Great Lakes Dredge & Dock Corporation provides dredging services in the United States and internationally. It operates in two segments, Dredging and Environmental & Infrastructure. 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; re-dredging of previously deepened waterways and harbors; and lake and river dredging, inland levee and construction dredging, environmental restoration and habitat improvement, and other marine construction projects. It serves federal, state, and local governments; foreign governments; and domestic and foreign private concerns, such as utilities, oil, and other energy companies. The Environmental & Infrastructure segment provides construction services on soil, water, and sediment for public and private clients; environmental and geotechnical construction; and remediation services, including the containment, immobilization, or removal of contamination from an environment. It serves general contractors, corporations, superfund potentially responsible parties, and environmental engineering and construction firms, as well as federal and municipal government agencies. The company operates a fleet of 28 dredges, including 7 deployed internationally; 23 material transportation barges; 2 drillboats; 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.