Hard engineering case study

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What is the name of the dam?
The Three Gorges Dam
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What country is the dam based?
China
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What river is the dam found along?
The River Yangtse
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After building the dam, what has happened to the chance of flooding along the river?
The risk of flooding has gone from 1 in 10 chance to 1 in 100 chance yearly
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How many people does the dam protect?
15 million people
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How much farmland does the dam protect?
25,000 hectares of farmland
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What are the pros of the dam?
Flood control, navigation, power genertion
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What are the cons of the dam?
Silt sitting behind the dam reducing the capacity, polluted water from waste, people forced to move from their homes
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Details about silt and the dam?
The Yangtse River carries 500 million tonnes of silt a year, 50% of this ends up sitting behind the dam reducing the water capacity drastically
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Details about water pollution and the dam?
The water in the dam is extremely polluted due to cities and shipping waste. Chongqing town pumps 1 billion tonnes of untreated waste a year into the river
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Details about people forced to move and the dam?
1.4 million people were forced to move from their homes. They were promised compensation, houses and jobs, however, never received these. $30 million which was set aside for compensation had been taken by corrupt Chinese officialls
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What is the height and length of the dam?
181m tall, 2.3km long
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What was the cost of the dam?
$25.5 billion
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Between which dates was the dam built?
1994-2009
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Card 2

Front

What country is the dam based?

Back

China

Card 3

Front

What river is the dam found along?

Back

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Card 4

Front

After building the dam, what has happened to the chance of flooding along the river?

Back

Preview of the front of card 4

Card 5

Front

How many people does the dam protect?

Back

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