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14-683: The dam, completed in 1930, is owned by the Hudson River–Black River Regulating District. It stands 95 feet high, impounds a maximum of 792,000 acre-feet ; the lake has a perimeter of 129 miles (208 km), and an area of 42 square miles (11,000 ha). The hydroelectric plant is named for Elmer West, a builder of the Spier Falls Dam located downstream on the Hudson. At the end of the Wisconsin Glacial Episode

28-655: A U.S. survey foot (exactly ⁠ 1200 / 3937 ⁠   meters since 1893). On December 31, 2022, the National Institute of Standards and Technology , the National Geodetic Survey , and the United States Department of Commerce deprecated use of the US survey foot and recommended conversion to either the meter or the international foot. As a rule of thumb in US water management, one acre-foot

42-821: A building or structure in New York is a stub . You can help Misplaced Pages by expanding it . This article about a dam or floodgate in the United States is a stub . You can help Misplaced Pages by expanding it . Acre-feet The acre-foot is a non- SI unit of volume equal to about 1,233 m commonly used in the United States in reference to large-scale water resources, such as reservoirs , aqueducts , canals , sewer flow capacity, irrigation water, and river flows . An acre-foot equals approximately an eight-lane swimming pool , 82 ft (25 m) long, 52 ft (16 m) wide and 9.8 ft (3 m) deep. As

56-477: A flood that year, delayed completion until March 27, 1930. The cost of the dam was $ 12 million. Residents of the valley were bitterly opposed to the dam. In addition to lawsuits there is a story that a group of witches put a curse on the dam in an attempt to get it to fail. More prosaically, the Fonda, Johnstown and Gloversville Railroad instituted a protracted lawsuit over the flooding of its tracks and finally won

70-495: A glacial moraine blocked the outflow of the Sacandaga River, forming "Glacial Lake Sacandaga". The rising water eventually found an outlet over a small divide at Conklingville. The outlet gradually eroded, draining the lake. The Conklingville dam was proposed to block this outlet, and nearly restore the configuration of the glacial lake. The Sacandaga River was subject to periodic severe floods. A dam had been considered since

84-512: A judgement to $ 1.6 million. The primary purpose of the dam was flood control, and the water level on the lake is still carefully regulated to prevent flooding while maintaining adequate flow downstream on the Hudson. The secondary purpose was power generation. As of 2016 the dam generates 22 Megawatts. The third purpose was recreation. The Great Sacandaga Lake supports boating, fishing, swimming, and water sports. Many summer rentals of homes and boats are available. This article about

98-591: Is approximately equivalent to 1.233 megaliters. Large bodies of water may be measured in cubic kilometers (1,000,000,000 m , or 1000 gigaliter), with 1 million acre-feet approximately equalling 1.233 km . Cubic metre The cubic metre (in Commonwealth English and international spelling as used by the International Bureau of Weights and Measures ) or cubic meter (in American English )

112-410: Is taken to be the planned annual water usage of a suburban family household. In some areas of the desert Southwest, where water conservation is followed and often enforced, a typical family uses only about 0.25 acre-foot per year (310  m /a) of water per year. One acre-foot/year is approximately 119 cu ft/d (3.38 m /d). The acre-foot per year has been used historically in

126-492: Is the unit of volume in the International System of Units (SI). Its symbol is m . It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes , was the stère , still sometimes used for dry measure (for instance, in reference to wood ). Another alternative name, no longer widely used, was the kilolitre . A cubic metre of pure water at

140-521: The 1860s, both for flood control and, later, for power generation. In 1913 the "most disastrous [flood] in history" caused major damage to towns on the Hudson River below the Sacandaga: Albany , Green Island , Rensselaer , Troy , and Watervliet . In 1922 New York established the "Hudson River Regulating District" (now the " Hudson River–Black River Regulating District ") "To regulate the flow of

154-427: The Hudson and Sacandaga Rivers as required by the public welfare including health and safety." The financing was done through a combination of contributions from industries that would use the generated power (95.5%), and from the communities flooded in 1913. The dam was designed by Edward Haynes Sargent. The first bids were received in 1927. The project was projected to be completed in 1929, but various setbacks, including

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168-556: The US in many water-management agreements, for example the Colorado River Compact , which divides 15 million acre-feet per year (19 cubic kilometres per year) among seven western US states. Water reservoir capacities in the US are commonly given in thousands of acre-feet , abbreviated TAF or KAF . In most other countries except the US, the metric system is in common use and water volumes are normally expressed in liter , cubic meter or cubic kilometer . One acre-foot

182-431: The name suggests, an acre-foot is defined as the volume of one acre of surface area to a depth of one foot . Since an acre is defined as a chain by a furlong (i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5  m ). There has been two definitions of the acre-foot (differing by about 0.0006%), using either the international foot (0.3048 m) or

196-589: The temperature of maximum density (3.98 °C) and standard atmospheric pressure (101.325 kPa) has a mass of 1000  kg , or one tonne . At 0 °C, the freezing point of water, a cubic metre of water has slightly less mass, 999.972 kilograms. A cubic metre is sometimes abbreviated to m^3 , M3 , m**3 , cum , m3 , CBM , cbm when superscript characters or markup cannot be used (e.g. in some typewritten documents and postings in Usenet newsgroups). The "cubic metre" symbol

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