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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 ...
The Aswan Dam, or Aswan High Dam, is one of the world's largest embankment dams, which was built across the Nile in Aswan, Egypt, between 1960 and 1970. When it was completed, it was the tallest earthen dam in the world, surpassing the Chatuge Dam in the United States. [ 2 ]
By general definition, a dam is a barrier that impounds water or underground streams, hence tailings dams are relegated to a separate list. Data on volume of structure is not as easily available or reliable as data on dam height and reservoir volume.
For dam construction, two cofferdams are usually built, one upstream and one downstream of the proposed dam, after an alternative diversion tunnel or channel has been provided for the river flow to bypass the foundation area of the dam. These cofferdams are typically a conventional embankment dam of both earth- and rock-fill, but concrete or ...
The Kalabagh Dam (Urdu: کالا باغ ڈيم) is a proposed hydroelectric dam on the Indus River at Kalabagh in the Mianwali District of Punjab, Pakistan. The dam, first proposed in 1950s, has been intensely debated along ethnic and regional lines for several decades. [1] If constructed, the dam could generate 3,600 megawatts(MW) of electricity.
The completed Gordon Dam was the only dam built on the Gordon River, despite the support of Tasmanian politicians such as Eric Reece, Robin Gray, and others to build the Franklin Dam further downstream. The construction of Gordon Dam resulted in some flooding of the connected Lake Pedder as planned.
The Mongols also built arch dams in modern-day Iran. Their earliest was the Kebar Dam built around 1300, which was 26 m (85 ft) high and 55 m (180 ft) long, and had a radius of 35 m (115 ft). Their second dam was built around 1350 and is called the Kurit Dam. After 4 m (13 ft) was added to the dam in 1850, it became 64 m (210 ft) tall and ...
The detention dam design must take into account the probability of overtopping occurring and be designed accordingly. Detention dams built to restrict flow rate regulate the amount water released into channels. [2] Detentions dams used to replenishment the subsurface water or groundwater hold surface runoff to allow the ground to absorb the ...