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Gate Foys_Lake |
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Foys_Lake |
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Foys_Lake |
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Foys_Lake |
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Foys_Lake |
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Foys_Lake |
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Foys_Lake |
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, not to be confused with a lagoon, that is surrounded by land. Lakes are inland and not part of the ocean, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams, which are usually flowing. However most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers. In some parts of the world there are many lakes because of chaotic drainage patterns left over from the last Ice Age. All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them. Many lakes are artificial and are constructed for industrial or agricultural use, for hydro-electric power generation or domestic water supply, or for aesthetic or recreational purposes.
Foy's lake is situated at Chittagong. It was created at 1924. I have heard about its beauty from my friends. But believe me, I didn't find any beauty there. May be it was hot summer, and all the leaves of the trees are dried. Also the water level of the lake also gone down.
Another stupid thing is, you have to spend 150 taka to enter the lake area. I simply didn't understand what kind of nonsense it is. I'm viewing a lake, and its cost 150 taka? I think i'm a foreigner. From my travel experience I have never found such a high rated entry fees for any tourist place.Anyway, after a great disappointment from the poor beauty(crumb, wastes are visible all over the places) of the Foy's lake, we moved towards the "Sea World", which cost 200 taka each person. There can enjoy many rides of water. There is a virtual sea, but the water was too dirty. People are leaving tissue papers, and other stuffs inside the water. I think the authority doesn't bother to replace the water of this place. Also, from my 2 hours stay at there, I found the virtual sea was open for only 40 minutes. I meant the wave. May the the guys were saving electric power. Also, I found most of the rides are not open yet(though it was 2:00 at afternoon). Since I like water, and I was jumping inside the sea world, It was a bit fun for me. But from my experience, this place shouldn't be listed at your travel book. You can take your family to enjoy the weekend at there. Not for travel. Its just a place like Nandan or Fantasy Kingdom or our Dhaka.
Valley dammed reservoir
A dam constructed in a valley relies on the natural topography to provide most of the basin of the reservoir. Dams are typically located at a narrow part of a valley downstream of a natural basin. The valley sides act as natural walls with the dam located at the narrowest practical point to provide strength and the lowest practical cost of construction. In many reservoir construction projects people have to be moved and re-housed, historical artifacts moved or rare environments relocated. Examples include the temples of Abu Simbel ( which were moved before the construction of the Aswan Dam to create Lake Nasser from the Nile in Egypt ) and the re-location of the village of Capel Celyn during the construction of Llyn Celyn. Construction of a reservoir in a valley will usually necessitate the diversion of the river during part of the build often through a temporary tunnel or by-pass channel. In hilly regions reservoirs are often constructed by enlarging existing lakes. Sometimes in such reservoirs the new top water level exceeds the watershed height on one or more of the feeder streams such as at Llyn Clywedog in Mid Wales. In such cases additional side dams are required to contain the reservoir. Where the topography is poorly suited to a single large reservoir, a number of smaller reservoirs may be constructed in a chain such as in the River Taff valley where the three reservoirs Llwyn-on Reservoir, Cantref Reservoir and Beacons Reservoir form a chain up the valleyBank-side reservoir. Where water is taken from a river of variable quality or quantity, bank-side reservoirs may be constructed to store the water pumped or siphoned from the river. Such reservoirs are usually built partly by excavation and partly by the construction of a complete encircling bund or embankment which may exceed 6 km in circumference. Both the floor of the reservoir and the bund must have an impermeable lining or core, often made of puddled clay. The water stored in such reservoirs may have a residence time of several months during which time normal biological processes are able to substantially reduce many contaminants and almost eliminate any turbidity. The use of bank-side reservoirs also allows a water abstraction to be closed down for extended period at times when the river is unacceptably polluted or when flow conditions are very low due to drought. The London water supply system is one example of the use of bank-side storage for all the water taken from the River Thames
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