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La Diga Nord
La Diga Nord is the Italian name for the northern breakwater of a harbor mouth, notably at Malamocco, Lido, Chioggia, and Ravenna (Cavalcoli, 2250 m), plus alpine dams.
La Diga Sud
La Diga Sud (Italian, "the south dam") names several paired structures: the Venice Lido, Chioggia, and Ravenna south breakwaters and alpine dams at Lago Bianco, Gabiet, and Fontana Bianca, with dates, lengths, and construction details.
La Mancha Negra
La Mancha Negra (Spanish for "the black stain") was a dark, sticky substance that appeared on Caracas, Venezuela highways in 1986, resisted cleanup, and was never explained.
Labyrinth spillway
A labyrinth spillway is an overflow weir folded into a zigzag or arced shape, giving roughly twice the discharge of a straight weir of the same width.
Lac de Serre-Ponçon
Lac de Serre-Ponçon is a large artificial reservoir in the French Alps, built by EDF between 1955 and 1961 and the largest artificial lake in France.
Ladybower Reservoir
Ladybower Reservoir is the largest reservoir in the Peak District, Derbyshire, begun in 1935 and opened by King George VI in 1945 after the villages of Derwent and Ashopton were flooded.
Lærdal Tunnel
The Lærdal Tunnel (Lærdalstunnelen) is a 24,509-meter two-lane road tunnel on the E16 between Lærdal and Aurland, Norway, the longest road tunnel in the world, opened in 2000.
Lagos-Calabar Coastal Highway
The Lagos-Calabar Coastal Highway is a 700-kilometer federally funded expressway under construction in Nigeria from Lagos to Calabar, begun in March 2024 under President Bola Tinubu.
Laing O'Rourke
Laing O'Rourke is a privately owned international engineering and construction company headquartered in Dartford, Kent, formed in 2001 when R O'Rourke & Son acquired John Laing's construction arm.
Lake Aldwell
Lake Aldwell was a reservoir on the Elwha River on Washington's Olympic Peninsula, filled in 1912 and drained in 2012 with the removal of the Elwha Dam.
Lake Almanor
Lake Almanor is a large reservoir in Plumas County, northeastern California, impounded on the North Fork Feather River and owned by Pacific Gas and Electric Company.
Lake Berryessa
Lake Berryessa, also known as Berryessa Reservoir, is a federal reservoir in Napa County, California, formed in 1957 when the Bureau of Reclamation completed Monticello Dam on Putah Creek.
Lake Burragorang
Lake Burragorang is the reservoir formed behind Warragamba Dam, about 65 kilometers west of Sydney, flooded in 1960 and supplying roughly 80 percent of the city's drinking water.
Lake Cachuma
Lake Cachuma is a reservoir formed by Bradbury Dam on the Santa Ynez River in Santa Barbara County, California, about 25 miles northwest of Santa Barbara.
Lake Conroe
Lake Conroe is a 21,000-acre reservoir on the West Fork of the San Jacinto River near Conroe, Texas, completed in 1973 as a backup water supply for Houston.
Lake Havasu
Lake Havasu is a reservoir on the Colorado River behind Parker Dam, on the Arizona–California border, supplying the Colorado River and Central Arizona Project aqueducts.
Lake Kariba
Lake Kariba, a man-made reservoir on the Zambezi River between Zambia and Zimbabwe, created by the Kariba Dam (1956-1959); largest reservoir by volume at about 185 cubic km, 280 km long, 2,130 MW hydropower, major fisheries and tourism, hit by 2024 drought.
Lake Lanier
Lake Lanier, officially Lake Sidney Lanier, is a 38,425-acre reservoir on the Chattahoochee River formed by Buford Dam in 1957 and operated by the U.S. Army Corps of Engineers.
Lake Livingston
Lake Livingston is a reservoir on the Trinity River in East Texas, built and operated by the Trinity River Authority to supply water to Houston.
Lake Martin
Lake Martin is a reservoir on the Tallapoosa River in Alabama, created in 1926 by Alabama Power's Martin Dam and one of the state's principal recreational lakes.
Lake Mead
Lake Mead is the largest reservoir by volume in the United States, created by Hoover Dam on the Colorado River near Las Vegas and supplying water and hydropower to major southwestern cities.
Lake Meredith
Lake Meredith is a reservoir on the Canadian River in the Texas Panhandle, formed by Sanford Dam near Amarillo to supply municipal water to eleven West Texas cities.
Lake Mills (Washington)
Lake Mills was a reservoir on the Elwha River in Olympic National Park, Washington, impounded by the Glines Canyon Dam and drained in autumn 2012.
Lake Mohave
Lake Mohave is a reservoir on the Colorado River, formed by Davis Dam in 1953 on the Arizona–Nevada border and part of Lake Mead National Recreation Area.
Lake Nasser
Lake Nasser is a vast reservoir on the Nile in southern Egypt and northern Sudan, created by the Aswan High Dam and named after Gamal Abdel Nasser.
Lake Norman
Lake Norman is North Carolina's largest man-made lake, a reservoir on the Catawba River near Charlotte created by Duke Power's Cowans Ford Dam between 1959 and 1963.
Lake Oroville
Lake Oroville is a reservoir on the Feather River in Butte County, California, formed by Oroville Dam in 1967 as the principal storage facility of the California State Water Project.
Lake Pedder
Lake Pedder is an impoundment in south-west Tasmania, created in 1972 by damming the Serpentine and Huon rivers, flooding a smaller natural lake of the same name.
Lake Piru
Lake Piru is a reservoir in Ventura County, California, created in 1955 behind Santa Felicia Dam on Piru Creek and operated by United Water Conservation District.
Lake Pontchartrain Causeway
The Lake Pontchartrain Causeway is a pair of parallel toll bridges carrying traffic about 24 miles across Lake Pontchartrain between Metairie and Mandeville, Louisiana, completed in 1969.