![]() With the extensive amount of equipment and personnel, it’s hard to keep everything running smoothly, and a breakdown at one of the three sites affects the rest of the project. While it’s all one project, you basically have three separate work areas operating simultaneously. “It takes a lot of moving parts, spread out over 35 miles by water (1.5-hour drive by land), to make the dredging and unloading process come together. He said one of the biggest challenges for the project was logistics and coordination. The dredges teamed up on the angles because there was more bank and enough room for both dredges to work together, without being on top of each other,” Bushery said. ![]() “In the lower bank areas, we only kept one dredge in a section because it would go fast. The dredges worked simultaneously in the channels. It was great being able to see the area again and how much it’s changed,” Bushery said.Īt Poplar Island, Norfolk Dredging placed material at four different discharge points in three cells to facilitate testing being done by the Corps at the site. “Early on in my career with NCD, I was on the project that helped build the Masonville DMCF. At Masonville, Norfolk Dredging could not pump slurry water from the bay, so it used recirculating pumps. ![]() The average tow distance to Masonville DMCF was about 1.5 miles. The Poplar Island site was about 25 to 35 miles away from the dredging site. Mike Bushery, Norfolk Dredging project manager, said the dredged material was loaded by the clamshell dredges into the scows and then towed by tugboats to the disposal sites, where the Vicksburg unloaded the barges. Sarbanes Ecosystem Restoration Project at Poplar Island, located in the eastern Chesapeake Bay near Tilghman Island in Talbot County, Maryland. Approximately 2.1 million cubic yards of material dredged from the Chesapeake Bay channels, including the Craighill Entrance, Craighill Channel, Craighill Angle, Craighill Upper Range and the Cutoff Angle channels, was beneficially reused at the Paul S. Norfolk Dredging placed approximately 500,000 cubic yards of material from Curtis Bay Channel at the Masonville Dredge Material Containment Facility (DMCF), located in Anne Arundel County. The material consisted mainly of mud, silt, sand and shell and was placed at two sites. Norfolk Dredging also brought various land based equipment, including thousands of feet of HDPE pipeline, recirculation pumps, bulldozers, front-end loaders, extended boom forklifts, generators, air compressors and welding machines. The Vicksburg, a 24-inch hydraulic barge unloader two, 4,500-cubic-yard hopper barges (scows) three, 6,500-cubic-yard scows one 6,000-cubic-yard scow, three tender tugs, four to five tugs, a support tug, drag barge and two crew boats joined the dredges on the project. Norfolk Dredging did the work with two Cable Arm clamshell bucket dredges, the 38-cubic-yard Atlantic and the 30-cubic yard Virginian. Cutoff Angle was last dredged in 2014, Craighill Upper Range in 2009, Craighill Angle in 2017, Craighill Channel in 2007, Craighill Entrance in 2016, and Curtis Bay in 2009.Ĭorps Baltimore District Project Manager Jeremiah Spiga said the channels generally shoal about two feet or more along the outside quarter of the channel. The channels were dredged to 51 feet and vary in width from 400 to 700 feet. The work is part of the regular maintenance of the multiple channels that go from the mouth of the Chesapeake Bay in Virginia all the way into Baltimore Harbor that require periodic dredging to ensure continued safe navigation for vessels going in and out of the Port of Baltimore. Curtis Bay Channel, not pictured here, will also be dredged as part of the FY19 maintenance dredging scheduled to begin December 2018 and continue through spring 2019 through a $17.5 million contract. This map shows the five Baltimore Harbor approach channels being dredged by the U.S. The current project dredged material from six federal channels. The work is part of the regular maintenance of the multiple channels that go from the mouth of the Chesapeake Bay in Virginia into Baltimore Harbor. Work began in December 2018 and was completed on April 14. Army Corps of Engineers Baltimore District awarded the $24.6 million contract. In April, Norfolk Dredging Company (NDC) finished dredging 2.6 million cubic yards from the shipping channels leading to the Port of Baltimore.
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