5,208 articles
W. P. Franklin Lock and Dam
The W. P. Franklin Lock and Dam, also called Structure S-79, is a U.S. Army Corps of Engineers navigation lock and dam on the Caloosahatchee River in Lee County, Florida.
Wabash and Erie Canal
The Wabash and Erie Canal was a 468-mile canal in Indiana and Ohio, built between 1832 and 1853, linking Lake Erie at Toledo with the Ohio River at Evansville.
Waddell "A" Truss Bridge
The Waddell "A" Truss Bridge is a pin-connected steel railroad truss patented by engineer J. A. L. Waddell in 1894, its two trusses forming an A shape.
Waddesdon Manor
Waddesdon Manor is a country house in Waddesdon, Buckinghamshire, England, built in the style of a 16th-century French château for Baron Ferdinand de Rothschild to display his art collection.
Wādī Ki‘ām Aqueduct (Lepcis)
Wādī Ki‘ām Aqueduct (L'acquedotto di uadi Caam), Roman aqueduct of Lepcis Magna, Libya, built AD 119–20 by Q. Servilius Candidus, carrying water about 20 km from Wadi Caam to the city's cisterns, baths, and fountains.
Wagner torsion
Wagner torsion is the nonlinear torsional behavior of thin-walled beams with open cross-sections, where inclined longitudinal stresses generate an additional torque, described by Wagner and Pretschner in 1934.
Wainwright Building
The Wainwright Building is a ten-story steel-framed office building in downtown St. Louis, Missouri, built in 1890–91 and designed by Adler & Sullivan for the brewer Ellis Wainwright.
Waldorf Astoria New York
Waldorf Astoria New York, also known as the Waldorf-Astoria, is a landmarked Art Deco luxury hotel on Park Avenue in Midtown Manhattan, opened in 1931 and operated by Hilton.
Walka Water Works
Walka Water Works is a heritage-listed 19th-century water pumping and filtration complex near Maitland, New South Wales, the Lower Hunter's sole water supply from 1887 to 1929.
Walkerton E. coli outbreak
The Walkerton E. coli outbreak, also called the Walkerton tragedy, was a May 2000 waterborne disease outbreak in Walkerton, Ontario, that sickened more than 2,300 and killed seven.
Wall
A wall is a vertical building element that encloses or divides space or carries structural load, ranging from ancient defensive ramparts to thin non-structural office partitions.
Wall stud
A wall stud is a vertical framing member in a building wall that carries structural loads and provides the frame for sheathing, siding, and interior finish.
Walls of Diyarbakır
The Walls of Diyarbakır are black basalt fortifications enclosing the historic center of Diyarbakır in southeastern Turkey, the longest extant pre-modern city walls, part of a UNESCO World Heritage Site since 2015.
Warabandi
Warabandi, meaning "taking turns," is a rotational water-distribution method used in canal irrigation systems of northwestern India and Pakistan, giving each farmer the channel's full flow on a fixed schedule.
Warehouse
A warehouse, also called a storage depot, is a large building where goods are stored in quantity before they are distributed to stores, sold, or used in production.
Warmelo
Warmelo, also Het Warmelo or Kasteel Warmelo, is a historic moated manor in Diepenheim, Overijssel, known for its gardens; Princess Armgard lived there from 1952 to 1971.
Warner Bros. Studios Leavesden
Warner Bros. Studios Leavesden is a film and television studio complex in Leavesden, Hertfordshire, England, converted from a wartime aircraft factory and home to the Harry Potter films.
Warragamba Dam
Warragamba Dam is a water supply dam on the Warragamba River in New South Wales, Australia, completed in 1960 and supplying about 80% of Greater Sydney's drinking water.
Warren truss
The Warren truss is a bridge truss with parallel chords connected by zigzag diagonals forming triangles, patented in 1848 by British engineers James Warren and Willoughby Monzoni.
Wartburg (castle)
The Wartburg is a castle above Eisenach in Thuringia, Germany, built from 1067 as the seat of the Landgraves of Thuringia and later a UNESCO World Heritage Site.
Warwick Castle
Warwick Castle is a medieval castle in Warwick, Warwickshire, England, founded by William the Conqueror in 1068 and operated since 2007 as a heritage attraction by Merlin Entertainments.
Washington Accord (credentials)
The Washington Accord is a 1989 international agreement among engineering accreditation bodies, whose signatories recognize each other's accredited engineering degree programs as substantially equivalent in their own jurisdictions.
Washington Aqueduct
The Washington Aqueduct is a federally owned water supply agency that delivers Potomac River drinking water to about one million people in the Washington, D.C. region.
Washington Award
The Washington Award is an annual American engineering honor, established in 1916 by the Western Society of Engineers and first presented to Herbert Hoover in 1919.
Washington National Cathedral
Washington National Cathedral, officially the Cathedral Church of Saint Peter and Saint Paul, is an Episcopal cathedral in Washington, D.C., built in the Gothic Revival style between 1907 and 1990.
Washington Place
Washington Place, Honolulu, Hawaii: Greek Revival mansion built 1842–1847 by Captain John Dominis, home of Queen Liliʻuokalani until 1917, governor's mansion 1919–2002, now a historic house museum and National Historic Landmark.
Washington Roebling
Washington Augustus Roebling was an American civil engineer who served as chief engineer of the Brooklyn Bridge, completing his father's design despite crippling decompression sickness.
Washington State Capitol
The Washington State Capitol in Olympia is the seat of government of Washington state; its 1928 Legislative Building has the tallest masonry dome in North America, at 287 feet.
Waste
Waste is material a household, business, or institution discards, from everyday garbage to hazardous, radioactive, medical, and industrial residues, which most countries regulate and increasingly recycle.
Waste stabilization pond
Waste stabilization pond (oxidation pond, lagoon): natural wastewater treatment basin using bacteria, algae, sunlight, and sedimentation. Types include anaerobic, facultative, aerated, maturation ponds; low-cost, land-intensive, widely used for pathogen removal and reuse.