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

[JayhawkCO]

Closest (Kind of) 2di That I Haven't Traveled On - I-35W (TX) - 752 miles

That's a surprising one to me.  Not only have I driven on I-35W (TX) multiple times, but I've clinched it every time except once.

The one time I didn't clinch it was when I detoured due to an overturned truck on the highway.  It's also the last time I ever drove it, as I swore off driving through Dallas–Fort Worth that day.  Since then, I've only driven through it on one round-trip, and another vehicle made contact with mine at highway speed on I-35E.

I've never spent time in the metroplex, it was just driving or flying through. I've taken I-20 and I-30 straight through and I've done I-35E to either I-20 or I-45, but just never had the reason to do a north to south movement (or a north to west movement), otherwise I would have taken it.

[freebrickproductions]

I-169 (KY) is probably the closest one I have not been on any part of.

For 2dis only, it'd be I-44 for the closest that I ain't been on.

Now I'm fairly certain it's I-575 in Georgia. That may have been closer to begin with, but it doesn't really matter anymore seeing as I've clinched I-169 now anyways.

[dlsterner]

From home base in Maryland, approximate driving distance:

2di:  I-16 (Georgia), ~600 miles
3di:  I-676 (PA/NJ),  ~120 miles

Last December I drove a segment of I-16, so my new answer:

From home base in Maryland, approximate driving distance:

2di:  I-72 (Illinois), ~710 miles
3di:  I-676 (PA/NJ),   ~120 miles

[achilles765]

For me I think the routes closest to me that I've never been on any part of are

Interstate 27 and Interstate 44

[Buster Cannon]

This is tricky; at minimum, I've at least been on small segments of Interstates fanning several states outwards of the DC area. Closest one (mileage-wise) is I-84 in PA/NY.

[SkyPesos]

2di: I-96 (~235 miles from Cincinnati)
3di: I-264 (~85 miles)

Update
2di: I-88 (IL)
3di: I-155 (IL)

[hobsini2]

Wow a tough travel question. (clinched route in bold)
I have driven at least a mile on:
4, 5, 10, 11, 15, 16, 17, 20, 22, 24, 25, 26, 27, 29, 30, 35, 39, 40, 41, 43, 44, 45, 49 (technically before it was 49 in MO), 55, 57, 59, 64, 65, 66, 69, 70, 71, 72, 73, 74 West, 74 East, 75, 76 West, 76 East, 77, 78, 79, 80, 81, 84 East, 85, 86 East, 87 North, 88 West, 88 East, 89, 90, 91, 93, 94, 95, 96, 99

Never touched:
2, 8, 12, 14, 19, 37, 42, 68, 82, 83, 84 West, 86 West, 87 South, 97

So I guess the closest would be I-68.

[Beltway]

The closest to me (central Virginia)?

Probably would have to go as far as I-93 or I-59 or I-22.

[Road Hog]

From Salem, Oregon:

Closest 3di: I-115. I've been to Butte, but never took the spur into downtown.

Closest 2di: I-27. Again, a close one -- I've twice driven I-40 through the interchange with I-27. I even have a photo of the signage there:

I-27 is the one for me. I have driven to both Amarillo and Lubbock, but each instance was driving east-west and never betwixt the two.

I think I have driven pre-existing predecessors of I-14 and I-69 in small parts. The same is true for present-day I-22, which I took on a road trip to Orlando in the 1990s as US 78.

[Hunty2022]

It's been two years since I last posted in this thread, so I'll update it. This time with the top 5 in each category:

2di:
I-68
I-83
I-79
I-73 (NC)
I-87 (NC)

3di:
I-270 (MD)
I-895 (MD)
I-195 (MD)
I-695 (MD)
I-795 (MD)

[CovalenceSTU]

Since it's been a few years for me too:
2di: I-90 (about 170 miles)
3di: I-405, WA (about 155 miles)

[Thing 342]

Recently drove a bit of I-89 and I-91, so new answers:

2-digit: I-96
3-digit: I-176 (PA)

[Hobart]

Interstate 229 in Sioux Falls is the closest Interstate I do not remember being on.

I recently moved to Saint Paul and have unfortunately gotten very familiar with every Interstate highway in the state.

[TheRhodeGeek]

2di: I-89 (was going to say I-90 until I realized I have been on the portion east of the I-93 interchange)
3di: I-395 (MA/CT) (I have been on 290 though) or I-291 (CT)
Yes, I have been on portions of all of the major interstates in RI, MA, and CT (84 and 91 were CT only)

Update:
2di would now be I-88 NY
3di is still the same but also I-384 because I forgot about it (and yes I still consider I-395 and I-290 the same highway)

[therocket]

2DI: I-19 in Tucson (approx. 420 miles)
3DI: I-215 in Las Vegas (approx. 217 miles)

3DI is probably I-680 in the Bay Area (~324 miles)

[NWI_Irish96]

Overall: I-380
2di: I-49

My closest overall is now I-480 in Ohio.

My closest overall is now I-235 in Iowa.

[BrianP]

I-195 VA, a bit over 100 miles
I-86 NY edges out I-77. ~214 vs ~225 miles
I've been on the Southern Tier Expressway.  But that was before it became I-86.

Also when I-87 NC reaches Edenton or so then it will become the closest.  I count it separate from I-87 NY.

[I-57/Route 66 Fan]

Including concurrencies if the Blue Line counts 290, if not either 43 (IDK if I remember being on that one or not), or 41 (which I do not recognize as a Interstate), so in that case 894. If we are talking about Illinois though, 172.

[kphoger]

if the Blue Line counts 290

What?  If the Blue Line counts as I-290, then you've never been on I-290?  That makes no sense.

[Rothman]

if the Blue Line counts 290

What?  If the Blue Line counts as I-290, then you've never been on I-290?  That makes no sense.

There's embracing one's weirdness and then there's weirdness that should be reined in.  The latter is applying here...

[TheCatalyst31]

41 (which I do not recognize as a Interstate)

The blue shield disagrees with you on that one. At least the silly number follows the rules, which is more than I can say about I-99, I-74 NC, I-238, I-69W/C/E, etc.

[PNWRoadgeek]

I-86 in Idaho, I don't think that my answer there is all that surprising.

[I-57/Route 66 Fan]

41 (which I do not recognize as a Interstate)

The blue shield disagrees with you on that one. At least the silly number follows the rules, which is more than I can say about I-99, I-74 NC, I-238, I-69W/C/E, etc.

True

[Beltway]

Mainline -- I-24
Supplementary -- NC I-277

[kphoger]

Supplementary

If by "supplementary" you mean "auxiliary", then...

This distinction matters less to me, living in Wichita, than it probably does to people in other regions.  I-135 is an almost-hundred-mile-long trunk route through farmland and is probably the third-most important highway in the state.  So it feels weird to think of it as a second-class route just because of its three-digit number.

Anyway, that was just a total aside.  Carry on, everyone...