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cofferdam

(Encyclopedia)cofferdam, temporary barrier for excluding water from an area that is normally submerged. Made commonly of wood, steel, or concrete sheet piling (see pile), cofferdams are used in constructing the fou...

Greeley

(Encyclopedia)Greeley, city (2020 pop. 108,795), seat of Weld co., N Colo., at the base of the Front Range of the Rocky Mts.; inc. 1885. It is a rail and trade center...

Brooklyn Bridge

(Encyclopedia)Brooklyn Bridge, vehicular suspension bridge, New York City, southernmost of the bridges across the East River, between lower Manhattan and Brooklyn; built 1869–83. The achievement of J. A. Roebling...

topography

(Encyclopedia)topography təpŏgˈrəfē [key], description or representation of the features and configuration of land surfaces. Topographic maps use symbols and coloring, with particular attention given to the sh...

cantilever

(Encyclopedia)cantilever kănˈtəlēvər [key], beam supported rigidly at one end to carry a load along the free arm or at the free end. A slanting beam fixed at the base is often used to support the free end, as ...

East River

(Encyclopedia)East River, tidal strait, 16 mi (26 km) long and 600–4,000 ft (183–1,219 m) wide, connecting Upper New York Bay and Long Island Sound, New York City, and separating the boroughs of Manhattan and t...

ferry

(Encyclopedia)ferry, vessel providing passage over a river, lake, or other body of water for passengers, vehicles, or freight; the term is also applied to the place where the crossing is made and, by extension, to ...

denture

(Encyclopedia)denture, artificial replacement for natural teeth and surrounding tissue. Dentures are classified as partial or complete. The former are removable and maintained by clasps, or are fixed bridges with c...

Gateshead

(Encyclopedia)Gateshead gātsˈhĕd [key], metropolitan borough, NE England, on the Tyne River opposite ...

Florida Keys

(Encyclopedia)Florida Keys, chain of coral and limestone islands and reefs, c.150 mi (240 km) long, extending from Virginia Key, S of Miami Beach, to Key West, and forming the southern extremity of Florida. Between...