2,617 articles
List of tallest structures in the United States
The list of tallest structures in the United States is led by guyed broadcast masts in North Dakota reaching about 628 m, far taller than One World Trade Center.
List of toll roads
The list of toll roads, or list of turnpikes, surveys notable toll roads and tolling systems by region, covering tolls, vignettes, and collection methods worldwide.
List of tunnels in the United States
A list of the tunnels in the United States, from mountain highway bores to immersed-tube harbor crossings, with construction methods and notable landmarks like Boston's Big Dig.
List of water supply and sanitation by country
The list of water supply and sanitation by country compiles household access figures from the WHO/UNICEF Joint Monitoring Programme, whose 2024 estimates cover safely managed drinking water for 160 countries.
Listed bridges in Denmark
Listed bridges in Denmark are bridges protected as built heritage under the Danish building protection act, recorded as 'Fredet' in the FBB register run by Slots- og Kulturstyrelsen.
Little Goose Dam
Little Goose Dam is a run-of-river hydroelectric dam and navigation lock on the lower Snake River in Washington, operated by the U.S. Army Corps of Engineers.
Liverpool Corporation Waterworks
Liverpool Corporation Waterworks was Liverpool's municipal water undertaking from 1847, which built the Rivington reservoirs and the Vyrnwy dam, Britain's first large masonry dam, completed in 1888.
Living root bridges
Living root bridges (Khasi: Jingkieng Jri) are footbridges grown over decades from the aerial roots of rubber fig trees by indigenous Khasi and Jaintia communities in Meghalaya, northeastern India.
Living shoreline
A living shoreline is a shoreline stabilization method using natural materials such as plants, sand, or rock, often with oyster reefs or sills, to control erosion along bays and estuaries.
Living shorelines
A living shoreline is a shoreline stabilization practice that controls erosion with native marsh vegetation, sand, and oyster reefs instead of hard bulkheads and seawalls.
Llyn Celyn
Llyn Celyn, also known as Tryweryn Reservoir, is a reservoir in Gwynedd, Wales, built by Liverpool between 1960 and 1965, flooding the village of Capel Celyn.
Load rating
Load rating is the engineering process of determining a bridge's safe load-carrying capacity, required federally for US highway bridges and driving load posting and permit decisions.
Local board of health
A local board of health was a British local authority created under the Public Health Act 1848, with powers to build sewers, supply water, and appoint a medical officer of health.
Lochinvar
Lochinvar is a freshwater loch in Kirkcudbrightshire, Scotland, about 3.5 miles from St John's Town of Dalry, converted into an impounding reservoir for public water supply in the 1960s.
Lock (water navigation)
A lock, also called a ship lock or navigation lock, is an enclosed chamber with gates that raises or lowers boats between stretches of water at different levels.
Lock and Dam No. 1
Lock and Dam No. 1, also called the Ford Dam, is a lock and hydroelectric dam on the Mississippi River between Minneapolis and St. Paul, completed in 1917.
Lock and Dam No. 1 (Mississippi River)
Lock and Dam No. 1 is a twin-chamber lock and dam on the Mississippi River in Minneapolis, Minnesota, operated by the Army Corps of Engineers and completed in 1917.
Lock and Dam No. 19
Lock and Dam No. 19, also known as the Keokuk Dam, is a navigation lock and hydroelectric dam on the Mississippi River at Keokuk, Iowa, privately built in 1913.
Lock gates and operating mechanisms
Lock gates and operating mechanisms are the gates, valves, and drive machinery that close a navigation lock's chamber and let water in and out, moving vessels between water levels.
Lock-and-dam navigation works
A lock-and-dam navigation work pairs a dam that maintains a minimum-depth pool with locks that lift or lower vessels, turning a free-flowing river into a staircase of navigable pools.
Lockport (town), New York
Lockport is a town in Niagara County, New York, established in 1824 from parts of Cambria and Royalton, named for the Erie Canal locks ascending the Niagara Escarpment.
Lockport, New York
Lockport, New York, is a city in Niagara County named for the Flight of Five Erie Canal locks that lift boats about 60 feet up the Niagara Escarpment.
Loddon Bridge disaster
The Loddon Bridge disaster was the collapse of falsework during construction of the A329 viaduct over the River Loddon at Woodley, Berkshire, on 24 October 1972, killing three workers and injuring ten.
Lokka Reservoir
Lokka Reservoir (Lokan tekojärvi) is a man-made lake in Sodankylä, Finnish Lapland, created in 1967 by damming the Luiro River. It is one of the largest in the European Union.
Lomba do Sabao
Lomba do Sabão (Lomba do Sabao) is a Porto Alegre–Viamão locality in Rio Grande do Sul, Brazil, known for its 1940s-era, 11-meter decommissioned water-supply dam in Parque Saint'Hilaire, now slated for CAF-funded requalification.
London Bridge
London Bridge is a road bridge over the River Thames in London, connecting the City of London with Southwark; the current concrete bridge opened in 1973.
London Bridge (Lake Havasu City)
London Bridge is a bridge in Lake Havasu City, Arizona, whose granite facing comes from the 1831 London Bridge that once spanned the River Thames in London.
London Museum of Water & Steam
The London Museum of Water & Steam, formerly the Kew Bridge Steam Museum, is an industrial museum in Brentford, London, housing Victorian steam water-pumping engines.
London Power Tunnels
London Power Tunnels is a two-phase National Grid program of deep-bore electricity cable tunnels beneath London: 32 km in north London built between 2010 and 2018, and 32 km more in south London completing in 2028.
London sewer system
The London sewer system, or London sewers, drains London's wastewater through a network built by Joseph Bazalgette for the Metropolitan Board of Works between 1859 and 1875.