May/June - DR/NA
THE U.S. ARMY CORPS OF ENGINEER’S CONDUCTING MAINTENANCE DREDGING AT PONCE DE LEON INLET
On April 11, the U.S. Army Corps of Engineers Jacksonville District began dredging the Ponce de Leon Inlet near New Smyrna Beach in Florida, and the project was completed on May 7.
The inlet shoaled in following Hurricane Matthew, which hit the East Coast last October. The hopper dredge Currituck will remove 130,000 cubic yards of material and place it nearshore of New Smyrna Beach using the covered Sapphire Road cross-island pipe.
The Currituck dredges Ponce de Leon Inlet in Florida.
PANAMA CITY BEACHES ARE GETTING NEW SAND
Weeks Marine of Louisiana began a $14.1 million beach nourishment project in early April in Panama City, Florida. Four segments of beach, County Pier, City Pier, Treasure Island and Pinnacle Port, encompassing about 3.5 miles of shoreline, will receive sand being dredged from a borrow area on the floor of the Gulf of Mexico about 3 miles offshore.
Work began at County Pier where crews will be working for about two weeks before they move up to the next location. The project will pump 840,000 cubic yards of sand onto the four locations. All work must be completed by May 1 to comply with turtle nesting season rules.
The beaches last received sand in 2011, with nourishment projects occurring regularly since 1999. This year’s project is being locally-funded mostly by the Bay County Tourist Development Tax which is a five percent bed tax charged on rental rates. The Bay County Tourist Development Commission has also applied for a $4.5 million grant from the State of Florida Beach Management Funding Assistance Program for reimbursement of the state cost-share.
SOUTHWIND COMPLETES INLET DREDGING IN NC
Southwind Construction Company has completed dredging the Intracoastal Waterway and Carolina Beach Inlet Crossing in North Carolina. The project began the first week of April.
Cutter suction dredge Wilko and workboats Proud Mary and Miss Leanne David Lynn were used to remove 500,000 cubic yards of sediment from the waterway and deposit it on sections of Carolina Beach. The U.S. Army Corps of Engineers specified sand drop locations to ensure sand was not placed where it would be immediately washed away by currents and fill in the inlet again.
The Wilmington District awarded the contract of $6.4 million to Southwind Construction Company last August.
Carolina Beach Inlet in North Carolina.
LAKE DECATUR PROJECT RESUMES AFTER WINTER SHUTDOWN
Great Lakes Dredge & Dock has completed nearly half of the dredging to remove 10.7 million cubic yards of sediment from the bottom of the lake and pumping it to a 523-acre storage area.
The cutter head suction dredge LW hydraulically removes sediment producing a slurry of 10 to 15 percent sediment and 85 to 90 percent water that is pumped through a 24-inch pipeline and pumping station to the city’s sedimentation basin.
The goal of the project is to increase the capacity of Lake Decatur by 30 percent, providing an additional 52 days of water supply.
The work also includes the creation of two sediment traps to capture sediment before it reaches the main body of the lake. In addition, GLDD is using its dredge to dig a trench under the lake to allow the city to replace an existing water main with a larger one that will increase water flow to residents. The work should be completed by the end of 2019.
Great Lakes Dredge & Dock dredge LW works on Lake Decatur in Illinois.
The U.S. Army Corps of Engineers Wilmington District contracted with Great Lakes Dredge and Dock (GLDD), for $7.5 million, to remove shoaling in the Beaufort Inlet in North Carolina.
Sand is placed on Atlantic Beach in North Carolina. Great Lakes Dredge and Dock dredge Illinois is dredging sand in the Beaufort Inlet.
CORPS CONDUCTS MAINTENANCE DREDGING IN GRAYS HARBOR
The annual maintenance dredging of Grays Harbor in Washington began April 10 and is expected to be completed by May.
This U.S. Army Corps of Engineers Seattle District project is being supported by the Portland District hopper dredges Yaquina and Essayons, which will together remove 800,000 cubic yards of material.
GALVESTON DISTRICT AWARDS CONTRACT TO MANSON CONSTRUCTION COMPANY
The U.S. Army Corps of Engineers Galveston District announced it has awarded a $8.9 million contract to Manson Construction Company of Seattle, Washington, for maintenance dredging in Galveston, Texas.
PCBS BEING DREDGED FROM THE FLOOR OF CEDAR CREEK IN WISCONSIN
In early April, J.F. Brennan began its second year on a project to remove polychlorinated biphenyl (PCB) contaminated sediment from the floor of Cedar Creek and its adjoining ponds.
The project should be completed by the end of the year; however, it will depend on final findings from the EPA.
BEACH RENOURISHMENT STARTS ON THE TEXAS GULF COAST
Weeks Marine received a $19.5 million contract from the U.S. Army Corps of Engineers Galveston District to pump 1 million cubic yards of sand onto 3.5 miles of eroded beaches on the Texas Gulf Coast.
J.F. BRENNAN RESUMES DREDGING THE FOX RIVER
A multi-year effort to clean up contaminated sediment from the Fox River in Green Bay Wisonsin started a new season on March 20.
Work will continue until November. Slurry being pumped through filter presses at the processing facility for contaminated sediment from the Fox River in Green Bay.
Slurry being pumped through filter presses at the processing facility for contaminated sediment from the Fox River in Green Bay.
DREDGING IN MOREHEAD CITY HARBOR CONTINUES
A bulldozer works on the beach in Morehead City moving sand dredged from Great Lakes dredge Illinois, working in the nearby channel.
The U.S. Army Corps of Engineers Jacksonville District has partnered with St. Johns County and the Florida Inland Navigation District (FIND) to provide sand to Vilano Beach through the beneficial use of dredged material from navigation projects in St. Augustine Inlet.
“Under this scenario, we dredge until the federal channel is cleared of shoal material. The volume of sand retrieved determines how far we can place along the beach. We’re not authorized to go outside the channel to increase the length of beach placement. In beach renourishment projects, the opposite holds true – we determine the length of beach renourishment needed, and then dredge enough sand to meet that need,” Harrah said.
Pipes wait to be set in Vilano Beach before sand arrives from the St. Augustine Inlet.