Four multipurpose dam were constructed during 1948 to 1959-
1- Maithon Dam
2- Panchat Dam
3- Tilaiya Dam
4- Kunar Dam
Dams
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The purpose of the dams that are found in the state of PA are to prevent water from entering another water source or landform. Dams are often manmade, but can be constructed by animals like beavers.
Gravity dams:It is made up of masonry or solid concreteIt can be constructed to any heightLess maintenanceEarth dams:It is made up of soil and gravelIt can be constructed to moderate heightIt is cheaper
There are many gravity dams constructed of compacted earth. High dams are generally concrete. All dams require a spillway to be safe. The spillway must be armored.
The construction of the Glen Canyon Dam formed which body of water?A. Lake Mead B. Grand River C. Canyon Lake D. Lake Powell dams are constructed in a safer place because of the following reasons:*it must not be build in earthquake occurring place.*while moving vehicles,the dam should not fall.*the dams should build very strong.*it is useful for irrigation.
Bridges and dams are built after a coffer dam is constructed to reroute the water. When the structure is complete the coffer dams are removed or destroyed.
Man Made dams are constructed for several reasons. One may construct a dam to balance water height or achieve agricultural irrigation.
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Gravity dams are constructed using large quantities of concrete to resist the force of water. The concrete is typically poured in layers, allowing each layer to cure before adding the next one. The weight of the dam pushes it down and anchors it to the ground, providing stability against the water pressure.
Advantages of dams:1. Dams are constructed based only on safety2. It is used to store water3. It used in hydroelectric power generation4. It is used in irrigation purposes.Disadvantages of dams:1. Requires skilled labour to construct2. Strong abutments is needed.
There are many small big dams are constructed across River Krishna. Main are Almatti and Naagaarjuna reservoirs.