[Chi-townChief]

Columbus / Southwest Highway runs all the way out to Lockport as Illinois 7. These streets are all angled to follow the river as is the Stevenson I-55.

[carlo3b]

Thanks..

[aruanan]

Columbus / Southwest Highway runs all the way out to Lockport as Illinois 7. These streets are all angled to follow the river as is the Stevenson I-55.

That makes sense. So they were probably some of the oldest streets in the city.