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Church Hill Tunnel
Church Hill Tunnel was a 3,927-foot railroad tunnel in Richmond, Virginia, built in the 1870s and abandoned after its deadly 1925 collapse entombed a train.
Cincinnati Subway
The Cincinnati Subway is an unfinished rapid transit tunnel in Cincinnati, Ohio, built in the 1920s in the old Miami and Erie Canal bed; no train has ever run through it.
Cistern
A cistern, also called an aljibe, is a waterproof container, usually underground, that stores water from rainfall, a spring, or an aqueduct, unlike a well that draws groundwater.
City Bridge
City Bridge is the name of several bridges, most prominently a Grade I listed stone bridge of 1813 over the River Itchen in Winchester, England.
Ciudad Acuña
Ciudad Acuña, formerly Villa Acuña, is a Mexican city in Coahuila on the Rio Grande across from Del Rio, Texas, recorded at 160,225 inhabitants in the 2020 census.
Civil engineer
A civil engineer is a professional who plans, designs, and supervises construction and maintenance of infrastructure such as roads, bridges, tunnels, dams, and water supply systems, a profession distinct from military engineering since the 1700s.
Civil engineering
Civil engineering is the professional engineering discipline that designs and maintains the built environment, including roads, bridges, dams, airports, pipelines, and water and sewage systems.
Civil engineering and infrastructure repair in New Orleans after Hurricane Katrina
Civil engineering repair in New Orleans after Hurricane Katrina, which struck August 29, 2005, covered fixing breached levees, dewatering the city, and rebuilding flood defenses.
Civil engineering degrees and curricula
A civil engineering degree is a university program training students to design and manage infrastructure, combining math and science prerequisites, core courses, laboratories, and a final design project.
Civil engineering education
Civil engineering education is the formal preparation of engineers who plan, design, and construct infrastructure like roads, bridges, and water systems through accredited degrees, licensure, and early-career experience.
Civil engineering education by country
Civil engineering education by country compares how countries train civil engineers, covering Bologna degree structures, Germany's Diplom-Ingenieur, UK chartered status, and Canada's supervised licensure route.
Civil engineering prizes and awards
Civil engineering prizes and awards are honors from professional institutions like ASCE, ICE, and IStructE, recognizing outstanding projects and careers, with the Telford Medal dating to 1838.
Claerwen
Claerwen Reservoir is held by a 56 m concrete dam in mid Wales, opened by Queen Elizabeth II in 1952 as the largest of the Elan Valley reservoirs feeding Birmingham.
Claiborne Pell Bridge
The Claiborne Pell Bridge, commonly called the Newport Bridge, is a toll suspension bridge carrying Rhode Island Route 138 over Narragansett Bay, connecting Jamestown and Newport.
Clair A. Hill
Clair A. Hill, known as "California's Mr. Water," was an American civil engineer from Redding, California, whose firm merged with CH2M in 1971 to form CH2M Hill.
Clarifier
A clarifier is a large rectangular or circular sedimentation tank in water and wastewater treatment where slowed flow lets suspended solids settle by gravity and floatables rise, removing about 60 percent of solids.
Clark Enterprises
Clark Enterprises is the Bethesda, Maryland holding company of A. James Clark, a University of Maryland-trained civil engineer who built one of the largest privately held US construction companies.
Clark unit hydrograph
The Clark unit hydrograph is a synthetic unit hydrograph method, proposed by C. O. Clark in 1945, that translates rainfall excess along a time-area histogram and routes it through a linear reservoir.
Cleddau Bridge
The Cleddau Bridge is a steel box-girder road bridge carrying the A477 across the river Cleddau in Pembrokeshire, Wales, which collapsed during construction in 1970, killing four men.
Clem7
Clem7, formally the Clem Jones Tunnel, is a tolled road tunnel in Brisbane, Australia, opened in 2010 and named after former lord mayor Clem Jones.
Clifton Suspension Bridge
Clifton Suspension Bridge, also known as Brunel's Clifton Bridge, is a wrought iron chain suspension bridge spanning the Avon Gorge in Bristol, designed by Isambard Kingdom Brunel and opened in 1864.
Cloaca Maxima
The Cloaca Maxima is ancient Rome's great gravity sewer, begun in the 6th century BC to drain the Forum into the Tiber, and still partly in use.
Cloud seeding in the United Arab Emirates
Cloud seeding in the United Arab Emirates is a national weather-modification program run by the National Centre of Meteorology, which has flown salt-based seeding aircraft since 2002.
Coachella Canal
The Coachella Canal is a 123-mile branch of the All-American Canal in southeastern California, built from 1938 to 1948 to irrigate about 78,530 acres of the Coachella Valley.
Coastal Engineering Manual
The Coastal Engineering Manual (CEM) is the United States Army Corps of Engineers' comprehensive manual for coastal engineering, first issued in 2002 as EM 1110-2-1100.
Coastal management
Coastal management, also called coastal defense or coastal protection, directs human activity along coastlines using seawalls, mangrove restoration, and zoning to balance protection, development, and climate hazards.
Cochabamba Water War
The Cochabamba Water War (Guerra del Agua), also called the Bolivian Water War, was a series of protests in Cochabamba, Bolivia, against water privatization and rate increases.
Cody Dock Rolling Bridge
The Cody Dock Rolling Bridge is a hand-powered steel footbridge at Cody Dock in Canning Town, London, completed in 2022, that rolls 180 degrees to let boats pass.
Cofferdam
A cofferdam is a temporary water enclosure pumped dry to allow construction work, used for bridge piers, dam foundations, locks, and shoreline repair, and removed afterward.
Colegio de Ingenieros de Caminos, Canales y Puertos
The Colegio de Ingenieros de Caminos, Canales y Puertos (CICCP) is the Spanish public-law professional association ordering the civil engineering profession, with about 25,000 members and its seat in Madrid.