FILE - This May 17, 2012 file photo show the steel skeleton for the eastern end of the new Innerbelt Bridge in Cleveland sits next to the existing span. Much of America’s infrastructure, including its interstate highway system, is more than half a century old and in need of serious work to keep pace with a rising population. Highway, rail and airport bottlenecks slow the movement of goods and commuters, costing billions in wasted time and fuel and even measurably slowing the economy. (AP Photo/Mark Duncan, File)

Associated Press
FILE - This May 17, 2012 file photo show the steel skeleton for the eastern end of the new Innerbelt Bridge in Cleveland sits next to the existing span. Much of America’s infrastructure, including its interstate highway system, is more than half a century old and in need of serious work to keep pace with a rising population. Highway, rail and airport bottlenecks slow the movement of goods and commuters, costing billions in wasted time and fuel and even measurably slowing the economy. (AP Photo/Mark Duncan, File)
FILE - This May 17, 2012 file photo show the steel skeleton for the eastern end of the new Innerbelt Bridge in Cleveland sits next to the existing span. Much of America’s infrastructure, including its interstate highway system, is more than half a century old and in need of serious work to keep pace with a rising population. Highway, rail and airport bottlenecks slow the movement of goods and commuters, costing billions in wasted time and fuel and even measurably slowing the economy. (AP Photo/Mark Duncan, File)
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