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Big Chute Marine Railway
The Big Chute Marine Railway is a boat lift on the Trent-Severn Waterway near Coldwater, Ontario, carrying vessels out of the water over a granite ridge.
Big Dig
The Big Dig, formally the Central Artery/Tunnel Project, was a Boston highway megaproject that replaced the elevated Central Artery with tunnels, running from 1991 to 2006 at a final cost near $14.6 billion.
Big Dig ceiling collapse
The Big Dig ceiling collapse occurred in Boston's Interstate 90 connector tunnel on July 10, 2006, when falling concrete panels crushed a car and killed one occupant.
Big Hole
The Big Hole is Tunnel No. 41, a roughly two-mile railroad tunnel built in 1925 under Mount Judah at Donner Pass, California, and still the main Sierra crossing.
Big Three (management consultancies)
The Big Three, often abbreviated MBB, are the strategy consulting firms McKinsey & Company, Boston Consulting Group, and Bain & Company, widely regarded as management consulting's most prestigious firms.
Big Tujunga Dam
Big Tujunga Dam is a concrete arch dam on Big Tujunga Creek in Los Angeles County, California, built in 1931 for flood control and groundwater recharge.
Big Well (Kansas)
The Big Well, listed as Greensburg Well, is a hand-dug well in Greensburg, Kansas, dug in 1887 and 1888 and now the centerpiece of the Big Well Museum.
Bin el Ouidane Dam
The Bin el Ouidane Dam (French: barrage de Bin el Ouidane) is a concrete arch dam in Morocco's High Atlas Mountains, commissioned in 1953 for hydropower and irrigation.
Biochemical oxygen demand
Biochemical oxygen demand (BOD), or biological oxygen demand, measures the dissolved oxygen consumed by microorganisms decomposing organic matter in water, typically over five days at 20 °C.
Biological activated carbon
Biological activated carbon (BAC) is a water treatment process combining adsorption onto granular activated carbon with biodegradation by microorganisms, first used practically in 1976 at Rhine River waterworks.
Bioretention
Bioretention is a stormwater management practice using vegetated soil media to capture, filter, and infiltrate runoff from paved surfaces, pioneered in Prince George's County, Maryland, around 1990.
Biosand filter
A biosand filter is a household-scale slow sand filter developed by David Manz at the University of Calgary in the 1990s to treat drinking water in batches.
Biosolids
Biosolids are sewage sludge from municipal wastewater treatment, treated to meet EPA standards under 40 CFR Part 503 and applied to land as fertilizer or soil conditioner.
Bioswale
A bioswale is a vegetated, gently sloped open channel that slows, filters, and treats stormwater runoff and promotes infiltration, a green infrastructure practice used along roads, highways, and parking lots.
Birmingham Corporation Water Department
Birmingham Corporation Water Department, also called Birmingham Corporation Waterworks, was the municipal body supplying water to Birmingham, England, from 1876 until 1974 through the Elan Valley scheme.
Bishop's simplified method of slices
Bishop's simplified method of slices, also known as the Simplified Bishop Method, is a geotechnical limit equilibrium method for computing a slope's factor of safety against circular slip failure.
Black & Veatch
Black & Veatch is an employee-owned American engineering, procurement, consulting, and construction company founded in 1915 and headquartered in Overland Park, Kansas, with about 13,000 employees worldwide.
Blackstone Canal
The Blackstone Canal was a 46-mile waterway built between 1824 and 1828 to link Worcester, Massachusetts, with Providence, Rhode Island; railroads closed it in 1848.
Blackwall Tunnel
The Blackwall Tunnel is a pair of road tunnels under the River Thames in east London, opened in 1897 and linking Poplar with the Greenwich Peninsula.
Blackwater (waste)
Blackwater is the wastewater from toilets, consisting of feces, urine, toilet paper, and flushing water. It carries most of sewage's nitrogen and pathogens and can be treated to recover biogas and nutrients.
Blaney–Criddle method
The Blaney–Criddle method is a temperature-based empirical formula estimating crop evapotranspiration from mean temperature and day length, developed by H. F. Blaney and W. D. Criddle in 1950.
Blåsjø Reservoir
Blåsjø is a reservoir on the Setesdal plateau in southwestern Norway and, with 7.8 TWh of energy content, Norway's largest hydropower reservoir, formed by linking mountain lakes.
Blast vibration and damage control in tunnelling
Blast vibration and damage control in tunnelling is the practice of limiting ground vibration that cracks nearby structures and blast damage to the tunnel's own rock and support.
Blue Mesa Reservoir
Blue Mesa Reservoir is the largest body of water in Colorado, an impoundment of the Gunnison River near Gunnison created by Blue Mesa Dam in 1966.
Blue Plains Advanced Wastewater Treatment Plant
The Blue Plains Advanced Wastewater Treatment Plant is a wastewater treatment plant on the Potomac River in Washington, D.C., serving the District and parts of Maryland and Virginia.
Blue Water Bridge
The Blue Water Bridge is a twin-span international bridge over the St. Clair River connecting Port Huron, Michigan, and Point Edward, Ontario, with spans opened in 1938 and 1997.
Board of Engineers Malaysia
The Board of Engineers Malaysia (Malay: Lembaga Jurutera Malaysia) is a statutory agency under the Ministry of Works, established under the Registration of Engineers Act 1967 to register engineers.
Boardwalk
A boardwalk is a walkway made of wooden boards, usually built along a beach or shore, ranging from simple paths over sand to commercial promenades like Atlantic City's.
Boat lift
A boat lift raises or lowers a boat between two bodies of water at different levels in a water-filled caisson, replacing flights of locks and conserving water.
Boat lift engineering and operation
A boat lift is a canal structure that carries a boat between water levels in a water-filled caisson, using almost no water and beating locks above 40 meters.