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Caisson (lock gate)
A caisson gate is a large floating steel or concrete box used to close a dry dock or lock, flooded to sink it and pumped dry to float it away.
Caisson foundation
A caisson foundation, also known as a well foundation, is a deep foundation built inside a watertight enclosure sunk through water and weak soil to reach sound soil or rock.
Calamocha Roman bridge
Calamocha Roman bridge (Puente Romano de Calamocha): single-arch limestone bridge over the Jiloca River in Calamocha, Teruel, Aragon, Spain; Roman first phase with medieval alterations, on the Cástulo-Caesaraugusta road, Bien de Interés Cultural since 1981.
Calcium silicate hydrate
Calcium silicate hydrate (C–S–H) is the main hydration product of Portland cement, filling roughly 50% of hydrated paste volume and acting as the binding phase that gives concrete its strength.
Caldaccoli aqueduct
Caldaccoli aqueduct (Acquedotto romano di Caldaccoli), a 1st-century AD Roman aqueduct near Pisa, Italy, carrying water from the Pisan Mountains to the baths of Pisa; eight arches survive at San Giuliano Terme, name from Latin calidae aquae.
Caldecott Tunnel
The Caldecott Tunnel, also known as the Broadway Low Level Tunnel, is a four-bore highway tunnel carrying State Route 24 through the Berkeley Hills between Oakland and Orinda, opened in 1937.
Caledonian Canal
The Caledonian Canal is a 60-mile ship canal in Scotland linking Fort William and Inverness through the Great Glen. Designed by Thomas Telford, it opened in 1822.
CalFed Bay-Delta Program
The CALFED Bay-Delta Program was a joint state-federal program created in the mid-1990s to resolve water conflicts in the Sacramento–San Joaquin Delta, the hub of California's water supply.
Calgary Tower
The Calgary Tower, built as the Husky Tower and completed in 1968, is a 191-meter observation tower in downtown Calgary with 360° views of the city and Rocky Mountains.
California Aqueduct
The California Aqueduct, formally the Governor Edmund G. Brown California Aqueduct, carries water from the Sacramento-San Joaquin Delta to the San Joaquin Valley and Southern California.
California Department of Water Resources
The California Department of Water Resources (DWR) is the state agency managing much of California's water supply and operating the State Water Project, the nation's largest state-built water conveyance program.
California State Water Project
The California State Water Project, also called the State Water Project, is a California system delivering Northern California water to 27 million people and 750,000 acres of farmland.
California Street
California Street, San Francisco east-west thoroughfare from the Embarcadero through Nob Hill to the Richmond District; home of the California Street cable car line and the Muni 1 California bus route, with recent SFMTA safety and transit projects.
California Water Service Group
California Water Service Group is a San Jose-based holding company providing water and wastewater service to more than two million people across five western states.
Callender-Hamilton bridge
The Callender-Hamilton bridge is a prefabricated modular steel truss bridge system patented in 1935 by the New Zealand engineer Archibald Milne Hamilton, predecessor of the Bailey bridge.
Calvert Vaux
Calvert Vaux (1824–1895) was an English-born American architect and landscape designer who, with Frederick Law Olmsted, won the 1858 competition to design New York's Central Park.
Camargo Corrêa
Camargo Corrêa is a Brazilian heavy construction company founded in 1939 and now the infrastructure arm of the Mover holding, known for hydroelectric, transport, and industrial works in Brazil and abroad.
Camelford water pollution incident
The Camelford water pollution incident, also called the Lowermoor incident, was the 1988 contamination of drinking water in North Cornwall with 20 tonnes of aluminum sulfate.
Camino Real de Panama and Camino de Cruces
The Camino Real de Panamá and Camino de Cruces were 16th-century Spanish colonial roads carrying silver across the Isthmus of Panama between its two oceans.
Camp Lejeune water contamination
The Camp Lejeune water contamination was the pollution of drinking water at Marine Corps Base Camp Lejeune, North Carolina, with industrial solvents from the 1950s to the 1980s.
Camp Schwab
Camp Schwab (キャンプ・シュワブ) is a United States Marine Corps base in Nago City, on Okinawa, Japan, named in 1959 for Medal of Honor recipient Albert E. Schwab.
Campus
A campus is the grounds, and often the buildings, of a university, college, or school; the word also covers corporate parks and a self-contained university division.
Canadian Centre for Architecture
The Canadian Centre for Architecture (Centre canadien d'architecture, CCA) is a museum and research institution in Montréal, Quebec, founded in 1979 by Phyllis Lambert to treat architecture as a public concern.
Canadian Dam Association
The Canadian Dam Association (Association canadienne des barrages) is a Canadian not-for-profit association for dam safety, formed in 1997 and publisher of the Dam Safety Guidelines used across Canada.
Canadian Highway Bridge Design Code
The Canadian Highway Bridge Design Code (CHBDC), published as CSA S6 by CSA Group, is Canada's national standard for design and evaluation of highway bridges, with a 2025 thirteenth edition.
Canadian Society for Civil Engineering
The Canadian Society for Civil Engineering (CSCE, Société canadienne de génie civil) is a not-for-profit learned society for civil engineers in Canada, chartered in 1887 and known for its conferences and heritage work.
Canal
A canal, or artificial river, is a man-made waterway built for ships, irrigation, or water supply; the Suez and Panama canals are the most famous examples.
Canal & River Trust
Canal & River Trust is a charity that has cared for about 2,000 miles of canals and rivers in England and Wales since 2012, when it took over British Waterways.
Canal company and authority engineers
The engineer to a canal company or authority was the officeholder formally responsible for a navigation's surveys, design, parliamentary promotion, construction, and, in a later phase, its care and maintenance.
Canal de Aragón y Cataluña
The Canal de Aragón y Cataluña is a major irrigation canal in northeastern Spain serving more than 100,000 hectares in Huesca and Lleida, inaugurated by Alfonso XIII in 1906.