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• Heavy Traffic On The Dan Ryan Expressway In Chicago Illinois. It Is The Busiest In The United States With 254,700 Vehicles Daily, 10/1973

  • Uploaded by: U.S. National Archives
  • License: No known copyright restrictions
  • 0 comments
  • 21 favorites
  • 27,560 views
  • Date taken: 1973-10
  • Date uploaded: 2013-04-23
  • Tags: usnationalarchives, environmentalprotectionagency, documerica, chicago, africanamerican, nara:arcid=556194
  • Visibility: public