Everything about Acre-foot totally explained
An
acre-foot is a unit of
volume commonly used in the
United States in reference to large-scale water resources, such as
reservoirs,
aqueducts,
canals,
sewer flow capacity, and river flows.
Definition
It is defined by the volume of one
acre of surface area to a depth of one
foot.
Since the area of one acre is defined as 66 by 660 feet (a
chain by a
furlong) then the volume of an acre-foot is exactly 43,560
cubic feet.
Alternatively, this is approximately 325,851.4 U.S.
gallons or 1,233.5 kL (or m³).
Discussion
As a rule of thumb in U.S. water management, one acre-foot is taken to be the planned water usage of a suburban family household, annually. In the desert SouthWest, where water conservation is followed, a typical family uses only about 0.25 acre-feet of water per year.
The acre-foot (or more specifically the time rate unit of
acre-foot per year) has been used historically in the U.S. in many water-management agreements, for example the
Colorado River Compact, which divides 15 million acre-feet per year (586 m³/s) among seven western
U.S. states.
Further Information
Get more info on 'Acre-foot'.
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