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<classification authority="sudocs">GA 1.13:GAO-07-770</classification>
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 <subject>Federal aid for transportation</subject>
 <subject>Federal aid to railroads</subject>
 <subject>Federal funds</subject>
 <subject>Freight trains</subject>
 <subject>Freight transportation</subject>
 <subject>Inspection</subject>
 <subject>Public key infrastructure</subject>
 <subject>Railroad accidents</subject>
 <subject>Railroad bridges</subject>
 <subject>Railroad industry</subject>
 <subject>Railroad regulation</subject>
 <subject>Railroad safety</subject>
 <subject>Railroad tunnels</subject>
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<titleInfo>
 <title>Railroad Bridges and Tunnels: Federal Role in Providing Safety Oversight and Freight Infrastructure Investment Could Be Better Targeted</title>
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<abstract>Freight railroads account for over 40 percent (by weight) of the
nation&apos;s freight on a privately owned network that was largely	 
built almost 100 years ago and includes over 76,000 railroad	 
bridges and over 800 tunnels. As requested, GAO provides	 
information on this infrastructure, addressing (1) the		 
information that is available on the condition of railroad	 
bridges and tunnels and on their contribution to railroad	 
congestion, (2) the federal role in overseeing railroad bridge	 
and tunnel safety, (3) the current uses of public funds for	 
railroad infrastructure investments, and (4) criteria and a	 
framework for guiding any future federal role in freight	 
infrastructure investments. GAO reviewed federal bridge safety	 
guidelines and reports, conducted site visits, and interviewed	 
federal, state, railroad, and other officials.</abstract>
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<identifier type="preferred citation">GAO-07-770</identifier>
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 <searchTitle>GAO-07-770; Railroad Bridges and Tunnels: Federal Role in Providing Safety Oversight and Freight Infrastructure Investment Could Be Better Targeted;
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<subject>
 <topic>Federal aid for transportation</topic>
 <topic>Federal aid to railroads</topic>
 <topic>Federal funds</topic>
 <topic>Freight trains</topic>
 <topic>Freight transportation</topic>
 <topic>Inspection</topic>
 <topic>Public key infrastructure</topic>
 <topic>Railroad accidents</topic>
 <topic>Railroad bridges</topic>
 <topic>Railroad industry</topic>
 <topic>Railroad regulation</topic>
 <topic>Railroad safety</topic>
 <topic>Railroad tunnels</topic>
 <topic>Safety regulation</topic>
 <topic>Safety standards</topic>
 <topic>Executive agency oversight</topic>
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  <title>United States Code</title>
  <partNumber>Title 49 Chapter 201</partNumber>
  <partNumber>Title 49 Chapter 213</partNumber>
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 <identifier type="USC citation">49 U.S.C. Chapter 201</identifier>
 <identifier type="USC citation">49 U.S.C. Chapter 213</identifier>
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