2,617 articles
General contractor
A general contractor, also called a main or building contractor, holds the primary contract for constructing an entire project and subcontracts specialized trades such as electrical and plumbing.
Geological strength index
The geological strength index (GSI) is a rock mass characterization system developed by Evert Hoek in 1994, estimating strength of jointed rock masses for tunnel, slope, and foundation design.
Geomembrane canal lining
Geomembrane canal lining is the use of welded impermeable polymer sheets to seal irrigation canals against seepage, cutting losses that can reach 30 to 50 percent of carried water.
Geopolymer concrete
Geopolymer concrete (GPC, also called geocrete) is concrete whose binder comes from alkali-activated fly ash, slag, or metakaolin, cutting CO2 emissions by up to 70%.
George Evangelos Leventis
George Evangelos Leventis is a Greek-American geotechnical engineer who leads Langan Engineering's international practice and was elected to the National Academy of Engineering's Class of 2026.
George Washington Bridge
The George Washington Bridge, also called the GW Bridge, is a double-decked suspension bridge carrying Interstate 95 across the Hudson River between Manhattan and Fort Lee, New Jersey.
George Washington Gale Ferris Jr.
George Washington Gale Ferris Jr. (1859–1896) was an American civil engineer from Pittsburgh who built the original Ferris wheel for the 1893 Chicago World's Fair.
George Washington Goethals
George Washington Goethals (1858–1928) was an American army officer and civil engineer who directed the Panama Canal's completion and served as first governor of the Panama Canal Zone.
Geotechnical investigation
Geotechnical investigation, also called site investigation, explores a site's soil, rock, and groundwater through drilling, in-situ testing, and laboratory testing, producing a geotechnical report that guides foundation design.
Géotechnique
Géotechnique is a peer-reviewed scientific journal covering geotechnical engineering, founded in 1948 and published monthly, spanning soil and rock mechanics, engineering geology, and environmental geotechnics.
Geotextile tube
A geotextile tube is a large, elongated container of water-permeable geotextile fabric filled hydraulically with sand or dredged material, used in coastal protection and flood control.
Gerald Desmond Bridge
The Gerald Desmond Bridge was a steel-truss through-arch highway bridge in Long Beach, California, opened in 1968 and replaced in 2020 by the Long Beach International Gateway Bridge.
Germicidal lamp
A germicidal lamp is an ultraviolet light source, usually a low-pressure mercury-vapor lamp emitting 253.7 nm UV-C, that inactivates bacteria, viruses, and protozoa in water, air, and surface disinfection.
Gezhouba Dam
Gezhouba Dam (葛洲坝) is a large hydroelectric dam on the Yangtze River at Yichang, Hubei, China, built starting in 1970 as the test dam for the Three Gorges project.
Gezira Scheme (مشروع الجزيرة)
The Gezira Scheme (مشروع الجزيرة) is a large irrigation scheme for cotton and food crops on the plain between the Blue Nile and White Nile, inaugurated in 1924.
Ghazipur landfill
The Ghazipur landfill is a municipal solid waste dumpsite in East Delhi, India, operating since 1984. It exceeded its design capacity in 2002 and stands about 65 meters high.
Giant Sea Wall Jakarta
The Giant Sea Wall Jakarta (Tanggul Laut Raksasa) is a proposed seawall closing Jakarta Bay to protect Indonesia's sinking capital from coastal flooding and rising seas.
Gilgel Gibe III Dam
Gilgel Gibe III Dam, also known as Gibe III, is a 250 m roller-compacted concrete dam and 1,870 MW hydroelectric plant on Ethiopia's Omo River.
Girder bridge
A girder bridge is a bridge whose deck slab is carried on beams called girders, the simplest bridge type, with steel girders shaped as I-sections or boxes.
Glanum dam
Glanum dam, also called the Vallon de Baume or Peirou dam, a Roman arch dam of the first century BC near Saint-Rémy-de-Provence, France; the oldest known arch dam, feeding a 500 m aqueduct that supplied Glanum's triumphal fountain and baths.
Glen Canyon Dam
Glen Canyon Dam is a 710-foot-high concrete-arch dam on the Colorado River in northern Arizona that impounds Lake Powell, the second-largest reservoir in the United States.
Glenda (tunnel boring machine)
Glenda is the name given to a tunnel boring machine, following the tunnelling tradition of naming such machines after women, though no published record verifies her project or fate.
Glenfinnan Viaduct
The Glenfinnan Viaduct is a curved 21-arch concrete railway viaduct in the Scottish Highlands, built from 1897 to 1901 and known for Harry Potter films.
Gleno Dam
The Gleno Dam was a multiple-arch dam in Lombardy, Italy, built between 1916 and 1923, whose collapse in December 1923 killed at least 356 people.
Glienicke Bridge
The Glienicke Bridge (Glienicker Brücke) is a steel bridge over the Havel between Berlin and Potsdam, known as the "Bridge of Spies" for three Cold War agent exchanges.
Glines Canyon Dam
Glines Canyon Dam, also known as the Glines Canyon Hydroelectric Power Plant, was a 210-foot concrete arch dam on Washington's Elwha River, built in 1927 and removed by 2014.
Global Industry Standard on Tailings Management
The Global Industry Standard on Tailings Management (GISTM) is a voluntary standard for safe mine tailings management, launched in 2020 after the Brumadinho dam collapse.
Global Navigation Satellite System surveying
GNSS surveying is the use of satellite navigation signals from GPS, GLONASS, BeiDou, and Galileo, received by survey-grade equipment, to determine precise coordinates for control and mapping.
Global Water Resources, Inc.
Global Water Resources, Inc. is an American pure-play water resource management company operating regulated water, wastewater, and recycled water utilities around Phoenix and Tucson, Arizona, listed on NASDAQ as GWRS.
Glossary of civil engineering
A glossary of civil engineering is a controlled collection of defined terms used in the design, construction, and maintenance of built infrastructure, serving engineers, contractors, and lawyers.