What's the Closest Interstate to you that you Have Never Been on Any of it?

[ZLoth]

The closest for me is I-14 in Temple, Texas. Considering that it was "constructed" in 2017, it also happens to be the newest Interstate that I haven't been on. I just haven't driven that far south yet because of Coved (2020-2021), high gas prices (2022), and adult caregiver (2022-present) putting any possible multi-day road trips on a permanent hold.

Still Interstate 14. Still the same reasons.

Dallas to Copperas Cove is two and a half hours. Why would you need to make a multi-day trip out of that?

As a adult caregiver, it's hard to leave my mother alone for more than a few hours. Can I make it in a single day? Yes, but I had plans for multi-day road trips to explore my new home state.

[Road Hog]

If I count interstates I've intersected, that's a dang wide net to cast. I definitely have never been on I-2 though.

[Rothman]

If I count interstates I've intersected, that's a dang wide net to cast. I definitely have never been on I-2 though.

Intersected?  If you stayed on the route you were on, then you weren't on the route that you "intersected"...

[JayhawkCO]

If I count interstates I've intersected, that's a dang wide net to cast. I definitely have never been on I-2 though.

Intersected?  If you stayed on the route you were on, then you weren't on the route that you "intersected"...

I listed all combinations in my list. It's not the answer to the OP, but it's tangential.

Closest Interstate Overall I Haven't Traveled On - I-110 (TX) - 633 miles
Closest (Kind of) 2di That I Haven't Traveled On - I-35W (TX) - 752 miles
Closest 3di (Unsigned) That I Haven't Traveled On Nor Intersected - I-315 (MT) - 786 miles
Closest 2di That I Haven't Traveled On Nor Intersected - I-14 - 878 miles
Closest 3di (Signed) That I Haven't Traveled On Nor Intersected - I-474 (IL) - 933 miles

[cenlaroads]

Interstate 14 - About 3 hours from me