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drainage, in agriculture

(Encyclopedia) drainage, in agriculture, the removal of excess water from the soil, either by a system of surface ditches, or by underground conduits if required by soil conditions and land contour.…

Bartlesville

(Encyclopedia) Bartlesville Bartlesville bärˈtəlzvĭl [key], city (2020 pop. 37,290), seat of Washington co., NE Okla…

prefabrication

(Encyclopedia) prefabrication, in architectural construction, a technique whereby large units of a building are produced in factories to be assembled, ready-made, on the building site. The technique…

Pittsfield

(Encyclopedia) Pittsfield, city (1990 pop. 48,622), seat of Berkshire co., W Mass., between mountain ranges, on branches of the Housatonic River; inc. as a town 1761, as a city 1889. The city is the…

Sparks

(Encyclopedia) Sparks, city (1990 pop. 53,367), Washoe co., W Nev., just E of Reno; inc. 1905. The Southern Pacific RR was the major employer until the dieselization of railroad engines forced the…

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…

Guri Dam

(Encyclopedia) Guri Dam, 24,364 ft (7,426 m) long and 531 ft (162 m) high, on the Caroní River, Bolívar state, SW Venezuela. Built in phases between 1963 and 1986, the dam consists of a central…

viaduct

(Encyclopedia) viaductviaductvīˈədŭktˌ [key] [Lat.,=road conveyor], type of bridge for carrying a highway or railroad over a valley, over low ground, or over a road. It is commonly constructed in the…

Roanoke, city, United States

(Encyclopedia) RoanokeRoanokerōˈənōk [key], city (1990 pop. 96,397), independent and in no co., SW Va., on the Roanoke River; settled c.1740, inc. 1882, as a city, 1884. It is situated between the…

Bellingham

(Encyclopedia) Bellingham Bellingham bĕlˈĭnghămˌ [key], city (2020 pop. 91,482), seat of Whatcom co., NW Wash., a port…