One of the mysteries of the English language finally explained.
A unit of volume equal to the volume of a sheet of water one acre (0.405 hectare) in area and one foot (30.48 cm) in depth; 43,560 cubic feet (1233.5 cu m).
- ‘In 1986, irrigated pasture used about 5.3 million acre-feet of water - as much as all 27 million people in the state consumed, including for swimming pools and lawns…’
- ‘Dams less than 10 feet in height and having a storage capacity of not more than 50 acre-feet of water.’
- ‘About 27 million acre-feet of water (8.5 trillion gallons, to be somewhat more precise), backed up behind 580-foot Glen Canyon Dam.’
- ‘At $5 to $15 for an acre-foot (enough water to cover an acre of ground with a foot of water), farmers are able to grow water-intensive crops such as alfalfa, cotton, and rice.’
- ‘When the dam broke on June 8, 1964, it spilled sixteen thousand acre-feet of water, killed thirty-two people, and caused an estimated $62 million in property damage.’
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