Acre foot

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, and river flows. It is defined by the volume of water necessary to cover one acre of surface area to a depth of one foot. It is equal to exactly 43,560 cubic feet, or to nearly 325,851 U.S. gallons, or exactly 1233.48183754752 cubic meters. As a rule of thumb in U.S. water management, one acre foot is taken to be roughly the amount of water used annually by a family of four. 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. Reservoir capacities in the U.S. are typically given in acre feet.

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Volume: Volume, also called capacity, is a quantification of how much space an object occupies. The SI unit for volume is the cubic metre. American spelling is cubic meter....

United States: :For other uses, see US (disambiguation), USA (disambiguation), and United States (disambiguation)....

Reservoir: Generally, a reservoir is something that can hold matter or energy....

Acre foot related Images and Photos (experimental)

Crones Foot	The Foot Washer	Best Foot Forward (DVD)	28 Foot Speedster
The Foot Fist Way	48 Foot and 45 Foot Twin Screw Cruisers	CSI 'Foot Tag' T-Shirt	My Left Foot
Acre as it was When Lost	One Foot in the Grave: Season 5 (DVD)	One Foot in the Grave: Season 6 (DVD)	ONE FOOT IN THE GRAVE: SEASON 3 (DVD)