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Are there any floating bridges in the United States?

There are four floating bridges (bridges supported by floating structures called pontoons) in the United States, all located in the state of Washington. Three are in Seattle-, the Evergreen Point Bridge, constructed in 1963, is 7,518 feet (2,291 meters) long; the Third Lake Washington Bridge, constructed in 1989, is 6,130 feet (1,868 meters) long; and the Lacy V. Murrow—Lake Washington Bridge, constructed in 1993, is 6,543 feet (1,994 meters) long. The Hood Canal Bridge, in Port Gamble, Washington, was constructed in 1961 and is 6,471 feet (1,972 meters) long.

Sources: Famighetti, Robert, ed. The World Almanac and Book of Facts 1995, p. 692; The Guinness Book of Records, 1996, p. 100.

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1. Bridges And Tunnels
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   2. What are the various types of bridge structures?
   3. What is the world's longest bridge span?
   4. Are there any floating bridges in the United States?
   5. Where is the longest suspension bridge in the United States?
   6. Who designed the Golden Gate Bridge?
   7. Which area of the United States has the greatest number of bridges?
   8. Who built the Brooklyn Bridge?
   9. Where is the longest bridge-tunnel in the world located?
   10. What is the world's longest rood tunnel?
2. Streets And Highways
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   2. How are United States highways numbered?
   3. How was early macadam different from modern paved roads?
   4. What is a jersey barrier?
   5. Which city had the first traffic light?
   6. Which state has the most miles of roads?
3. Buildings
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   2. What are the tallest buildings in the world?
   3. What material was used to construct the exterior oft the empire State Building?
   4. Which building has the largest nonair-supported clear span roof?
   5. Who invented the geodesic dome?
   6. How much does the leaning tower of Pisa lean?
   7. What is rammed earth?
   8. How many acres of trees are used in the construction of a single-family home?
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   2. How big is the Hoover Dam?
   3. What are the dimensions of the Eiffel Tower?
   4. Who invented the Ferris wheel and when?
   5. Where did roller coasters originate?
   6. How tall is the figure on the Statue of Liberty and how much does it weigh?