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Dams
A barrier constructed across a waterway to control the flow or raise the level of water.
1,255 Questions
How much does it cost to build an enclosed patio?
Many DIY forums have enclosed patio plans online. Also, you can chat with other DIY'ers who are doing the same projects as you to bounce ideas off of. If all else fails, go to magazines or your public library and you may be able to find plans there.
What are the advantages and disadvantages of building Dams?
Advantages: Can produce hydro electric power, acts as flood control, impounds water for drinking and other uses.It also becomes a tourists spot.
Disadvantages: Destroys whole ecosystems, causes heavier silt deposits on the down stream river beds. Poor design can lead to failure and mass flooding along with lose of life below the dam.
How did the grand coulee dam help Washington?
It's power plant provided power to many people during WW11.
-Gabi:)
Why was Sydney's Warragamba Dam in the news in March 2012?
The Warragamba Dam in Sydney Australia's west spilled over on 3 March, 2012. It was the first spill in 14 years and occurred after heavy rains. They were fearing another spill in April that year that would flood the Nepean-Hawkesbury Valley in Sydney's north west. As a result of these events, they plan to raise dam wall 14 meters.
What is a mix and match structure?
stuff like football helmets, hydro-electric dams, airplanes, domed buildings, warehouses, ect.
How is the Three Gorges Dam different from the Glen Canyon Dam or Hoover Dam?
First the Three Gorges Dam is way bigger and second the Three Gorges Dam is located on the Yangtze River. The Yangtze river is used for commercial shipping and the Colorado river is not used for shipping so the Three Gorges Dam has locks on the side for the passing of ships
Where did the Hoover Dam rank in size compared to dams existing in 1930?
it was the biggest when complete
Who owns the grand coulee dam?
Grand Coulee Dam is a gravity dam on the Columbia River in the U.S. state of Washington built to produce hydroelectric power and provide irrigation. It was constructed between 1933 and 1942, originally with two power plants. A third power station was completed in 1974 to increase its energy production. It is the largest electric power-producing facility in the United States[3] and one of the largest concrete structures in the world.[1]
The proposal to build the dam was the focus of a bitter debate during the 1920s between two groups. One wanted to irrigate the ancient Grand Coulee with a gravity canal and the other supported a high dam and pumping scheme. Dam supporters won in 1933, but for fiscal reasons the initial design was for a "low dam" 290 ft (88 m) high which would generate electricity, but not support irrigation. The U.S. Bureau of Reclamation and a consortium of three companies called MWAK (Mason-Walsh-Atkinson Kier Company) began construction that year. After visiting the construction site in August 1934, President Franklin Delano Roosevelt began endorsing the "high dam" design which, at 550 ft (168 m) high, would provide enough electricity to pump water to irrigate the Columbia Basin. The high dam was approved by Congress in 1935 and completed in 1942; the first water over-topped its spillway on June 1 of that year.
Power from the dam fueled the growing industries of the Northwest United States during World War II. Between 1967 and 1974, the Third Powerplant was constructed. The decision to construct the additional facility was influenced by growing energy demand, regulated river flows stipulated in the Columbia River Treaty with Canada and competition with the Soviet Union. Through a series of upgrades and the installation of pump-generators, the dam now supplies four power stations with an installed capacity of 6,809 MW. As the center-piece of the Columbia Basin Project, the dam's reservoir supplies water for the irrigation of 671,000 acres (2,700 km2).
The reservoir is called Franklin Delano Roosevelt Lake, named after the United States President who presided over the authorization and completion of the dam. Creation of the reservoir forced the relocation of over 3,000 people, including Native Americans whose ancestral lands were partially flooded. The dam has also blocked the migration of salmon and other fish upstream to spawn.
*Sorry its so much***
A bear-trap dam is a movable dam in one form consisting of two leaves resting against each other at the top when raised and folding down one over the other when lowered, for deepening shallow parts in a river.
Is there such thing as a landlocked steelhead?
The answer is yes. There is Landlocked Steelhead Trout Fisheries around. Many states have lakes filled with steelhead trouts.
The nagarjuna sagar dam is constructed across which river?
It is built across the Krishna River in Nagarjuna Sagar, Andhra Pradesh, India.
How would Bangladesh be affected by the constructions of dams?
Constructing dams have both merits and demerits. If merits are more, then the consruction should take place
What artifacts are destroyed in building the 3 gorges dam?
The pathways worn into the stone above the river where coolies used to pull boats upriver against strong currents have disappeared forever. Markings in many places recording the river depth in many places. The river rose up to 30 meters or more when in flood stage. The hundreds of steps climbing from the river to cities perched above the flood stage are submerged. Many other artifacts being dug on archiological sites were abandoned. Many cities and farmland were relocated to "modern" cement replacement cities and less fertile mountain farm sites as the originals were lost. An ancient and unique way of life along the river higwy has been forever altered. And three of the most beautiful wild river gorges in the world were submerged forever. It is almost as if the Grand Canyon were damed and filled with a giant lake.
How did the Norris dam take over crops?
The Norris Dam, completed in 1936 as part of the Tennessee Valley Authority (TVA) project, significantly altered the landscape and agricultural practices in the region. The dam created Norris Lake, which flooded a vast area of farmland and disrupted local agriculture. As a result, many farmers were forced to relocate or adapt to the new conditions, leading to changes in crop production and land use in the surrounding areas. Additionally, the TVA promoted new agricultural methods and practices to improve productivity in the remaining arable land.
