2,617 articles
Mohr–Coulomb failure criterion
The Mohr–Coulomb failure criterion is the most widely used shear strength model in geotechnical engineering and rock mechanics, describing when cohesive-frictional materials such as soil or rock fail, from Coulomb's 1776 envelope.
Mokelumne Aqueduct
The Mokelumne Aqueduct is a system of three large steel pipelines operated by the East Bay Municipal Utility District, carrying water from Pardee Reservoir to serve about 1.4 million people.
Moment distribution method
Moment distribution, the moment distribution method, is an iterative hand technique for analyzing indeterminate beams and frames, developed by Hardy Cross and first published in 1930.
Mont Blanc Tunnel
The Mont Blanc Tunnel (Tunnel du Mont-Blanc, Traforo del Monte Bianco) is an 11.6 km road tunnel beneath Mont Blanc linking Chamonix, France, with Courmayeur, Italy, opened in 1965.
Mont Blanc Tunnel fire
The Mont Blanc Tunnel fire was a 1999 truck fire in the Mont Blanc Tunnel linking France and Italy, killing 39 people and closing the tunnel until 2002.
Mont d'Ambin Base Tunnel
The Mont d'Ambin Base Tunnel, also called the Mont Cenis Base Tunnel, is a 57.5-km twin-tube railway tunnel under construction beneath the Alps between Saint-Jean-de-Maurienne, France, and Italy.
Montague Street Tunnel
The Montague Street Tunnel, also called the Montague Tube, is a pair of subway tubes carrying the R train under the East River between Manhattan and Brooklyn, opened in 1920.
Montech water slope
The Montech water slope (pente d'eau de Montech) is a boat lift on the Canal latéral à la Garonne in France, opened in 1974, where diesel tractors push a barge uphill on a wedge of water.
Monticello Dam
Monticello Dam is a concrete arch dam on Putah Creek in Napa County, California, built by the Bureau of Reclamation from 1953 to 1957 to create Lake Berryessa.
Moogerah Dam
Moogerah Dam is a concrete arch dam on Reynolds Creek near Boonah in south-east Queensland, Australia, completed in 1961; it supplies irrigation water to the Warrill Valley.
Morganza Spillway
The Morganza Spillway is a flood-control structure in Pointe Coupee Parish, Louisiana, diverting Mississippi floodwater into the Atchafalaya Basin; it was opened only in 1973 and 2011.
Morgenstern–Price method
The Morgenstern–Price method is a limit equilibrium method of slices for slope stability analysis, introduced in Géotechnique in 1965, that satisfies both force and moment equilibrium for slip surfaces of any shape.
Morning-glory spillway
A morning-glory spillway, also called a glory hole or bell-mouth spillway, is a funnel-shaped dam spillway where water flows over a circular weir lip, down a shaft, and through a tunnel.
Morris Canal
The Morris Canal was a 19th-century anthracite-coal canal across northern New Jersey, running from Phillipsburg on the Delaware River to Jersey City, and remembered for its inclined planes.
Moscow Canal
The Moscow Canal is a 128 km shipping canal in Russia connecting the Moskva River in Moscow with the Volga River near Dubna, opened in 1937.
Moscow water supply system
The Moscow water supply system, run by Mosvodokanal, delivers drinking water to Moscow from the Moskva and Volga rivers, beginning with the Mytishchi pipeline of 1804.
MOSE
MOSE (Modulo Sperimentale Elettromeccanico) is a system of 78 mobile flood barriers at the Venice Lagoon's three inlets, protecting Venice from tides up to 3 meters since October 2020.
Most SNP
Most SNP, the New Bridge or Bridge of the Slovak National Uprising, is a road bridge across the Danube in Bratislava, Slovakia, opened in 1972.
Mosul Dam (سد الموصل)
Mosul Dam, formerly known as Saddam Dam, is the largest dam in Iraq, on the Tigris River about 60 km northwest of Mosul, and is known for its unstable gypsum foundation.
Mota-Engil
Mota-Engil is a Portuguese construction and infrastructure group headquartered in Porto. Founded in 1946, it works in engineering, concessions, waste management, and mining services across 21 countries.
Mott MacDonald
Mott MacDonald is an employee-owned engineering and development consultancy headquartered in London, with about 20,000 employees, known for the Elizabeth line and Thames Tideway Tunnel.
Mount Bold Reservoir
Mount Bold Reservoir is South Australia's largest reservoir, a 46.4-gigalitre storage on the Onkaparinga River about 45 minutes south of Adelaide, built between 1932 and 1938.
Movable bridge operation and maintenance
Movable bridge operation and maintenance covers the drive trains, controls, operator training, traffic control, and inspections that keep the 831 movable bridges in the 2014 US inventory safe.
Movable railway bridge
A movable railway bridge is a rail bridge whose span swings, rotates, or lifts so boats can pass below, the main types being swing, bascule, and vertical lift.
Moveable bridge
A moveable bridge, also called an opening bridge or drawbridge, has a span that opens to let waterway traffic pass, most often as a bascule, swing, or vertical lift.
Mratinje Dam
Mratinje Dam is a 220 m high concrete arch dam on the Piva River in northwestern Montenegro, built between 1969 and 1976 to impound Piva Lake.
Mullaperiyar Dam (മുല്ലപ്പെരിയാർ അണക്കെട്ട്)
Mullaperiyar Dam (മുല്ലപ്പെരിയാർ അണക്കെട്ട്) is a masonry gravity dam on the Periyar river in Kerala, built 1887 to 1895 and operated by Tamil Nadu under a 999-year lease.
Multi-mode and convertible tunnel boring shields
A multi-mode or convertible tunnel boring shield is a tunnel boring machine that switches between open, EPB, and slurry modes in a single drive through alternating soft ground and rock.
Multi-stage flash distillation
Multi-stage flash distillation (MSF) is a thermal desalination process in which heated seawater flashes into vapor across low-pressure chambers, condensing as freshwater; dominant in the Arabian Gulf since 1960.
Multiple-arch dam
A multiple-arch dam is a concrete buttress dam in which thin arches span between buttresses, developed by John S. Eastwood from 1908 to save concrete.