![]() ![]() ![]() Hoses connected to a pipeline extending to shore are attached to the hopper dredge discharge manifold. ![]() The dredge then moors to a structure, buoy, or multiple buoy berth. A hopper dredge fills its hoppers as it dredges the bottom. Direct pumpout is a common method of removing dredged material from hopper dredges. During this time, the dredge may move much faster and may turn frequently. When the dredge's hopper is loaded, the dredge maneuvers both in and out of the channel to reach the relocation site. These signals also indicate that the dredge is restricted in its ability to maneuver and you must stay clear of the vessel. At night, a red light over a white light over another red light means the dredge is working. During the day, a black ball over a black diamond over another black ball will be shown. Normally, you can tell when they are dredging by the signals on the main mast. Hopper dredges perform the largest and most dangerous jobs - clearing channels and offshore sandbars from the mouths of major rivers. flagged.A Hopper dredge is a propelled floating plant which is capable of dredging material, storing it onboard, transporting it to the disposal area, and dumping it. Weeks, which can accommodate 26 people, will be Lloyd’s classed Maltese Cross 100A1 Hopper Dredge, LMC, UMS registered and USCG certified and U.S. Weeks, putting her to work deepening shipping lanes, nourishing beaches lost to erosion, and completing coastal restoration due to storm damage.” “These two vessels have an equivalent hopper size and pumping capacity, and we look forward to utilizing the R.B. Army Corp of Engineers to maintain ports, harbors, and other waterways to ensure ship navigation is possible,” said Eric Ellefsen, president, Weeks Marine. Weeks, which will join her sister vessel in various dredging activities primarily aiding the U.S. “We are excited to see the launch of our newest trailing suction hopper dredge, the R.B. Electrical power comes from two Hyundai 3,400-kW gensets, a GE 6L250, 1,423-kW auxiliary genset and a Caterpillar C18, 425-kW emergency genset. For added maneuverability, there is a Wärtsilä VFD fixed pitch bowthruster tunnel unit, producing 730 kW of power. Main propulsion comes from twin GE 16V250 diesel engines, producing 5,682 hp each and two Wärtsilä controllable pitch propeller systems in nozzles. There are two jet pumps, powered at 445 kW each. The Magdalen features two booster pumps, powered at 1,600 kW each and an HD dredge pump, powered at 1,600 kW. The vessel includes an electrical power, propulsion, and dredge machinery package by Royal IHC, GE Tier 4 engines, along with several accommodation and crew comfort upgrades. Weeks is nearly identical to the Magdalen delivered by ESG in 2017. team over multiple projects, and we are proud to build another dredge vessel that will enhance our waterways and restore our coastlines,” Joey D’Isernia, president of Eastern Shipbuilding Group, said in a statement. “Eastern Shipbuilding Group has enjoyed a strong partnership with Weeks Marine Inc’s. Joe, Fla., facility for an on-time delivery in 2023. The vessel outfitting and trials will be conducted at Eastern’s Port St. ![]() The new trailing suction hopper dredge, being constructed at ESG’s Allanton, Fla., shipyard, has a hopper capacity of 8,550 cubic yards. Weeks, a co-founder of Weeks Marine and married to Magdalen Weeks, the namesake of the sister vessel Magdalen (ESG 256), also built by Eastern. Weeks (ESG Hull 258) is named for Richard B. Weeks, the second trailing suction hopper dredge the shipbuilder has constructed for Weeks Marine Inc.ĭesigned by Royal IHC, the R.B. ![]()
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