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Athens Township, Bradford County, Pennsylvania
Athens Township is a second-class township in Bradford County, Pennsylvania, formed in 1797 on the New York state line, surrounding the boroughs of Athens, Sayre, and South Waverly.
Atlantic Ocean Road
The Atlantic Ocean Road (Atlanterhavsvegen) is an 8.3 km scenic road in Møre og Romsdal, Norway, crossing eight bridges between Vevang and Kårvåg, opened in 1989.
Atlantropa
Atlantropa, first called Panropa, was a megaproject proposed by Hermann Sörgel from 1927 until his death in 1952 to dam the Mediterranean, generating vast hydroelectricity and new land.
Atmospheric water generator
An atmospheric water generator (AWG) is a device that extracts water vapor from air to make drinking water, by cooling air below its dew point or using desiccants.
Auckland Harbour Bridge
The Auckland Harbour Bridge is a 1,020-meter steel bridge spanning the Waitematā Harbour in Auckland, New Zealand. Opened in 1959, it carries about 170,000 vehicles a day.
Australian Bridge Design Standard AS 5100
AS 5100, titled Bridge design, is the only Australian standard specific to bridges, covering their design, assessment, rehabilitation, and strengthening; it is maintained by Standards Australia committee BD-090.
Automated canal control
Automated canal control is the regulation of gates and pumps in irrigation canals by control algorithms and instrumentation, keeping water levels near target values as demands change.
Automatic meter reading
Automatic meter reading (AMR), also known as advanced meter reading, is the remote collection of consumption data from water, gas, and electric meters via handheld, drive-by, or fixed-network receivers.
Bachy Soletanche
Bachy Soletanche is the trading name of the United Kingdom and Hong Kong subsidiaries of Soletanche Bachy, a French ground engineering group formed by the 1997 merger of Soletanche and Bachy and owned by VINCI.
Bacteriological water analysis
Bacteriological water analysis, also called bacterial water analysis, is the laboratory testing of drinking and recreational water for fecal bacteria such as E. coli to judge safety.
Baglihar Dam
Baglihar Dam, or Baglihar Hydroelectric Power Project, is a 900 MW run-of-the-river dam on the Chenab River in Ramban district, Jammu and Kashmir, commissioned in 2008.
Bagnell Dam
Bagnell Dam, also known as Osage Dam, is a hydroelectric dam on the Osage River in Missouri completed in 1931, creating Lake of the Ozarks.
Bai Ying
Bai Ying (c. 1363–1419) was a Shandong canal foreman who supplied the plan for the 1411 Ming restoration of the Grand Canal, keeping it navigable for over 500 years.
Bailey bridge
A Bailey bridge is a portable, prefabricated truss bridge of pinned steel panels, designed by Sir Donald Bailey in 1943 for military use in the Second World War.
Baker Street tube station
Baker Street tube station, also known as Baker Street Underground station, is a London Underground station in the City of Westminster that opened in 1863.
Bakun Dam
The Bakun Dam, also known as the Bakun Hydroelectric Project, is a 2,520 MW hydroelectric dam on the Rajang River in Sarawak, Malaysia, fully operational since 2014.
Balanced cantilever construction
Balanced cantilever construction is a bridge erection method in which segments are added alternately on opposite sides of a pier to keep the cantilever balanced, typically for spans of 50 to 200 meters.
Balfour Beatty
Balfour Beatty is a British multinational infrastructure group founded by George Balfour and Andrew Beatty in 1909, headquartered in London and working across the UK, US, and Hong Kong.
Baltimore Harbor Tunnel
The Baltimore Harbor Tunnel is a four-lane twin-tube tunnel carrying Interstate 895 under the Patapsco River between Canton and Fairfield in Baltimore, Maryland, opened in November 1957.
Baltimore truss
The Baltimore truss, also called the Petit truss, is a subdivided Pratt truss with sub-diagonals and sub-struts, developed in 1871 by Baltimore and Ohio Railroad engineers for heavy railroad bridges.
Banaue Rice Terraces
The Banaue Rice Terraces (Hagdan-hagdang Palayan ng Banaue) are irrigated rice paddies carved into mountainsides in Ifugao province, northern Luzon, Philippines, part of a UNESCO World Heritage Site.
Band-e Kaisar (بند قیصر)
Band-e Kaisar (Pol-e Kaisar, Bridge of Valerian) is an ancient Roman-built bridge dam across the Karun at Shushtar, Iran, built in the 3rd century AD.
Bandra–Worli Sea Link
The Bandra–Worli Sea Link, officially the Rajiv Gandhi Sea Link, is an 8-lane, 5.6-kilometer bridge over the Arabian Sea connecting Bandra and Worli in Mumbai, opened in 2009.
Bangladesh Bridge Authority (বাংলাদেশ সেতু কর্তৃপক্ষ)
Bangladesh Bridge Authority (বাংলাদেশ সেতু কর্তৃপক্ষ) is the government agency of Bangladesh responsible for bridges, tunnels, toll roads, and elevated expressways, created in 1985 to build the Jamuna Bridge.
Banihal Qazigund Road Tunnel
The Banihal Qazigund Road Tunnel, also called the Navyug Tunnel, is a twin-tube road tunnel opened in 2021 that carries National Highway 44 between Banihal and Qazigund in Jammu and Kashmir.
Bank filtration
Bank filtration, also called riverbank filtration or RBF, is a natural water treatment process where wells draw river water through bank soil and aquifer, removing contaminants.
Banqiao Dam
The Banqiao Dam, built on the Ru River in Henan, China, in 1951 and 1952, failed in August 1975 during Typhoon Nina's record rainfall, killing tens of thousands.
Baray
Baray are the large artificial reservoirs built at Angkor, capital of the Khmer Empire, forming the center of a water network covering over 1,000 km²; the West Baray still holds water.
Bargi Dam
Bargi Dam, formally the Rani Avantibai Sagar Irrigation Project, is a dam on the Narmada River in Jabalpur district, Madhya Pradesh, supplying drinking water, irrigation, and hydropower.
Barmouth Bridge
Barmouth Bridge, also called Barmouth Viaduct or Pont Abermaw, is a largely wooden single-track railway viaduct crossing the Mawddach estuary in Gwynedd, Wales, opened in 1867.