non-interstate freeways which cross state lines

[mukade]

Technically, I think it was only designed as an expressway in Indiana too, and by luck it has almost no at-grade intersections.  If the speed limit is 60MPH, that would be evidence that INDOT doesn't consider it a freeway. 

US 24 in Indiana is being built basically as a freeway with the exception of the Interstate 469 interchange. The 60 MPH speed limit thing might only be temporary since the current freeway standard goes for only a mile, so there isn't much time to get to 65. We'll see after they open the rest of the highway what they make the speed limit.

I posted a picture a while back on the new Indiana section of the Fort to Port showing the 60 MPH speed limit signs - not sure why. I believe the US 24 interchange at Bruick Road is a "low level interchange" so am not sure that one is up to interstate standards, but it seems to be a real freeway to me from Bruick to the Ohio line (two interchanges and many grade separations).

US 231 sort of enters Indiana as a freeway as well - albeit only with one interchange at SR 66. Kentucky is upgrading parts of US 231 near Owensboro, but I am not sure if it will be a freeway up to the Ohio River.

[hbelkins]

US 231 sort of enters Indiana as a freeway as well - albeit only with one interchange at SR 66. Kentucky is upgrading parts of US 231 near Owensboro, but I am not sure if it will be a freeway up to the Ohio River.

No. There are at-grades (for the access to the farmlands) between US 231 and US 60, and on the combined route between the intersection and the start of the new construction.