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One acre equals 1 ⁄ 640 (0.0015625) square mile, 4,840 square yards, 43,560 square feet, [2] or about 4,047 square metres (0.4047 hectares) (see below).While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based.
As the name suggests, an acre-foot is defined as the volume of one acre of surface area to a depth of one foot.. Since an acre is defined as a chain by a furlong (i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 m 3).
Name Location Volume Maximum Depth notes 1: Lake Superior: Michigan - Minnesota - Ontario - Wisconsin: 9,799,680,000 acre⋅ft (12,088 km 3) 1,332 ft (406 m) Third-largest fresh-water lake in the world by volume
Scale depiction of the 15 largest lakes in the US. The following is a list of the 100 largest lakes of the United States by normal surface area.The top twenty lakes in size are as listed by the National Atlas of the United States, a publication of the United States Department of the Interior.
For instance, if a city has a minimum lot size of 5,000 square feet, only eight full homes can be built on a single acre of land (1 acre = 43,560 square feet). However, if that minimum lot size is ...
The 'perfect acre' [2] is a rectangular area of 43,560 square feet, bounded by sides 660 feet (a furlong) long and 66 feet (a chain) wide (220 yards by 22 yards) or, equivalently, 40 rods by 4 rods. An acre is therefore 160 square rods or 10 square chains. The name perch derives from the Ancient Roman unit, the pertica.
Eleven reservoirs have a storage capacity greater than or equal to 1,000,000 acre-feet (1.2 km 3); all of these except one are in or on drainages that feed into the Central Valley. The largest single reservoir in California is Shasta Lake, with a full volume of more than 4,552,000 acre-feet (5.615 km 3).
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