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The volume of water, 43,560 cubic feet, that will cover an area of one acre to a depth of one foot.


n, pl -feet
(Units) the volume of water that would cover an area of 1 acre to a depth of 1 foot: equivalent to 43 560 cubic feet or 1233.5 cubic metres


a unit of volume of water in irrigation: the amount covering one acre to a depth of one foot, equal to 43,560 cubic feet (1233 cubic meters).
[1900–05, Amer.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acre-foot - the volume of water that would cover 1 acre to a depth of 1 footacre-foot - the volume of water that would cover 1 acre to a depth of 1 foot; 43,560 cubic feet or 1233.5 cubic meters
References in periodicals archive ?
The Long Beach Water Department has stored 13,000 acre-feet in the aquifer for Metropolitan, adding it to local groundwater and having it available for later use.
Taking into account conveyance losses through the San Francisco Bay/Sacramento-San Joaquin Delta of about 20 percent, the option agreements would provide about 100,000 acre-feet for urban Southern California.
Pumping averaged more than 350,000 acre-feet during the peak years in the late 1940s and early 1950s, the report said.
In planning the system, CLWA officials determined that drawing up to 17,000 acre-feet from treated waste water flowing into the Santa Clara River would be the maximum to avoid affecting the water table.
The group alleged that the 41,000 acre-feet of annual water that the CLWA purchased in 1998 should not yet be counted toward the agency's official water supply.
The reservoir was constructed in 1924 with an initial design capacity of 4,300 acre-feet.
Together, these six agreements provide Metropolitan, its member public agencies and the urban region with 187,300 acre-feet of water storage," Bannister said.
An average household uses between one-half to one acre-feet of water per year.
The economic obligations of Fish Springs Ranch to the Tribe in settlement and mitigation of potential impacts of the water importation project of up to 8,000 acre-feet per year are:
One of the California water districts held back nearly 320,000 acre-feet of water from 1992 through 1994.
During dry years the project could yield 150,000 acre-feet that would be pumped out of the aquifer and piped to the aqueduct.
The dam is huge: 710 feet high, 1,560 feet wide and storing 27 million acre-feet of water in Lake Powell, which extends back up the river for 186 miles.