Flood level markers on the Yangtze River, China
Posted by: Groundspeak Premium Member Pagenz
N 30° 54.335 E 110° 53.574
49R E 489765 N 3419142
Quick Description: The Three Gorge Dam aims to rise the water level to 175m.
Location: China
Date Posted: 10/28/2008 5:23:24 AM
Waymark Code: WM51ZW
Published By: Groundspeak Regular Member GEO*Trailblazer 1
Views: 18

Long Description:
The dam is the largest hydro-electric power station in the world. The total electric generating capacity of the dam will reach 22,500 MW

As with many dams, there is a debate over costs and benefits. Although there are economic benefits such as flood control, clean hydroelectricity and navigation, there are also concerns about the relocation of people, siltation, loss of archaeological and cultural sites and the impact on regional ecosystem.

When the water level is maximum at 175 metres (574 ft) over sea level (91 metres (299 ft) above river level), the reservoir created by the Three Gorges Dam is about 660 kilometres (410 mi) in length and 1.12 kilometres (0.70 mi) in width on average, and contains 39.3 cu km (9.43 cubic miles) of water.The total surface area of the reservoir is 1045 km². The reservoir will flood a total area of 632 km² of land compared to the 1,350 km² of reservoir created by the Itaipu Dam. The Three Gorges Dam reservoir is longer than the 560 kilometres (348 mi) length of Lake Superior, but only 1.1 % of the surface area of the lake (82,400 km²) and about 1/700 of the volume of the lake (28700 cu km).[10]

The dam will raise the water level the third time to its designed maximum water level (175 m above sea level) by the end of 2008
Progressive markers every 10m until 175m.



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