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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).
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.
The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.
The only exceptions to this rule are special requirements for measurement in feet in mineral surveys and townsite surveys. [13] Linear Measurement 1 Chain = 100 links or 66 feet 1 Mile = 80 chains or 5,280 feet. Area Measurement 1 Acre = 10 square chains or 43,560 square feet 1 square mile = 640 acres
18,700,000 acre⋅ft (23.1 km 3) 220 ft (67 m) man-made 18: Lake Chelan: Washington: 15,800,000 acre⋅ft (19.5 km 3) 1,486 ft (453 m) 19: Lake of the Woods: Ontario - Minnesota - Manitoba: 15,700,000 acre⋅ft (19.4 km 3) 210 ft (64 m) 20: Lake Powell: Utah - Arizona: 15,500,000 acre⋅ft (19.1 km 3) [3] 583 ft (178 m) man-made 21: Great Salt ...
The state saw 4.1 million acre-feet of managed groundwater recharge in the water year ending in September, and an 8.7 million acre-feet increase in groundwater storage, California’s Department ...
A customary unit of volume defined as the volume of one acre of surface area to a depth of one foot, commonly used in the United States about large-scale water or soil resources. One acre-foot is equal to 43,560 cubic feet (1,233 m 3). adjuvant A chemical compound added to a pesticide formulation to increase its efficacy or safety. [2] aerial ...
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