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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


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.]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
When completed in 2017, the nearly 40,000 acre-foot (13 billion gallon) reservoir being constructed off the main channel of the Colorado River will help secure water sources for the drought prone Texas region.
Shasta Reservoir: Raising the Shasta Dam on the Sacramento River by 18.5 feet would add 634,000 acre-feet of storage to its existing 4.5 million acre-foot capacity.
Small domestic wells that pump less than 2 acre-feet of water per year are exempt (an acre-foot is enough water to cover an acre of land one foot deep).
If the water keeps coming into the dam next week, it will still be almost half of its capacity with 3.3 million acre-foot of water against the designed capacity of 7.4 million acre-foot.
An acre-foot of water is 325,851 gallons--enough to support a family of four for one year, according to the Central Arizona Project.
General information on each transaction includes the supplier, acquirer, purpose, quantity (in acre-feet), and price (per acre-foot), as well as a brief summary of the transaction.
For example, in 1992, Ronald Griffin and Fred Boadu reported that the value of water used in agriculture, capitalized over 50 yr, was $300-$2,300 per acre-foot (approximately 326,000 gallons) in the Rio Grande Valley of Texas.
What it comes down to is the cost per acre-foot of water generated," says Zammit.
The deal calls for the farmers of the Imperial Valley to sell roughly 1.6 million acre-feet of water over the first 15 years of the Quantification Settlement Agreement to the California Department of Water Resources for $175 per acre-foot. The Metropolitan Water District of Southern California will buy this water at a cost of $250 per acre-foot.
Each acre-foot corresponds to 125,851 gallons, or the amount of water needed to cover an acre of ground to a height of 12 inches.