What engineering principles apply to each of the following type of bridge 
listed and where can examples of each be found in nature? 

   1.BEAM 
     a.  
     b. 

   2.ARCH 
     a.  
     b.  
 
   3.SUSPENSION 
     a.  
     b.  

   4.CANTILEVER 
     a.  
     b. 

   5.PONTOON 
     a.  
     b. 


     Answer the following as completely as possible:

   6.WHAT DID EARLY CIVILIZATIONS USE FOR BRIDGES? 

      

   7.WHAT WERE THE ADVANTAGES AND DISADVANTAGES OF COVERED
     BRIDGES? 


      
   8.WHY WERE BRIDGES (AND TUNNELS) IMPORTANT TO RAILROADS? 

      

   9.WHAT ARE THE MOST COMMON MATERIALS USED IN BRIDGE
     CONSTRUCTION? 

      

  10.WHAT WAS THE PROBLEM WITH IRON BRIDGES? 

      

  11.NAME AND LOCATE THE FIRST STEEL BRIDGE IN THE WORLD. 
     


  12.WHAT CAUSED THE TACOMA NARROWS BRIDGE TO COLLAPSE? 

      

  13.NAME AND LOCATE 4 FAMOUS BRIDGES IN THE UNITED STATES...IN THE
     WORLD? 
     
 

  14.IDENTIFY SOME BOOKS, SONGS, OR MOVIES THAT HAVE BRIDGE IN THE
     TITLE 
  15.WHEN DID CONSTRUCTION BEGIN ON THE 4-LANE INTERSTATE HIGHWAY
     SYSTEM? 
    


  16.COMPARED TO BRIDGES, WHAT ADVANTAGES DO FERRY BOATS HAVE?
     (VICE-VERSA) 
     a.

     b. 


  17.BRIDGES HELP TO TRANSPORT A VARIETY OF THINGS. NAME AS MANY AS
     YOU CAN: 
     



  18.LOCATE AND IDENTIFY AS MANY BRIDGES AS YOU CAN IN YOUR
     COMMUNITY...TOWN...CITY...STATE: Three Types, 4 bridges





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