5,208 articles
Jal Mahal
Jal Mahal, or Water Palace, is an 18th-century palace of red sandstone in Man Sagar Lake in Jaipur, Rajasthan, India, with four of its five storeys submerged when the lake is full.
Jambukeswarar Temple, Thiruvanaikaval
Jambukeswarar Temple, also called Thiruvanaikoil or Jambukeswaram, is a Shiva temple on Srirangam island near Tiruchirappalli, Tamil Nadu, and one of the five Pancha Bhoota Sthalams.
James B. Coulter
James B. Coulter was an American sanitary engineer and Maryland's Secretary of Natural Resources from 1971 to 1983. He was elected to the National Academy of Engineering in 1988.
James Brindley
James Brindley (1716–1772) was an English civil engineer, the leading canal engineer of the early Industrial Revolution, who built the Bridgewater Canal and about 350 miles of waterways.
James Drake (engineer)
Sir James Drake (1907–1989) was a British civil engineer who, as Lancashire's County Surveyor and Bridgemaster, delivered the Preston Bypass, Britain's first motorway, opened in 1958.
James F. Stahl
James F. Stahl is an American environmental engineer who led the Sanitation Districts of Los Angeles County for 38 years and was elected to the National Academy of Engineering.
James Henry Greathead
James Henry Greathead (1844–1896) was a South African-born British civil engineer whose cylindrical tunnelling shield, first used on the Tower Subway in 1869, made deep-level tunneling through soft ground practical and underpinned the London Underground.
James L. Lammie
James L. Lammie, also known as James Louis Lammie (1931–2022), was an American civil engineer, a West Point graduate and Army colonel who led Parsons Brinckerhoff and oversaw Boston's Central Artery/Tunnel project.
James O. Jirsa
James O. Jirsa is an American structural engineer and professor at the University of Texas at Austin, elected to the National Academy of Engineering in 1988.
James R. Harris
James R. Harris, full name James Robert Harris, is a Denver consulting structural engineer who founded J.R. Harris & Company in 1984 and chaired the ASCE 7 seismic standards committee.
James Renwick Jr.
James Renwick Jr. (1818–1895) was an American architect whose Gothic Revival works include the Smithsonian Castle, St. Patrick's Cathedral in New York, and the Renwick Gallery, the first US building designed as an art museum.
James W. Poirot
James W. Poirot (1931–2011) was an American civil engineer who chaired the engineering firm CH2M Hill for a decade and led an industry-wide quality-management initiative in the 1980s.
Jamuna Bridge
Jamuna Bridge, formally the Bangabandhu Jamuna Multipurpose Bridge, is a 4.8 km combined road and railway bridge over the Jamuna River in Bangladesh, opened in 1998.
Jan Blanken
Jan Blanken Jansz. (1755–1838) was a Dutch hydraulic engineer who became inspector-general of the Dutch water authority and designed the roughly 80 km canal between Amsterdam and Den Helder.
Janbu's method
Janbu's method is a limit-equilibrium procedure of slices for computing the factor of safety of soil or rock slopes, developed by Norwegian engineer Nils Janbu in the 1950s.
Jantar Mantar, Jaipur
Jantar Mantar in Jaipur is an early-18th-century open-air observatory of monumental masonry astronomical instruments built by Sawai Jai Singh II around 1727, a UNESCO World Heritage Site since 2010.
Japan–Korea Undersea Tunnel
The Japan–Korea Undersea Tunnel (日韓トンネル, 한일해저터널) is a proposed road and rail link under the Korea Strait between Busan and Kyushu, judged economically unviable and never begun.
Japanese architecture
Japanese architecture is the building tradition of the Japanese archipelago, characterized by timber construction and joinery without nails, spanning shrines, temples, castles, and tea houses, with modern architects like Kenzō Tange gaining international recognition.
Japanese castle
Japanese castles are fortified structures built in Japan, typically wooden keeps set on massive stone walls and moats, developed during the Sengoku period from 1467 to 1600.
Japanese Highway Bridge Specification
The Specifications for Highway Bridges (Dōrokyō Shihōsho) is Japan's national road bridge design standard, issued by the Japan Road Association and revised most recently in 2017.
Jar test
A jar test is a laboratory batch procedure simulating coagulation, flocculation, and settling of water in stirred containers to find the optimum coagulant dose and pH.
Jayakwadi Dam
Jayakwadi Dam, also known as Jaikwadi or Nath Sagar Dam, is a major dam on the Godavari at Paithan, Maharashtra, the state's largest irrigation project, completed in 1976.
JCT contracts
JCT contracts are standard-form building contracts published by the Joint Contracts Tribunal, formed in 1931, and used in most UK building works alongside the NEC suite.
Jebel Ali desalination plant
The Jebel Ali desalination plant in Dubai is a combined power and desalination complex, certified by Guinness World Records as the world's largest single-site desalination facility.
Jeddah Tower (برج جدة)
Jeddah Tower (برج جدة), formerly Kingdom Tower, is a skyscraper under construction in Jeddah, Saudi Arabia, designed to exceed 1,000 meters and become the world's tallest building.
Jejuri (जेजुरी)
Jejuri is a temple town about 50 kilometers from Pune, Maharashtra, India, the principal center of worship of the Hindu deity Khandoba, famed for its turmeric-throwing Bhandara festival.
Jerónimos Monastery
The Jerónimos Monastery, formally the Royal Monastery of Santa Maria de Belém, is a former Hieronymite monastery in Belém, Lisbon, built from 1501 under King Manuel I.
Jersey barrier
The Jersey barrier, also called a Jersey wall or K-rail, is a rigid concrete traffic barrier developed by New Jersey in the 1950s to separate traffic lanes.
Jet bridge
A jet bridge, also called a jetway, is an enclosed, movable walkway connecting an airport terminal gate to an aircraft door, letting passengers board sheltered from weather and ramp hazards.
Jim D. Wiethorn
Jim D. Wiethorn, also known as Jimmy Don Wiethorn, is an American forensic structural engineer specializing in crane accidents, elected to the National Academy of Engineering in 2025.