Great Lakes Dredge & Dock Corporation provides dredging services in the United States and internationally. It operates in two segments, Dredging and Environmental & Remediation. The Dredging segment is involved in capital dredging that consists of port expansion projects, land reclamations, trench digging for pipelines, tunnels and cables, and other dredging related to the construction of breakwaters, jetties, canals, and other marine structures. This segment also engages in channel deepening and port infrastructure development; coastal protection projects, which involve moving sand from the ocean floor to shoreline locations; and re-dredging of previously deepened waterways and harbors to remove silt, sand, and other accumulated sediments, as well as lake and river dredging, inland levee and construction dredging, environmental restoration and habitat improvement, and other marine construction projects. This segment serves federal, state, and local governments; foreign governments; and domestic and foreign private concerns, such as utilities, oil, and other energy companies. The Environmental & Remediation segment provides soil, water, and sediment environmental remediation for the municipal and private party markets, as well as industrial cleaning, abatement, and hazardous waste removal services. This segment serves general contractors, corporations, Superfund potentially responsible parties, environmental engineering and construction firms, and local government and municipal agencies. The company operates a fleet of 31 dredges, including 9 deployed internationally; 23 material transportation barges; and various other support vessels. The company was formerly known as Lydon & Drews Partnership and changed its name to Great Lakes Dredge & Dock Corporation in 1905. Great Lakes Dredge & Dock Corporation was founded in 1890 and is headquartered in Oak Brook, Illinois.