5,208 articles
Deck (building)
A deck, also called timber decking, is an outdoor platform attached to a house or free-standing, built on beams and joists and surfaced with decking boards.
Deck arch bridge
A deck arch bridge is an arch bridge whose roadway lies completely above the arch, carried on masonry fill or spandrel columns, as in closed- and open-spandrel forms.
Deconstructivism
Deconstructivism, or Deconstructivist architecture, is an architectural movement of the late 1980s defined by irregular, fragmented, non-rectilinear forms rejecting Modernist grids and rational structure, named by a 1988 MoMA exhibition.
Deep soil mixing
Deep soil mixing (DSM) is an in situ ground improvement technique that blends soil with cement or lime to form stronger, less permeable columns or walls.
Deer Island Waste Water Treatment Plant
The Deer Island Waste Water Treatment Plant is Boston's main sewage treatment facility, operated by the MWRA, serving 2.3 million people in 43 Greater Boston communities.
Defensive wall
A defensive wall, also known as a city wall, is a barrier of earth, brick, or stone built to protect settlements or frontiers, ranging from city circuits to frontiers hundreds of kilometers long.
Degree of static indeterminacy
The degree of static indeterminacy is the number by which a structure's unknown forces and reactions exceed the equilibrium equations available to solve them; zero means statically determinate.
Delaware and Hudson Canal
The Delaware and Hudson Canal was a 108-mile privately built canal from Honesdale, Pennsylvania, to Rondout on the Hudson River, carrying anthracite coal to market from 1828 to 1898.
Delaware and Raritan Canal
The Delaware and Raritan Canal is a historic 44-mile canal in central New Jersey, opened in 1834 to link Bordentown on the Delaware River to New Brunswick.
Delaware Aqueduct
The Delaware Aqueduct is an 85-mile water tunnel built between 1937 and 1944 that carries drinking water from Rondout Reservoir to New York City, supplying about half the city's needs.
Delaware Memorial Bridge
The Delaware Memorial Bridge is a pair of twin suspension spans carrying I-295 and US 40 across the Delaware River between New Castle, Delaware, and Pennsville, New Jersey.
Delay analysis
Delay analysis is the examination of construction schedules and factual records to determine when project delay occurred, its causes, and its effect on completion, underpinning extension-of-time claims and disputes.
Delhi Cantonment
Delhi Cantonment, popularly Delhi Cantt, is a combined military and civilian cantonment in southwest Delhi, India, established in 1914 and run by the Delhi Cantonment Board.
Delta Programme
The Delta Programme (Deltaprogramma) is the Netherlands' national program for flood protection, freshwater supplies, and climate-resilient planning, directed by a Delta Commissioner and financed by a Delta Fund under the 2012 Delta Act.
Delta Works
The Delta Works, or Deltawerken, are dams and storm surge barriers in the Netherlands built after the 1953 North Sea flood to protect the delta.
Delta-Mendota Canal
The Delta-Mendota Canal is an irrigation canal in central California, built from 1946 to 1952 to carry water from the Sacramento-San Joaquin Delta south to the San Joaquin Valley.
Deltacommissie
The Deltacommissie, or Delta Commission, is the name of two Dutch state advisory committees on water safety, appointed after the 1953 flood and again in 2007.
Demolition
Demolition, also known as razing, is the dismantling or wrecking of a building or structure. It is among construction's most dangerous work and generated over 90 percent of US construction waste in 2018.
Denison Dam
Denison Dam is a rolled earth-fill dam on the Red River near Denison, Texas, built by the Army Corps of Engineers from 1939 to 1944 and impounding Lake Texoma.
Denny S. Parker
Denny S. Parker is an American environmental engineer who spent about 45 years at Brown and Caldwell and was elected to the National Academy of Engineering in 2004.
Denver Millennium Bridge
The Denver Millennium Bridge is a cable-stayed pedestrian bridge completed in 2002, carrying the 16th Street pedestrian mall over railroad tracks near Denver Union Station.
Denville Hall
Denville Hall is a residential and nursing care home in Northwood, London, opened in 1926 by Alfred Denville MP as a haven for retired actors and actresses.
Deoksugung
Deoksugung (덕수궁), formerly Gyeongungung, is a Joseon dynasty royal palace in Jung-gu, Seoul, that served as the imperial palace of the Korean Empire proclaimed by Emperor Gojong in 1897.
Deriner Dam
Deriner Dam is a 249 m double-curvature concrete arch dam on the Çoruh River, 5 km upstream of Artvin, Turkey, feeding a 670 MW underground hydroelectric plant.
Derna dam collapses
The Derna dam collapses were the 2023 failures of two aging dams above Derna, Libya, during Storm Daniel, unleashing a flood that killed thousands and destroyed whole neighborhoods.
Derry city walls
The Derry city walls, also called the Walls of Derry, are a complete circuit of 17th-century fortifications in Derry, Northern Ireland, built 1613–1618 and famous for withstanding the 1689 siege.
Derwent Reservoir (Derbyshire)
Derwent Reservoir is a reservoir in the Upper Derwent Valley of the Derbyshire Peak District, England, brought into use in 1916 to supply drinking water to nearby cities.
Desalination
Desalination is the removal of dissolved salts from seawater or brackish water to produce fresh water; over 20,000 plants operate worldwide, most using reverse osmosis membranes.
Desalination by country
Desalination by country surveys national reliance on removing salt from seawater and brackish water, with global capacity of 69.3 million m³/day led by Saudi Arabia, China, and the United States.
Desalination plant intake and outfall engineering
Desalination plant intake and outfall engineering designs the systems that bring raw seawater into a plant and return concentrated brine, covering up to 20% of facility capital cost.