Why take down all the I-540 signs immediately, AHTD?

[apjung]

I guess that's why I-910 isn't signed to avoid confusion when the day comes for it to be signed as I-49.

[US71]

I noticed today that overhead signs on EB I-40 near Van Buren, still reference NB I-540

[Avalanchez71]

So US 71 is not signed through here? 

[Scott5114]

Those are some pretty fugly 540 shields anyway...

[US71]

So US 71 is not signed through here? 

No.
Between I-40 Exit 13 and I-540 Exit 12, 71 isn't posted except on a few overhead signs for I-540. And that has only been since 2009.

It was posted on NB 540 near I-40, but disappeared when the new exit signs were erected.