5,208 articles
Acequias of San Antonio
The Acequias of San Antonio are Spanish colonial irrigation canals built along the San Antonio River in Texas from 1718 onward, serving five Franciscan missions and the town.
Achilleion (Corfu)
The Achilleion (Αχίλλειο) is a neoclassical palace at Gastouri, about 10 km south of Corfu Town, built 1889–1891 for Empress Elisabeth of Austria and now operating as a museum.
ACI 211
ACI 211 is the American Concrete Institute committee for proportioning concrete mixtures and its guides, best known for the 2022 guide Selecting Proportions for Normal-Density and High-Density Concrete.
ACI 318
ACI 318 is the American Concrete Institute's Building Code for Structural Concrete, a US consensus standard first titled ACI 318 in 1941 and adopted by building codes by reference.
ACI 440
ACI 440 is the American Concrete Institute's series of documents on fiber-reinforced polymer reinforcement for concrete, including the 2022 building code for GFRP-reinforced structural concrete and the ACI 440.1R design guide.
Acoustic emission
Acoustic emission is a passive nondestructive testing method in which sensors detect stress waves a material emits under stress, revealing active damage such as crack growth or corrosion, used in bridge and pressure vessel monitoring.
Acqua Claudia
Acqua Claudia is the name of a great Roman aqueduct begun in 38 AD under Caligula, and of a late-Republican residential complex with a mineral spring at Anguillara Sabazia.
Acqua Felice
The Acqua Felice is a papal aqueduct in Rome, built between 1585 and 1587 under Pope Sixtus V, taking its name from his secular name, Felice Peretti.
Acqua Paola
Acqua Paola is a Roman aqueduct restored under Pope Paul V in 1612, known for its monumental terminal fountain on the Janiculum Hill in Rome.
ACS Group (construction company)
ACS Group is a Spanish construction and infrastructure group created in 1997, active worldwide through Turner Construction, Hochtief, CIMIC, and Dragados, with 92% of revenue from international markets.
Activated carbon filtration
Activated carbon filtration is a drinking water treatment process in which water passes through porous carbon that adsorbs dissolved contaminants, including VOCs, taste and odor compounds, and PFAS.
Activated sludge
Activated sludge is a biological wastewater treatment process in which aerated microbial floc converts dissolved material into settleable solids, first described by Ardern and Lockett in 1914.
Ad Deir
Ad Deir (الدير, "the Monastery") is the largest rock-cut monument at Petra, Jordan, a Nabataean facade roughly 47 meters wide, named for its later Byzantine reuse as a Christian chapel.
Adalaj Stepwell
Adalaj Stepwell, also known as Adalaj ni Vav or Rudabai Stepwell, is a five-storey carved stepwell in Adalaj, Gujarat, India, completed in 1499 by Queen Rudabai.
Adaptable housing
Adaptable housing is ordinary housing designed and built so it can be modified later, simply and inexpensively, to meet the needs of occupants whose circumstances change.
Adaptive reuse
Adaptive reuse is the conversion of an existing building to a new function while retaining its physical fabric, used both as a conversion process and a heritage strategy.
Addison Mizner
Addison Cairns Mizner (1872–1933) was an American architect who popularized the Mediterranean Revival style that became the signature of Palm Beach and South Florida in the 1920s.
Adelaide Cottage
Adelaide Cottage is a Grade II listed house in Windsor Home Park, rebuilt in 1831 for Queen Adelaide and home to the Prince and Princess of Wales since 2022.
Adhai Din Ka Jhonpra (अढ़ाई दिन का झोंपड़ा)
Adhai Din Ka Jhonpra (अढ़ाई दिन का झोंपड़ा), also called Dhai Din ka Jhonpra, is an early Sultanate mosque in Ajmer, Rajasthan, built 1192-1213 by Qutb-ud-Din Aibak and Iltutmish over a Chahamana Sanskrit college, with Hindu and Jain spolia.
Adit
An adit is a horizontal, walkable mine entrance driven into a hillside for access, ventilation, and gravity drainage, with only one opening to the surface.
Administration of Rome's water supply
The administration of Rome's water supply was run by a senatorial curator aquarum, established in 11 BC, with a staff of about 700 slaves maintaining the aqueducts.
Adobe construction
Adobe construction builds with sun-dried bricks of earth, water, and organic binder like straw; among the oldest building technologies, it remains in use in dry regions worldwide.
Adrian R. Chamberlain
Adrian R. Chamberlain (1929–2024) was an American civil engineer who served as president of Colorado State University and was elected to the National Academy of Engineering.
Adrian Smith (architect)
Adrian Smith, also known as Adrian D. Smith, is an American architect who designed the Burj Khalifa and the Jeddah Tower, which is planned to exceed 1,000 meters.
Advanced Drainage Systems
Advanced Drainage Systems, Inc. (NYSE: WMS) is an American manufacturer of thermoplastic corrugated pipe for stormwater and onsite wastewater, founded in 1966 and headquartered in Hilliard, Ohio.
Advanced reduction processes
Advanced reduction processes are water-treatment technologies that destroy persistent contaminants such as PFAS by generating short-lived, highly reducing hydrated electrons, usually with UV light and sulfite or iodide.
Advances in Structural Engineering
Advances in Structural Engineering is a peer-reviewed academic journal covering research on civil engineering structures such as bridges, buildings, and offshore platforms, established in 1997 and published by SAGE Publications.
AECOM
AECOM, also known as AECOM Technology Corporation, is an American multinational infrastructure firm founded in 1990 and headquartered in Dallas, Texas, with $16.1 billion in fiscal 2025 revenue.
Aecon Group Inc.
Aecon Group Inc. is a Canadian construction and infrastructure development company headquartered in Toronto; it ranked fifth among Canadian construction companies by turnover in 2024.
Aerial Lift Bridge
The Aerial Lift Bridge, also called the Duluth Aerial Bridge, is a movable vertical lift bridge in Duluth, Minnesota, built in 1905 and converted to a lift bridge in 1930.