South Ponte Vedra Beach Dune Restoration Dredging Project – 2022

GrimDeeper was contracted to perform third-party turbidity monitoring on this South Ponte Vedra Beach Dune Restoration dredging project in St. Johns County, Florida. St. Johns County is the contracting officer, in partnership with The Florida Department of Environmental Protection (FDEP), Federal Emergency Management Agency (FEMA), U.S. Army Corps of Engineers (USACE), Bureau of Ocean Energy Management (BOEM), and homeowners. Weeks Marine, Inc is the prime dredging contractor.

The South Ponte Vedra Beach Dune Restoration dredging project involves the hydraulic dredging, using the trailing suction hopper dredges “R.N. Weeks” and “B.E. Lindholm”, of approximately 775,000 cubic yards of material from the offshore borrow area and then pumped to the beach using three (3) different submerged pipelines. Approximately 5.5 miles of the beach, beginning at approximately 1.3 miles North of Guana River Road moving South to Serenata Beach (in front of Serenata Ocean Villas), will be restored, including dune restoration and plantings.

St. Lucie Inlet Maintenance Dredging Project

GrimDeeper was contracted to perform third-party turbidity monitoring on this St. Lucie Inlet (“SLI”) maintenance dredging project. USACE is the contracting officer, in partnership with The Martin County Board of County Commissioners, and The Florida Department of Environmental Protection (FDEP). Weeks Marine, Inc is the prime dredging contractor.

The St. Lucie Inlet (SLI) Maintenance Dredging Project involves the hydraulic dredging, using the cutter suction dredge “C.R. McCaskill”, of approximately 475,000 cubic yards of material from the SLI, entrance channel and impoundment basin into a floating and submerged pipeline for discharge in the St. Lucie Inlet Preserve State Park (“Hobe Sound beach”). Approximately 1.5 miles of the beach will be [re]nourished starting from the small jetty on the North side moving to the South.

Port Everglades Harbor Maintenance Dredging,
42-Foot Project

 
GrimDeeper was contracted to perform third-party turbidity monitoring on this Port Everglades Harbor Maintenance Dredging, 42-Foot Project in Broward County, Florida. USACE is the contracting officer, with the Florida Department of Environmental Protection (FDEP) providing environmental oversight. Weeks Marine, Inc (“WMI”) is the prime dredging contractor.

This project involves the mechanical dredging, using the clamshell dredge “W506” and the Trailing Suction Hopper Dredge (‘TSHD’) “R.N. WEEKS”, of approximately 292,000 cubic yards of material from the Port Everglades Harbor and Federal entrance channel. An estimated 135,000 cubic yards will be placed at the offshore Ocean Dredge Material Disposal Site (ODMDS) and the remaining material will be utilized to re-nourish approximately 0.8 miles of beach on the southern side of the Federal channel.

Prior to the beginning of this dredging project, GRIMDEEPER personnel were onsite in Port Everglades during September 15, 2020 – October 14, 2020 providing Captain / Vessel services working with scientific and biological dive teams to perform seagrass surveys of most of Port Everglades. The protection of seagrass in Port Everglades is paramount to environmental considerations regarding dredging.

Phase II of the project started on February 12, 2021. This phase of the project will utilize the TSHD “R.N. WEEKS” to dig material from the Federal entrance channel and then pump off the material into a beachfill discharge pipe located on the ICW.

Please click on any gallery picture below to see the expanded view.

Shore Protection Project – Midtown Segment
Beach Nourishment Project

GrimDeeper was contracted to perform third-party turbidity monitoring on this Shore Protection Project – Mid-Town Segment Beach Nourishment Project in Palm Beach County, Florida. USACE is the contracting officer, with the Florida Department of Environmental Protection (FDEP) providing environmental oversight. Weeks Marine, Inc (“WMI”) is the prime dredging contractor.

This project involved the hydraulic dredging, using the Trailing Suction Hopper Dredge(s) (‘TSHD’) “MAGDALEN”, “R.N. WEEKS” and “B.E. LINDHOLM”, of approximately 251,000 cubic yards of material from the borrow area (approximately 1.5 miles north of Lake Worth inlet) to re-nourish approximately 1.1 miles of beach on the northern side of The Breakers Hotel Resort and approximately 503,000 cubic yards of material from the borrow area to re-nourish approximately 1.8 miles of beach on the southern side of The Breakers Hotel Resort.

Two (2) sublines were utilized and all three (3) TSHDs were operational during some of the project duration. During the time 3 TSHDs were operational, GrimDeeper utilized 2 turbidity monitoring vessels and multiple personnel to successfully accomplish the turbidity monitoring field work and all the required reporting.

Please click on any gallery picture below to see the expanded view.

Shore Protection Project – North Boca Raton Segment Beach Renourishment

GrimDeeper was contracted to perform third-party turbidity monitoring on this Shore Protection Project – North Boca Raton Segment Beach Nourishment Project in Palm Beach County, Florida. USACE is the contracting officer, with the Florida Department of Environmental Protection (FDEP) providing environmental oversight. Weeks Marine, Inc (“WMI”) is the prime dredging contractor.

This project involves the hydraulic dredging, using the Trailing Suction Hopper Dredge (‘TSHD’) “MAGDALEN”, of approximately 600,000 cubic yards of material from the borrow area to re-nourish approximately 2.6 miles of North Boca Raton Beach. This project was completed on time.

Port Canaveral Marine Structures
Cruise Terminal #3 (CT3)
Improvement Construction Project

GrimDeeper was contracted to perform third-party turbidity monitoring on the Port Canaveral Marine Structures – Cruise Terminal #3 (CT3) Improvement Construction Project. The Canaveral Port Authority (“CPA”) is the customer, RUSH Marine, LLC is the prime construction firm and oversight is provided by the Florida Department of Environmental Protection (FDEP). Norfolk Dredging Company is the prime dredging contractor.

The CT3 is being constructed in conjunction with Carnival Cruise Lines and will accommodate the newest and largest ship in the Carnival fleet. The name will be “Mardi Gras”. The Mardi Gras is currently under construction at the Meyer Werft shipyard in Papenburg, Germany. Notably, the Mardi Gras is part of Carnival Corp’s “green cruising” design platform and will also be the first Liquefied Natural Gas (“LNG”) powered cruised ship to be based in the U.S.

LNG has been steadily growing as a leading source of energy worldwide since the first commercial liquefaction plant was delivered in 1964 in Arzew, Algeria. The 180,000 ton, 1440 lineal foot Mardi Gras is set to debut in 2020. The construction of the berth at CT3 consists of demolition of existing pier, deep and low steel pipe and sheet piling bulkhead walls, steel pipe tieback A-frame, monopile and multi-pile shore and offshore mooring dolphins, dredging with offshore disposal, general earthwork, site development, utilities and asphalt work.

This project involves the mechanical dredging, using the clamshell dredger “Virginian”, of approximately 60,000 cubic yards of material from the CT3 construction site where cruise ships will dock. The excavated material is placed in a scow and dumped offshore at the Ocean Dredged Material Disposal Site (ODMDS). The project is expected to complete by end of August 2019.

Shore Protection Project – Sand Key, Treasure Island and Long Key Segments

GrimDeeper was contracted to perform third-party turbidity monitoring on this Shore Protection Project – Sand Key, Treasure Island and Long Key Segments in Pinellas County, Florida. USACE is the contracting officer, with the Florida Department of Environmental Protection (FDEP) providing environmental oversight. Norfolk Dredging Company (“NDC”) is the prime dredging contractor.

This project involves the hydraulic dredging, using the cutter suction dredge “Charleston”, of approximately 200,000 cubic yards of material from the Blind Pass Inlet to re-nourish approximately 2,000 feet of Upham Beach. The beach nourishment will begin at the southern inlet jetty and progress southeastward along the shoreline until completed. The project is expected to complete by June 30, 2019.

 

LINKS:
5/29/2019 – In the News – Dredging Today Article
5/31/2019 – In the News – Dredging Today Article

Canaveral Harbor Maintenance Dredging
39 Through 44-Foot Project

GrimDeeper was contracted to perform third-party turbidity monitoring on this Canaveral Harbor Maintenance Dredging 38 Through 44-Foot Project dredging project. USACE is the contracting officer, with additional funding provided by the Canaveral Port Authority (CPA – project sponsor) and the Florida Department of Environmental Protection (FDEP). Norfolk Dredging Company is the prime dredging contractor.

This project involves the mechanical dredging, using the clamshell dredgers “Atlantic” and “Virginian”, of approximately 1-million cubic yards of material from the Port Canaveral entrance channel. There will also be additional work inside the Port. The excavated material is placed in a scow and placed either offshore at the Ocean Dredged Material Disposal Site (ODMDS) or depending on the quality of the material, the Nearshore Disposal Area (“NDA”). The project is expected to complete by early August 2019.

Canaveral Harbor Sand Bypass Project – Phase V

GrimDeeper was contracted to perform third-party turbidity monitoring on this Canaveral Harbor Sand Bypass (Phase V) beach nourishment dredging project. USACE is the contracting officer, with additional funding provided by the Canaveral Port Authority (CPA – project sponsor) and the Florida Department of Environmental Protection (FDEP). The U.S. Air Force’s 45th Space Wing and Brevard County are providing logistical support. Norfolk Dredging Company is the prime dredging contractor.

Phase I of this project involved the mechanical dredging, using the clamshell dredger “Atlantic”, of approximately 12,000 cubic yards of material from the Port Canaveral entrance channel for a temporary pipeline to transport the material in Phase II. The excavated material from the pipeline trench was placed in a scow and placed offshore at the Ocean Dredged Material Disposal Site (ODMDS). Some material was side-casted.

After the trench was completed and surveyed, the 24-inch pipeline was placed across the channel just below the authorized depth of the inlet to not impact or interfere with vessels entering or exiting the Port. Phase I of this project was completed on November 23, 2018. Turbidity monitoring included sampling at the dredge location, three times daily (12-hour schedule).

Phase II started on 12/6/2018, after approximately 2.3 miles of submerged and floating pipeline was added to transport the dredged material from the dredge location on the North side of jetty (Sand Bypass Dredged Area – SBDA) to the beach placement area on the South side of the jetty. Over the period of the next five (5) months, approximately 1.3 million cubic yards of sand will be pumped from the cutter suction dredge “Charleston” to approximately 3.5 miles of shoreline South of the jetty. The beach nourishment will progress southward along the shoreline by about 100-150 feet each day. Turbidity monitoring includes sampling at the dredge and the beach nourishment site locations, three times daily (12-hour schedule).

The CPA has created a website to provide the latest updates on the Canaveral Harbor Sand Bypass Project. The link to this website is: Canaveral Port Authority Project Status Website.

Please check back for regular updates.

Click on any picture below to view the larger image:

St. Lucie Inlet Maintenance Dredging Project

GrimDeeper was contracted to perform third-party turbidity monitoring on this inlet maintenance dredging project. USACE is the contracting officer, in partnership with The Martin County Board of County Commissioners, and The Florida Department of Environmental Protection (FDEP). Norfolk Dredging Company is the prime dredging contractor.

The St. Lucie Inlet (SLI) Maintenance Dredging Project involves the mechanical dredging, using the clamshell dredger “Virginian”, of approximately 550,000 cubic yards of material from the SLI, entrance channel and impoundment basin into a scow. The scow is then transported by a towing vessel to the offshore storage placement area, approximately 11-miles South of the SLI. The scow is discharged at the offshore storage placement area for utilization on future storm protection and restoration projects.

Video Links:

Watch dredge “Virginian” working at St. Lucie Inlet (YouTube)
Watch tug vessel “Kendall J. Hebert” tow scow to dump site and open (YouTube)

Click on any picture below to view the larger image: