5,208 articles
Metropolitan Water Reclamation District of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago (MWRD), established in 1889, treats wastewater and manages stormwater in Cook County, Illinois, and reversed the Chicago River in 1900.
Metropolitan Waterworks Authority
The Metropolitan Waterworks Authority (Thai: การประปานครหลวง) is a Thai state enterprise, created by legislative act in 1967, that produces and distributes potable water to Bangkok, Nonthaburi, and Samut Prakan, serving more than 12 million people.
Mettur Dam (மேட்டூர் அணை)
Mettur Dam (மேட்டூர் அணை) is a masonry gravity dam on the Kaveri River at Mettur in Tamil Nadu, India, completed in 1934 to irrigate the Thanjavur delta.
Mews
Mews: British term for stables, coach houses, and servants' quarters behind London town houses, from the royal mews at Charing Cross (hawk cages); now converted narrow-lane dwellings, with 391 original mews recorded in 2015.
Mexico City Metropolitan Cathedral
The Mexico City Metropolitan Cathedral, seat of the Catholic Archdiocese of Mexico, stands on the Zócalo in Mexico City and is considered the largest cathedral in Latin America.
Mexico City water supply system
The Mexico City water supply system delivers water to over 20 million people, relying on wells and the Cutzamala inter-basin transfer while losing about 40% to leaks.
Mexico–United States border wall
The Mexico–United States border wall (barrera México–Estados Unidos) is a series of fences and barriers along the US–Mexico border, begun in the 1990s to curb unauthorized immigration and smuggling.
Mezzanine
A mezzanine, or mezzanine floor, is an intermediate partial level within a building story, open to the level below; building codes count it as part of the story beneath.
MGM Grand Las Vegas
MGM Grand Las Vegas, officially MGM Grand Hotel & Casino, is a hotel-casino resort on the Las Vegas Strip. It opened in December 1993 as the world's largest hotel and casino.
MGM Osaka
MGM Osaka (ＭＧＭ大阪), formerly Osaka IR KK, is the company developing Japan's first casino-centered integrated resort on Yumeshima island in Osaka Bay, led by MGM Resorts and Orix with opening planned around autumn 2030.
Miagao Church
Miagao Church, formally the Church of Santo Tomás de Villanueva, is a Spanish colonial church in Miagao, Iloilo, Philippines, built 1786–1797 and a UNESCO World Heritage Site.
Miasma theory
Miasma theory, or the miasma theory of disease, was the medical doctrine that epidemics are caused by bad air from rotting matter, dominant until germ theory replaced it in the late 1800s.
Michael K. Loose
Michael K. Loose, known as Mike Loose, is a retired US Navy vice admiral and civil engineer who commanded NAVFAC and was elected to the National Academy of Engineering in 2011.
Michael R. Johnson
Michael R. Johnson is an American civil engineer and retired Navy rear admiral who led NAVFAC and spent 17 years overseeing facilities at the University of Arkansas.
Microbial desalination cell
A microbial desalination cell is a bioelectrochemical device in which wastewater bacteria oxidize organic matter, generating current that drives salt ions through membranes, desalinating water without external power. It was first demonstrated in 2009.
Microbially induced calcite precipitation
Microbially induced calcite precipitation (MICP) is a biomineralization method in which urease-producing microbes precipitate calcium carbonate that binds soil grains, seals concrete cracks, and reduces permeability, used in civil engineering for sand strengthening and self-healing concrete.
Microbially induced calcium carbonate precipitation
Microbially induced calcium carbonate precipitation (MICP) is a ground-improvement technique in which urea-hydrolyzing bacteria, chiefly Sporosarcina pasteurii, precipitate calcite between soil grains, binding loose material into a stronger, less permeable solid.
Micropile
A micropile is a small-diameter, drilled and grouted deep foundation element, typically under 12 inches in diameter, used for underpinning, seismic retrofitting, and slope stabilization.
Microplastics
Microplastics are solid, water-insoluble plastic particles, generally smaller than 5 mm, that occur throughout the environment and have been detected in food, air, and both bottled and tap drinking water.
Microtunneling
Microtunneling is a trenchless construction method in which a remotely controlled, laser-guided microtunnel boring machine excavates a bore while product pipe is hydraulically jacked into place behind it.
Middle Bridge
Middle Bridge: name shared by several historic bridges, chiefly Robert Mylne's Grade I listed 1782-84 stone arch over the River Test at Romsey, Hampshire; also bridges in Basel, Mississauga, the Tower of London, and Missouri.
Middle Rio Grande Project
The Middle Rio Grande Project is a U.S. Bureau of Reclamation project in central New Mexico, authorized in 1948 to rehabilitate irrigation works and stabilize the Rio Grande.
Middlesex Canal
The Middlesex Canal was a 27-mile waterway in Massachusetts, built between 1793 and 1803 to connect the Merrimack River near Lowell with Boston, operating until 1853.
Middleton Place
Middleton Place is a National Historic Landmark plantation on the Ashley River near Charleston, South Carolina, home to America's oldest landscaped gardens, begun in 1741, and the seat of the Middleton family.
Mihrab of the Great Mosque of Kairouan
The mihrab of the Great Mosque of Kairouan is the 9th-century prayer niche of Kairouan's congregational mosque in Tunisia, one of the oldest known mihrabs, framed by Mesopotamian lustre tiles.
Mike O'Callaghan–Pat Tillman Memorial Bridge
The Mike O'Callaghan–Pat Tillman Memorial Bridge, also known as the Pat Tillman Bridge, is a concrete arch bridge carrying US Route 93 across the Colorado River near Hoover Dam, opened in 2010.
Milan Cathedral
Milan Cathedral (Duomo di Milano) is the Gothic cathedral and mother church of the Diocese of Milan, begun in 1386 and the largest Gothic church in Italy.
Military base
A military base, also known as a military installation or reservation, is a facility that shelters, supplies, and supports armed forces, from small outposts to installations with airfields and ports.
Millard House
The Millard House, known as La Miniatura, is a 1923 concrete-block residence in Pasadena, California, designed by Frank Lloyd Wright and the first of his four textile-block houses.
Millau Viaduct
The Millau Viaduct is a multi-span cable-stayed road bridge carrying the A75 motorway across the Tarn valley near Millau, France, built between 2001 and 2004.