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A decametre (International spelling as used by the International Bureau of Weights and Measures and by most English speaking countries, [1] [2] United States spelling dekameter or decameter [3] [4]), symbol dam ("da" for the SI prefix deca-, [1] "m" for the SI unit metre), is a unit of length in the International System of Units (SI) equal to ten metres.
The Laguna Diversion Dam is a rock-filled diversion dam on the Colorado River. It is located 13 miles (21 km) northeast of Winterhaven, CA – Yuma, AZ on Imperial County route S24 . Constructed between 1905 and 1909, the dam was the first dam built on the Colorado River and subsequently ended boat travel to the north.
The word dam can be traced back to Middle English, [1] and before that, from Middle Dutch, as seen in the names of many old cities, [2] such as Amsterdam and Rotterdam. Ancient dams were built in Mesopotamia and the Middle East for water control. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. Egyptians also built dams ...
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The nearly 8100 major dams in the United States in 2006. The National Inventory of Dams defines a major dam as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3).
Ayer Itam Dam; Babagon Dam; Bakun Dam; Batang Ai Dam; Batu Dam; Bekok Dam; Beris Dam; Betotan Dam, Sandakan; Bukit Merah Dam; Chenderoh Dam; Kenyir Dam; Kinta Dam, Perak
The dam was opened by President Theodore Roosevelt on March 18, 1911. [6] Roosevelt Dam, as originally conceived and built, was a symbol of success and a showpiece for the new Reclamation agency. The dam contributed more than any other dam in Arizona to the settlement of Central Arizona and to the development of large-scale irrigation there.
A map symbol or cartographic symbol is a graphical device used to visually represent a real-world feature on a map, working in the same fashion as other forms of symbols. Map symbols may include point markers, lines, regions, continuous fields, or text; these can be designed visually in their shape, size, color, pattern, and other graphic ...