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Sir John Soane's Museum
Sir John Soane's Museum is the London house and museum of architect John Soane at Lincoln's Inn Fields, preserved by Act of Parliament as at his 1837 death.
Sir Leo Hielscher Bridges
The Sir Leo Hielscher Bridges, originally the Gateway Bridge, are twin toll bridges carrying the Gateway Motorway across the Brisbane River in Brisbane, Australia, the first opened in 1986.
Site amplification
Site amplification is the amplification of earthquake ground motion as a function of frequency, produced when the soil-rock column beneath a site filters incoming seismic waves.
Site C dam
The Site C dam, formally the John Horgan Dam, is a BC Hydro hydroelectric dam on the Peace River in northeast British Columbia, generating about 5,100 GWh yearly.
Site engineer
A site engineer is a construction professional based on a building site who sets out the works to design dimensions and supervises quality, safety, and daily execution.
Site plan
A site plan, also called a plot plan or block plan, is a scaled bird's-eye drawing showing a property's legal boundary, structures, setbacks, easements, utilities, and drainage.
Six Abodes of Murugan (ஆறுபடை வீடு)
The Six Abodes of Murugan (ஆறுபடை வீடு, Arupadai Veedu) are six temples of the Hindu god Murugan in Tamil Nadu, India, together forming the principal pilgrimage circuit of Tamil devotion to him.
SK Engineering & Construction
SK Engineering & Construction (SK E&C, Korean: SK에코플랜트, now SK ecoplant) is a South Korean engineering and construction company in the SK Group, founded in 1977.
Skagit River Hydroelectric Project
The Skagit River Hydroelectric Project is a system of three dams, Gorge, Diablo, and Ross, on the upper Skagit River in Washington, owned by Seattle City Light.
Skeleton key
A skeleton key is a key filed down so its bit can pass the wards of a warded lock, often opening many locks of the same type.
Skibo Castle
Skibo Castle, also known as the Skibo Estate, is a Scottish Baronial mansion on the Dornoch Firth in Sutherland, Scotland, rebuilt for Andrew Carnegie around 1900.
Skidmore Owings
Skidmore Owings is not a person but a truncated form of the architecture firm Skidmore, Owings & Merrill, referring to two NAE-elected SOM structural engineers, William Baker and Mark Sarkisian.
Skidmore, Owings & Merrill
Skidmore, Owings & Merrill (SOM) is an American architecture, urban planning, and engineering firm founded in Chicago in 1936, known for Lever House, the Sears Tower, and the Burj Khalifa.
Skye Bridge
The Skye Bridge, also called the Skye Road Bridge, is a road bridge opened in 1995 that carries the A87 from Kyle of Lochalsh to the Isle of Skye, toll-free since 2004.
Skylight
A skylight is a glazed opening in a roof or ceiling that admits daylight from above, admitting over 3 times the light of a vertical window of the same size.
Skyscraper
A skyscraper is a tall, continuously occupiable multi-story building whose steel or concrete frame carries its weight, beginning with Chicago's Home Insurance Building of 1885.
Skyway
A skyway is an enclosed, elevated pedestrian walkway that connects buildings above street level, protecting walkers from weather; the first modern system opened in Minneapolis in 1962.
Slate roof
A slate roof is a roof covering of thin, flat pieces of natural slate nailed in overlapping courses, prized for a service life of over 100 years.
Slateford Aqueduct
The Slateford Aqueduct, also called Slateford viaduct, is an eight-arch masonry aqueduct in Edinburgh, built 1818–1822 to carry the Union Canal over the Water of Leith.
Sliding door
A sliding door is a door that opens by moving horizontally along a track rather than swinging on hinges, saving floor space and enabling wide, glazed openings.
Sliding stability analysis
Sliding stability analysis checks whether a concrete gravity dam has enough shear resistance along a potential failure plane to resist horizontal forces from water pressure and uplift.
Slope deflection method
The slope deflection method is a classical structural analysis method for finding member end moments in indeterminate beams and frames, introduced by George A. Maney in 1915.
Slope stability analysis
Slope stability analysis is the geotechnical engineering method for assessing whether a soil or rock slope will remain stable, by computing a factor of safety against sliding.
Slow sand filter
A slow sand filter is a drinking-water treatment device in which water passes slowly through fine sand, whose biologically active surface layer removes pathogens; first used at Paisley, Scotland, in 1804.
Sludge thickening
Sludge thickening is a sludge treatment step that removes water from wastewater sludge to reduce volume and lower downstream costs, using gravity, dissolved air flotation, centrifuges, or gravity belts.
Sluice
A sluice, also called a knife gate or stopgate, is a channel or gated opening that controls water flow in canals, dams, locks, and flood defenses.
Slurry shield
A slurry shield is a tunnel boring machine that supports the tunnel face with pressurized bentonite slurry, best suited to coarse sand and gravel with high groundwater pressure.
Slurry trench cut-off wall
A slurry trench cut-off wall is a vertical underground barrier built by excavating a bentonite-stabilized trench and filling it with low-permeability material to block groundwater flow and contain contaminants.
Slurry tunnel boring machine
A slurry tunnel boring machine, commonly called a mixshield, is a TBM that supports the tunnel face with pressurized bentonite slurry, chosen where groundwater must be held under tight pressure control.
SM Mall of Asia
SM Mall of Asia is a large shopping mall in Pasay City, Philippines, opened in 2006 on reclaimed Manila Bay land and one of the world's largest malls.