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The Port of Miami Tunnel (also State Road 887) is a 4,200-foot (1,300 m) [3] bored, undersea tunnel in Miami, Florida.It consists of two parallel tunnels (one in each direction) that travel beneath Biscayne Bay, connecting the MacArthur Causeway on Watson Island with PortMiami on Dodge Island.
The National Utility Contractors Association (NUCA) is a trade association representing the underground utility industry in the United States. Founded in 1964, NUCA is the largest trade association for this industry in the country. [ 1 ]
Tunnel Construction. Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the ground conditions, the ground water conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logistics of supporting the tunnel excavation, the final use and shape of the tunnel and appropriate risk management.
With $48.666 billion in business with the U.S. federal government, Lockheed Martin, based in Bethesda, Maryland, is the largest U.S. federal government contractor. The Top 100 Contractors Report (TCR 100) is a list developed annually by the General Services Administration as part of its tracking of U.S. federal government procurement.
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The International Tunnelling and Underground Space Association (ITA-AITES) is a non-governmental, non-profit organization founded in 1974, [1] comprising currently 78 member nations [2] and 266 corporate or individual affiliate members, [3] aiming to encourage the use of the subsurface for the benefit of public, environment and sustainable development, and to promote advances in planning ...
Underwater construction is industrial construction in an underwater environment.It is a part of the marine construction industry. [1] It can involve the use of a variety of building materials, mainly concrete and steel.
The Oyu Tolgoi mine, also Oyuutolgoi (Mongolian: Оюутолгой, pronounced [ɔˌjʊˑtʰɔɮˈɢœˑ]; lit. "Turquoise Hill"), is a combined open pit and underground mining project in Khanbogd sum within the south Gobi Desert, approximately 235 kilometres (146 mi) east of the Ömnögovi Province capital Dalanzadgad.