIRONMENTAL RESTORATION & MITIGATION PROJECTS

 

  • Port of Miami Cruise Terminal A Mitigation:Callaway Marine Technologies was contracted to construct an artificial reef in offshore Miami Dade County as mitigation for construction activities performed at the Port of Miami Berth 7.  In addition, CMT performed coral relocation and coral monitoring activities.  The project included a two year coral monitoring program.


  • M/V Clipper Lasco and M/V Spar Orion Grounding Sites Stabilization and Rehabilitation: This project was the first large-scale,  FDEP led coral reef restoration project in the Southeast Florida Reef Tract.  CMT performed all restoration activities associated with the project including: 1) diver directed placement of limestone boulders to restore the damaged reef's structural complexity (rugosity and relief); 2) removal and stabilization of loose rubble in the damaged sites; 3) placement of concrete to stabilize limestone boulders and rubble. Per the director of FDEP's Florida Coastal Office, " This was an extremely successful collaboration with many dedicated partners, whose expertise and skills were invaluable."​


  • Miami Harbor Deepening Project (Phase III) Mitigative Reef Construction: The Miami Harbor Dredging Project (Phase III) is the U.S Army Corps of Engineers’ largest dredging project to date. Callaway Marine Technologies successfully completed construction of 11.6 acres of artificial reef as mitigation for anticipated impacts to existing hardbottom communities resulting from dredging activities.


  • Walton Smith Coral Reef Restoration Project: Callaway Marine Technologies was contracted to conduct restoration activities at the grounding site of the RV Walton Smith research vessel. Restoration activities included reattachment of displaced substrate to restore reef complexity, reattachment of living biota (i.e. scleractinian corals, octocorals, sponges), and relocation and stabilization of rubble fields. The purpose of the project was to restore the injured natural coral reef resources and reestablish the site for lost recreational services.

 

  • Allie B/Igloo Moon Coral Reef Restoration Project: The purpose of the project was to conduct restoration activities in order to stabilize and restore the injured natural resources and compensate the public for lost recreational services from the time of injury until full recovery. Restoration activities performed by CMT included reattachment of large segments of displaced substrate to reestablish topography, reattachment of living biota, relocation and stabilization of rubble and repair of fractures in the reef substrate caused by the ship impact.

 

  • Juno Beach Nourishment Project Turbidity Monitoring: Callaway Marine Technologies was contracted to provide 24 hour turbidity monitoring services. Data collected was used to identify and analyze potential water quality impacts resulting from sand dredging and placement activities.

 

  • Natalia III Coral Reef Restoration Project: The purpose of the project was to conduct restoration activities in order to stabilize and restore the injured natural resources and compensate the public for lost recreational services from the time of injury until full recovery. Restoration activities performed by CMT included conducting coral relocation and reattachment. Additional responsibilities included removing and stabilizing rubble through various techniques including, stabilization using concrete and biological adhesives (i.e. sponges).

 

  • Breakers Coral Reef Restoration Project: CMT collaborated with the Florida Department of Environmental Protection (FDEP), Florida Fish and Wildlife Conservation Commission (FWC), Palm Beach County Environmental Resources Management (ERM) and others to perform restoration work on the Breakers Reef, which was damaged in November 2008.

 

  • Cable Bahamas Coral Reef Assessment Surveys: CMT personnel served as consultants onboard the ship during cable laying operations, providing local knowledge of the second and third reef systems offshore of Palm Beach County, Florida. After cable installation, CMT performed an assessment survey of the section of reef that had been crossed by the fiber optic cable. Video and still photo documentation was collected to comply with Department of Environmental Protection (DEP) requirements. Corals that were displaced during the cable laying operation were transplanted to suitable nearby areas. CMT also performed the long term (5 year) monitoring program of the impacted areas, the transplanted areas, and the artificial reef mitigation site.

 

  • Town of Longboat Key Seagrass Restoration Mitigation Project: This project involved transplanting 30,269 square feet (1.16) acres of seagrass as mitigation to offset impacts of a canal dredging project. Responsibilities included verification and selection of donor and recipient sites, DGPS survey of prop scar portions of project, and development and implementation of seagrass transplanting methods. Seagrass units were transplanted using the plug method. Plugs were taken and transported in seawater to the recipient areas where they were replanted. Overall survivability for the project was 78% after 3 years, exceeding permit requirements, and 4 of the 8 sites had 100% survivability and expansion of the original seagrass areas. An analysis of actual seagrass coverage in the transplanted areas, as opposed to survivability of individual plants, showed that after 3 years the seagrass coverage in the transplanted areas was 21 times larger than the originally planted area. This is one of the most successful projects of its kind.

 

  • Palm Beach County 2002 Artificial Reef Construction: CMT served as a subcontractor to Moby Marine on this project, which consisted of placing approximately 10,000 tons of 3 to 5 foot diameter limestone boulders in 12 to 18 feet of water offshore of Palm Beach County, Florida. The boulders were placed in several different patterns and Palm Beach County Environmental Resource Management (ERM) will study the different areas to determine which orientation to currents and prevailing waves promotes greater habitat enhancement. Rock filled Tensar Geogrid Mattresses and Armorflex concrete articulating mats were used as a base for the boulders. Surface supplied divers guided crane placement of the geogrid mattresses and concrete mats. Boulders were then place onto the mattresses by a crane.

 

  • TYCO Submarine Systems Limited (TSSL) Artificial Reef Construction: To allow installation of several fiber optic cables offshore of Boca Raton, Florida, the Florida Department of Environmental Protection (FDEP) required that artificial reefs be constructed as mitigation to offset potential impacts to the reef communities in the area. CMT constructed three distinct limestone boulder areas that would serve as a pathway for divers and link to popular shipwrecks.  Boulder placement was observed real time using a Remotely Operated Vehicle (ROV) to allow precise placement while insuring protection of adjacent environmental resources. . In critical areas the boulder placement was directed by surface supplied diver.

 

  • Cable Bahamas Artificial Reef Construction: Approximately 150 tons of boulders were used to construct an artificial reef offshore of Palm Beach County as mitigation for the installation of fiber optic cables. Boulders were placed adjacent to the TSSL artificial reef as part of the corridor between two popular shipwreck dive sites. Boulder placement was observed real time using a Remotely Operated Vehicle (ROV) to allow precise placement while insuring protection of adjacent environmental resources. In critical areas the boulder placement was directed by surface supplied diver.

 

  • Alcatel Artificial Reef Construction: The reef was constructed as mitigation to offset potential impacts caused by the installation of fiber optic cables. Boulder placement was observed real time using a Remotely Operated Vehicle (ROV) to allow precise placement while insuring protection of adjacent environmental resources. . In critical areas the boulder placement was directed by surface supplied diver. The artificial reef was constructed adjacent to the TSSL and Cable Bahamas artificial reef sites forming the last section in the corridor connecting two wreck dive sites. The artificial reef provides a visual pathway for divers to follow when swimming from one wreck to the other. The proximity of the wrecks, previously placed artificial reefs, and surrounding hard bottom communities required careful planning and execution to complete this unique dive site.

 

  • El Morro Breakwater Restoration: This project involved the placement of approximately 50 armor stone weighing up to 70,000 pounds each to repair sections of the breakwater that were damaged by ship impact. The project presented challenging logistics problems that included mooring and positioning of the tug and barge next to the breakwater in a high energy open ocean environment.

 

  • St. Paul’s School Shoreline Restoration: This project involved restoration of a badly eroded shoreline in an environmentally sensitive area. It required close coordination with state and local environmental agencies to secure permits and develop a work plan and environmental protection plan. After shaping and stabilizing the shoreline with Armorflex mats, the area was filled with topsoil and the shoreline was planted with Spartina grass and mangroves. Upland areas were planted with various native species. This project was completed on schedule with all environmental protection measures in place during a period of record rainfall. 

Callaway Marine Technologies, Inc.