I know a lot about the Ike and JFK route #'s.
For one, 1979 was when the Ike was renumbered as I-290. And the JFK was 90/94 to Edens,and 90 to Woodfield.
Previously, the Ike extention was finished around 1960 from 294 to York Rd/Lake St and was I-90. From there to future site of Woodfield, I-90 was labeled 'under construction' until 1970.
At same time, NW Tollway from JFK to IL 53 was l
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