Dredging Scheduled for North Cove Federal Navigation Project
The U.S. Army Corps of Engineers awarded a $4283562 contract to DonJon Marine Company of New Jersey for the dredging of the North Cove Federal Navigation Project in Old Saybrook Connecticut.
The project will remove 286000 cubic yards of sediment from the entrance channel an 11-foot anchorage and a 6-foot anchorage. One mechanical dredge will work in the cove to remove and place shoal material into a hopper scow that will be pushed by tug to a location near the mouth of the Connecticut River. At this location a second dredge will trans-load material to a larger dump scow that tugs will push to the Central Long Island Sound Disposal Site approximately 35 miles southwest of the job site
To comply with environmental regulations the work will begin by October 31 and finish by early March 2018.
The Corps is managing the project that was funded in part by the state of Connecticut which bonded $7500000 for permitting design and construction. The site was last dredged in 2008.
Green Bay Harbor Dredging to Begin in October
Great Lakes Dock & Materials LLC of Michigan is scheduled to remove 99000 cubic yards of material from Green Bay Harbor in northeast Wisconsin. Work began October 3 and is scheduled to end in December 2017.
The $2.5 million contract was awarded under the U.S. Army Corps of Engineers Detroit District Multiple Award Task Order Contract which is designed to expedite bid solicitation and awards by identifying ten companies capable of dredging channels and harbors of the Great Lakes.
The company will place 60000 cubic yards of material in the Bayport Confined Disposal Facility on the north side of the Fox River and 39000 cubic yards in the Cat Island dredged material disposal facility. The sediment on Cat Island will help restore habitat and wetlands.
GLDD Is Renourishing Ocean City Beaches
Great Lakes Dredge & Dock Company is renourishing the beaches of Ocean City Maryland under a $12.7 million contract with the U.S. Army Corps of Engineers Baltimore District.
The 325-foot trailing suction hopper dredge Liberty Island will pump approximately 930000 cubic yards of sand from an offshore deposit area off Great Egg Harbor Inlet onto the beaches. The goal is to rebuild the engineered beach berm to its full design elevation. The beach is part of Ocean City’s coastal storm risk management project that is an 8-mile long beach berm constructed to 7 feet above mean high tide. A concrete capped steel sheet bulkhead abuts the city’s boardwalk and dunes protect areas away from the boardwalk.
While the Corps has an agreement with Ocean City to renourish beaches every four years this project was pushed up to compensate for erosion caused during a 2016 winter storm. This is the eighth time the Corps has renourished the beach since the 1990’s.
The Corps is funding 90 percent of the cost with the state and city covering the remaining. The work is scheduled to begin the last week of October and should be completed by January.
Housatonic River Will Be Dredged to Authorized Depth
The U.S. Army Corps of Engineers New England District awarded a $9.3 million contract to Cashman Dredging and Marine Contracting Company of Quincy Massachusetts for the removal of 300000 cubic yards of sand from the shallow navigation channel of the Housatonic River.
The project is a partnership between the Corps and the Stratford Waterfront Harbor Management Commission and represents the largest state-funded dredging project to date.
Cashman is using its 197-foot split hull trailing suction hopper dredge Atchafalaya along with three tugboats and two 250-foot barges to bring the channel back to its authorized depth of 18-feet and width of 200-feet. Sand from the project will be taken by barge and pumped onto Hammonasset Beach State Park in Connecticut to renourish the beach. The channel was last dredged in 2012 by the dredge Currituck which removed 50000 cubic yards of material that had been deposited from earlier storms. This was considered Phase I of the overall dredging project and provided comprehensive data needed to proceed with the current project Phase II. Included in Phase I was the finding that the Housatonic was a source of clean sand suitable for beach renourishment therefore erasing the need to place dredged material into the Long Island Sound. Dredge material placement has been a source of legal action between New York and Connecticut.
The work began October 6 and is expected to be completed by the end of February.
New Jersey Comprehensive Channel Dredging Continues
Areas of Forked River and Barnegat Bay in New Jersey are being dredged as part of an $8.7 million project to restore safe navigation to state-owned channels under the New Jersey Department of Transportation’s (NJDOT) comprehensive State Channel Dredging and Emergency Response Program.
This area is critical to a large fishing fleet that contributes $25.6 million in direct fish value to the U.S. economy. In addition the area is designated a “Surf Station” by the U.S. Coast Guard meaning it is hazardous and needs a safe navigation channel for the USCG to fulfill its mission of life safety and search and rescue operations.
Great Lakes Dredge & Dock began work on October 14. The project includes dredging five channels Double Creek Mainland Double Creek Inlet High Bar Harbor and Barnegat Light Stake. Crews placed submerged and floating pipeline near the channels to pump sediment to the Oyster Creek Confined Disposal Facility and sand to Barnegat Light Beach.
Other dredging that is part of the entire NJDOT project was completed in September and included channels of the Forked River including Forked River Middle Branch and Spur the South Spur and the “Elks” channel.
Corps Jacksonville District Awards Contract for Post-Matthew Renourishment
Great Lakes Dredge & Dock was awarded the Martin County Hurricane and Storm Damage Reduction Contract by the U.S. Army Corps of Engineers Jacksonville District.
The $7250400 contract is to dredge sand from offshore and place approximately 250000 cubic yards of sand along four miles of beach on Hutchinson Island to widen the beach berm and raise the overall elevation. Beach renourishment was needed following erosion caused by Hurricanes Matthew and Irma.
The project is being funded in part under the Flood Control and Coastal Emergency (FCCE) fund that covers damages incurred from hurricanes. FCCE can provide 100 percent cost recovery for the repair or rehabilitation of federal coastal storm risk management projects
To stay within Florida’s environmental timeframe work is scheduled to begin in November 2017 and end by March 2018.
Quileute Indian Reservation Will Benefit From Dredging
Portable Hydraulic Dredging LLC from Anchorage Alaska began dredging the Quillayute River on September 29 2017.
Under a $1.7 million contract from the U.S. Army Corps of Engineers Seattle District the company is using the 80-foot hydraulic cutter head dredge Renegade to remove approximately 60000 cubic yards of material. All clean material is being used to renourish Rialto Beach. The dredge area is in La Push Washington.
The dredging will provide safe navigation for U.S. Coast Guard station Quillayute River that performs search-and-rescue missions from a marina located on the Quileute Indian Reservation. The marina is also an important tribe asset serving the 800-year old fishing village allowing access to the Pacific Ocean.
The project should be completed by December.