How are Underwater tunnels made.
By: Grayson & Don
Question 1Question: What is the biggest underwater tunnel?
Answer: The Seikan Tunnel is a 33.46 mi railway tunnel in Japan, with a 14.5 mi portion under the sea. It is the longest undersea tunnel in the world.
We Got It On: Wikipedia
Question 2Question: What is the first underwater tunnel?
Answer: The Thames Tunnel is the first underwater tunnel, built beneath the River Thames in London.
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Question 3Question: What was the shape of the first underwater tunnel?
Answer: The shape of the first underwater tunnel is dome shaped.
We Got It On: Grolier
Question 4Question: How deep was the first underwater
tunnel?
Answer: The first underwater tunnel was 75 feet or 23 meters below the river's surface.
We Got It On: Media Center Website
Question 5Question: Were there leaks in the first
underwater tunnel?
Answer: Yes, there were leaks in the first underwater tunnel.
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Question 6Question: What are underwater tunnels made of?
Answer: The underwater tunnel is made of steel and concrete.
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Question 7Question: Have underwater tunnels collapsed?
Answer: Yes, they have collapsed.
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The Main QuestionQuestion: How are underwater tunnels made?
Answer: A tunnel shield, a rectangular cast iron wall with dozens of small shutters, let people build tunnels underwater. Marc Bunnel, a French Engineer invented the tunnel shield.
We Got It On: World Book
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