CTA Infrastructure Data Portal

Since August 2011, Chicago Transit Authority (CTA) has engaged Dynasty Group, as a subconsultant through several engineering contracts, to collect data along the Red, Purple, sections of the Green and sections of the Blue Lines. In addition, Dynasty Group, under contracts through Illinois Department of Transportation and Chicago Department of Transportation, has collected data on the CTA tracks.
  • Available Data
  • Permanent Survey Controls
  • Map
  • Map

Legend

Data available
Data coming soon
Managed by Dynasty Group
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