I don't think there are a lot. For the PA turnpike, there is only one other interchange like this left in Middlesex, PA at I-76/I-81/US 11, with another near Ph

I don't think there are a lot. For the PA turnpike, there is only one other interchange like this left in Middlesex, PA at I-76/I-81/US 11, with another near Philly being fixed. And even then it is a much more built-up 4-lane section of US 11 https://en.wikipedia.org/wiki/Breezewood,_Pennsylvania#Unusual_I-70_alignment https://en.wikipedia.org/wiki/Breezewood,_Pennsylvania#Unusu...