What's the Number of This 2di?

[NE2]

For the sake of this thread, Business Spurs don't count.

You don't own this thread.

[PNWRoadgeek]

For the sake of this thread, Business Spurs don't count.

You don't own this thread.

Only the Alan's own threads.

[pianocello]

I-65: the one that crosses from the Central Time Zone to Eastern Time and back

[Hot Rod Hootenanny]

I-24: Contains the widest median within the interstate system

[Beltway]

The one that exists in Virginia and Washington, DC, but once had routing proposals further west that are now cancelled: I-66

The one that exists in Virginia and Washington, DC -- not the famed US Route 66 out west -- I-66

[bassoon1986]

The only 2di interstate to continue as its spur route at its terminus

I-20.

Not even close; it's I-45, but the spur route is not even signed!

How is this not I-20's spur route? https://travelmapping.net/hb/showroute.php?r=sc.i020bsflo

I should have clarified. 3di. Was thinking odd number spur not business spur