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Early road and mountain-pass tunnels
Early road and mountain-pass tunnels are hand-cut road tunnels such as the Buco di Viso of 1478, the Urnerloch of 1708, and Reigate Tunnel of 1823.
Early skyscrapers
Early skyscrapers were tall commercial buildings erected in American cities, especially Chicago and New York, from the mid-1880s onward, using metal skeleton frames and elevators, culminating in the 1913 Woolworth Building.
Earth lodge
An earth lodge is a circular, dome-shaped dwelling with a timber frame covered in earth, built by Plains farming tribes such as the Mandan and Pawnee.
Earth pressure balance shield
An earth pressure balance (EPB) shield, or EPB shield, is a tunnelling machine that supports the tunnel face with its own excavated soil, conditioned with additives and pressurized.
Earth pressure balance tunnel boring machine
An earth pressure balance (EPB) tunnel boring machine supports the tunnel face with pressurized excavated soil, widely used in urban soft-ground tunnelling to limit settlement.
Earth shelter
An earth shelter is a building insulated with soil heaped against its walls or covering its roof, a technique revived by the 1970s energy crisis.
Earth-fill dam
An earth-fill dam is an embankment dam built by compacting successive layers of earth, with an impervious central core and more permeable material on either side.
Earthquake engineering
Earthquake engineering, also called seismic engineering, is the civil engineering field covering seismic design of buildings and bridges, retrofit of existing structures, and ground motion hazard evaluation.
Earthship
An Earthship is a passive solar, earth-sheltered dwelling originated by Taos, New Mexico architect Michael Reynolds in the 1970s, built of rammed-earth-filled tires and designed to supply its own heating, electricity, water, and food.
East Bay Municipal Utility District
The East Bay Municipal Utility District (EBMUD) is a publicly owned utility formed in 1923, serving 1.5 million water customers in the East Bay from the Mokelumne River.
East Flood Canal
The East Flood Canal (Banjir Kanal Timur) is a 23.5-kilometer flood-control canal in eastern and northern Jakarta, Indonesia, built to divert floodwater from rivers east of the city to the Java Sea.
East Side Access
East Side Access, the MTA's subway extension for the Long Island Rail Road, connects Queens to the new Grand Central Madison terminal beneath Grand Central, opened in 2023.
East Side Big Pipe
The East Side Big Pipe is a combined sewer overflow storage tunnel on Portland, Oregon's east riverbank, finished in 2011 as the city's largest sewer project.
Eastern span replacement of the San Francisco–Oakland Bay Bridge
The eastern span replacement of the San Francisco–Oakland Bay Bridge replaced the seismically vulnerable eastern half with a new skyway and self-anchored suspension bridge, opened in 2013.
Eastman tunnel
The Eastman tunnel, or Hennepin Island tunnel, was a tailrace tunnel at St. Anthony Falls in Minneapolis whose collapse in 1869 nearly destroyed the falls.
Eastnor Castle
Eastnor Castle, near Ledbury, Herefordshire, is a Grade I listed neo-Norman country house built 1811–c1820 by Robert Smirke for the 1st Earl Somers, home of the Hervey-Bathurst family, set in a 5,000-acre estate with Grade II registered park.
Eaton Hall, Cheshire
Eaton Hall, the Cheshire country house of the Grosvenor family, Dukes of Westminster, has had four successive houses since 1675; the present one dates from 1971.
Eau de Paris
Eau de Paris is the public water company of the City of Paris, serving about 3 million users and operating the service since January 2010.
Eaves
Eaves are the edges of a roof that overhang a building's exterior walls, moving runoff clear of the siding and shading windows; the sloped gable edges are the rake.
Ebenezer Howard
Ebenezer Howard (1850–1928) was a British shorthand-writer and reformer who founded the garden city movement through his 1898 book To-morrow, influencing the new towns of Letchworth and Welwyn.
Eberbach Abbey
Eberbach Abbey (Kloster Eberbach) is a former Cistercian monastery near Eltville am Rhein in the Rheingau, Germany, founded in 1136 by monks from Clairvaux and dissolved in 1803.
Eccentrically braced frame
An eccentrically braced frame (EBF) is a steel seismic-force-resisting system in which braces connect to a beam off-center, creating a short link that yields to dissipate earthquake energy.
École des Ponts ParisTech
École des Ponts ParisTech, officially École nationale des ponts et chaussées (ENPC), is a French grande école founded in 1747 to train state engineers for bridges and roads.
Ecological effects of dam removal
Dam removal sets off sediment release, channel recovery, fish recolonization, and vegetation growth on former reservoir beds, as seen at the Elwha and Klamath rivers.
Ecological sanitation
Ecological sanitation, or EcoSan, is a family of sanitation methods that treat human excreta as a resource rather than waste, recycling its nutrients as fertilizer, compost, or biogas.
Economics, law and policy of dam removal
The economics, law and policy of dam removal covers who pays to dismantle a dam, who bears liability, and removal versus repair, with over 2,000 US dams removed since 1912.
Eddystone Lighthouse
Eddystone Lighthouse is an active Trinity House lighthouse on the Eddystone Rocks, 14 miles south of Plymouth, England. The current tower, opened in 1882, is the fourth on the reef since 1698.
Edersee Dam
The Edersee Dam (Edertalsperre) is a curved masonry gravity dam on the Eder river in Hesse, Germany, built 1908 to 1914 to feed the Mittelland Canal.
EDGE certification
EDGE certification, short for Excellence in Design for Greater Efficiencies, is a green building system created by the IFC that certifies buildings saving 20 percent in energy, water, and materials.
Edifício Copan
Edifício Copan is a large curved residential building in central São Paulo, Brazil, designed by Oscar Niemeyer in 1951 and completed in 1966, with about 5,000 residents.