2,617 articles
Herrenknecht
Herrenknecht AG is a German family-owned company in Schwanau, Baden-Württemberg, founded by Martin Herrenknecht in 1977, that builds tunnel boring machines; it holds an estimated 19 percent share of the global TBM market.
Hesco bastion
The Hesco bastion, formally the Concertainer, is a foldable steel-mesh barrier filled with soil or sand, used for flood control, erosion control, and military fortification.
High Island Reservoir (万宜水库)
High Island Reservoir (万宜水库) is Hong Kong's largest impounding reservoir, holding 281 million cubic meters of water and formed by damming the Kwun Mun Channel in Sai Kung; its East Dam is a celebrated geological site.
High Level Bridge, River Tyne
The High Level Bridge is a road and railway bridge over the River Tyne between Newcastle and Gateshead, opened in 1849 and designed by Robert Stephenson.
High-damping rubber bearing
A high-damping rubber bearing is a seismic isolation device made of rubber and steel layers, with the rubber formulated to dissipate earthquake energy without separate dampers.
High-performance concrete
High-performance concrete (HPC) is concrete meeting special performance requirements like high strength or low permeability, usually through a reduced water-to-cement ratio and materials such as silica fume.
Highline Canal
The Highline Canal, often styled High Line Canal, is a 71-mile irrigation canal in the Denver, Colorado area, built 1879–1883 and now becoming a regional trail.
Hinkley groundwater contamination
Hinkley groundwater contamination is a plume of hexavalent chromium beneath Hinkley, California, caused by PG&E discharging cooling tower wastewater into unlined ponds from 1952 to 1972.
Hintze Ribeiro Bridge collapse
The Hintze Ribeiro Bridge collapse, known as the Entre-os-Rios disaster, killed all 59 people on a bridge over Portugal's Douro River on 4 March 2001.
Hinze Dam
Hinze Dam is an earth and rock-fill embankment dam on the Nerang River in South East Queensland, Australia, built in 1976 as the Gold Coast's main drinking water supply.
Hirakud Dam
Hirakud Dam is a dam across the Mahanadi river near Sambalpur, Odisha, India, commissioned in 1957 as one of independent India's earliest multi-purpose river valley projects.
Hiraya Water Corporation
Hiraya Water Corporation, formerly PrimeWater Infrastructure Corporation, is a Philippine water and wastewater provider serving over 1.7 million households through joint ventures with about 75 water districts.
Historic American Engineering Record
The Historic American Engineering Record (HAER) is a National Park Service program founded in 1969 that documents historic engineering and industrial sites through drawings, photographs, and written reports.
Historic bridge trusts and bridgemasters
Historic bridge trusts and bridgemasters were the endowed bodies and local officers English towns used to fund bridge upkeep before modern highway authorities, under the Bridges Acts of 1530 and 1670.
Historic Civil Engineering Landmarks program
The Historic Civil Engineering Landmarks program of the American Society of Civil Engineers has recognized more than 280 projects, including the Golden Gate Bridge and Hoover Dam, since 1966.
Historic tunnels by period and region
Historic tunnels by period and region is an index of notable surviving tunnels built before 1900, organized by era and country, from Hezekiah's Tunnel to the Simplon.
History of bridges
The history of bridges tracks how bridge building advanced from timber and stone to iron, steel, and reinforced concrete, from simple felled trees to long suspension spans.
History of civil engineering education
The history of civil engineering education covers the shift from apprenticeship and military schools to universities, with the first civil engineering degree awarded by Rensselaer Polytechnic Institute in 1835.
History of desalination
The history of desalination covers removing salt from seawater, from Aristotle's evaporation experiments and the 1881 Malta plant to reverse osmosis, now in over 20,000 plants worldwide.
History of immersed tube tunnelling
The history of immersed tube tunnelling runs from Wyatt's 1810 brick cylinders through the 1890s Shirley Gut siphon and the 1910 Detroit River Tunnel to two traditions, the American steel shell and the European concrete box.
History of sewerage and sanitation
The history of sewerage and sanitation traces urban drainage from Mesopotamia and Rome's Cloaca Maxima through a medieval decline to 19th-century reforms like Bazalgette's London sewers.
History of the British canal system
The history of the British canal system covers the building, decline, and leisure revival of Britain's man-made waterways, from Roman-era works to a 4,250-mile peak network.
History of the London Underground
The history of the London Underground runs from the Metropolitan Railway of 1863, the world's first underground railway, through the 1890 electric tube to today's 11-line network.
History of the Panama Canal
The history of the Panama Canal spans a failed French attempt in the 1880s, American construction of a lock canal opened in 1914, and Panamanian control since 1999.
History of the pound lock
The history of the pound lock traces the two-gated canal lock from its 1373 debut at Vreeswijk in the Netherlands back to a Chinese chamber lock of 984.
History of the shield tunnelling method
The history of the shield tunnelling method begins with Marc Isambard Brunel, who patented the first tunnelling shield in 1818 and used it to build the Thames Tunnel.
History of tunnel boring machines
The history of tunnel boring machines spans Marc Brunel's 1818 shield for the Thames Tunnel and James Robbins' first modern TBM, built for South Dakota's Oahe Dam in 1952.
History of water supply and sanitation
The history of water supply and sanitation traces how societies delivered clean water and removed waste, from Neolithic wells and Roman aqueducts to today's piped networks.
Hochtief
Hochtief is a German construction and infrastructure company headquartered in Essen. Founded in 1873, it has been majority-owned by Spain's ACS since 2011 and operates through Turner in the US and CIMIC in Australia.
Hohokam canal systems
The Hohokam canal systems were hand-dug prehistoric irrigation canals in southern Arizona, diverting water from the Salt and Gila rivers onto more than 100,000 acres near Phoenix.