Even if the US 52 corridor doesn't get an Interstate designation (not that I think it needs one), I think all of the exits on US 52 from Interstate 90 in Rochester to Interstate 94 in Saint Paul should have exit numbers. Also, in my opinion, the existing Interstate 37 in Texas will probably be the only corridor that will have the 37 designation, although Interstate 155 in Illinois could have gotten the Interstate 37 designation, as that was the designation Illinois wanted for the corridor. However, that number was turned down in favor of the 155 designation.