Highways You Have Clinched

[jlam]

Illinois I-190 via CTA Blue Line (If that counts)

I'd say that that counts. The line is in the median of the highway at ground level for the highway's entire length, so the experience is essentially the same.

[flan]

After a lengthy and circuitous round trip to and from Chicago I got only one clinch but it's a pretty big one: the mammoth WI 193.

[Sapphuby]

If we don't count roadways that lead to a single ramp, I-255 IL. Otherwise I finally got a hold of I-64 and I-255 in Missouri. Now all I need is I-270...

[Rothman]

Took a spur-of-a-moment trip up to Milwaukee post-Chicago-meet yesterday.  Have now clinched all of I-43.