2,617 articles
Li Bing (李冰) (Qin)
Li Bing (李冰) was a Qin administrator and water engineer who, as governor of Shu Prefecture in Sichuan, built the damless Dujiangyan irrigation system around 256 BC.
Libby Dam
Libby Dam is a 422-foot concrete gravity dam on the Kootenai River in northwestern Montana, completed in 1975 and operated by the U.S. Army Corps of Engineers.
LifeStraw
LifeStraw is a brand of portable water filters using hollow fiber membrane technology to remove bacteria, parasites, and microplastics, first sold by Denmark-based Vestergaard in 2005.
Lightweight aggregate concrete
Lightweight aggregate concrete is concrete made with porous, low-density aggregate, giving a density of roughly 70 to 120 lb/ft³ versus about 145 for normal concrete.
Lillian C. Borrone
Lillian C. Borrone (born 1945) is an American civil engineer who in 1988 became the first woman in the world to head a major port.
Limescale
Limescale, also known as kettle fur, is the hard, chalky calcium carbonate deposit that forms on heated surfaces like kettles, water heaters, and pipes when hard water is heated.
Limit equilibrium method
The limit equilibrium method is a geotechnical analysis technique that computes a factor of safety for a potential slope failure along an assumed slip surface.
Lincoln Tunnel
The Lincoln Tunnel, also known as the Midtown Hudson Tunnel, is a three-tube vehicular tunnel under the Hudson River, connecting midtown Manhattan with Weehawken, New Jersey.
Line of balance
Line of balance is a graphical scheduling method for repetitive work, such as housing projects and high-rise floors, in which each trade is a sloped line showing its production rate.
Lingqu (灵渠)
Lingqu (灵渠), also called the Ling Canal or Magic Canal, is an ancient canal in Xing'an County, Guangxi, China, completed in 214 BC under Emperor Qinshihuang.
Liquefaction potential index
The liquefaction potential index (LPI) is a geotechnical index, proposed by Iwasaki et al. in 1978, that rates the severity of earthquake-induced soil liquefaction at a site.
List of aqueducts
The list of aqueducts, also known as List of aqueducts in the World, covers notable examples of Roman water-supply channels, navigable canal aqueducts, and modern pipelines.
List of bridge failures
The list of bridge failures, also known as bridge collapses or bridge disasters, documents hundreds of failures per decade, most caused by floods, scour, collisions, and overloading.
List of bridges and tunnels in New York City
The list of bridges and tunnels in New York City covers crossings linking the five boroughs, from the Brooklyn Bridge to 23 movable bridges and four vehicular tunnels.
List of bridges in London
The list of bridges in London catalogs the bridges crossing the River Thames in Greater London, from Hampton Court Bridge to Tower Bridge, plus tunnels and footbridges.
List of Canada–United States border crossings
Canada–United States border crossings: about 120 land ports of entry, 31 rail crossings, and 11 ferry routes along the 5,525-mile border, with Detroit–Windsor and Buffalo–Niagara Falls the busiest and Gordie Howe the newest bridge.
List of cleanest cities in India
The list of cleanest cities in India ranks cities by the annual Swachh Survekshan survey, run since 2016; Mysuru won first, and Indore topped seven editions.
List of covered bridges in Alabama
The list of covered bridges in Alabama covers the state's 11 surviving historic covered bridges, built from the early 1800s to the mid-1930s, five of them on the National Register.
List of dams and reservoirs
The list of dams and reservoirs is a worldwide overview of notable dams, covering the ICOLD's 62,000-plus large dams, record holders like Three Gorges, and dam removals.
List of dams and reservoirs in Canada
The list of dams and reservoirs in Canada covers more than 16,000 dams, about 1,157 large dams, concentrated in Quebec, Ontario, and British Columbia, serving hydropower, flood control, and recreation.
List of dams and reservoirs in India
The list of dams and reservoirs in India covers the country's 6,628 large dams, third most in the world, built for irrigation, hydropower, drinking water, and flood control.
List of dams and reservoirs in Pakistan
The list of dams and reservoirs in Pakistan covers structures on the Indus Basin rivers, led by Mangla and Tarbela, the two reservoirs allowed under the Indus Waters Treaty.
List of dams and reservoirs in Pennsylvania
The list of dams and reservoirs in Pennsylvania covers the state's thousands of dams, including 22 federal navigation locks and dams on the Allegheny, Monongahela, and Ohio rivers.
List of dams and reservoirs in the United States
The list of dams and reservoirs in the United States covers more than 92,000 dams, including Hoover Dam and Grand Coulee Dam, their condition, and repair costs.
List of dams in the Columbia River watershed
The list of dams in the Columbia River watershed covers about 150 hydroelectric projects, including 19 dams on the main stems of the Columbia and Snake rivers.
List of highest bridges
The list of highest bridges ranks the world's bridges by deck height; the record holder is the Huajiang Grand Canyon Bridge in China at 626 meters.
List of long tunnels by type
The list of long tunnels by type ranks leading tunnels in each category, from the 57 km Gotthard Base Tunnel to 169 km water-supply conduits in New York.
List of longest cable-stayed bridge spans
A ranking of cable-stayed bridges by main span, led by China's Changtai Yangtze River Bridge at 1,208 m, which broke the Russky Island Bridge's 2012 record in 2025.
List of longest suspension bridge spans
The list of longest suspension bridge spans, also called the list of largest suspension bridges, ranks bridges by main span; Turkey's 1915 Çanakkale Bridge leads at 2,023 m since 2022.
List of tallest bridges
The list of tallest bridges ranks bridges by structural height; the Millau Viaduct in France leads, while the Huajiang Grand Canyon Bridge in China has the highest deck.