Routes you've used in 2 bordering states but never crossed the state line on it

[JayhawkCO]

Not too many, with only I-81 being my repeat offender.

I-5: CA/OR
I-10: TX/LA
I-20: GA/SC
I-40: CA/AZ
I-59: AL/GA
I-64: WV/VA
I-69: IN/MI
I-77: WV/OH
I-80: OH/PA
I-81: TN/VA, VA/WV, MD/PA
I-85: AL/GA

[jp the roadgeek]

I-95 in PA and NJ (though I did cross it on the old route)

94 WI and IL

My guess is these are going to be the two most common answers, the first one for the reason mentioned, and the second because the I-90/I-94 situation seems custom-made for this thread: I-94 literally leaves I-90 and crosses the state line, only to rejoin it less than 150 miles later.

I-95 DE-MD might also be common because shunpiking.

[JayhawkCO]

I-95 in PA and NJ (though I did cross it on the old route)

94 WI and IL

My guess is these are going to be the two most common answers, the first one for the reason mentioned, and the second because the I-90/I-94 situation seems custom-made for this thread: I-94 literally leaves I-90 and crosses the state line, only to rejoin it less than 150 miles later.

I-95 DE-MD might also be common because shunpiking.

I would also just guess that I-95 in PA is pretty easy to miss in general, because so many people would go I-95->I-295->NJTpk.  I only finally travelled on it this past October because I went out of my way to (to finish all of I-95).

[kphoger]

I-29   MO/IA
I-40   OK/TX
I-44   MO/OK
I-94   IL/WI (except on Greyhound)

[GaryV]

70: OH/PA

See my note of caution in reply #4... almost did the same thing myself but I-70 actually goes through WV between OH and PA.

I even read that post, but I guess I was too tired to notice my own mistake.

It's not a mistake if you accept my trivial MI/WI I-94 entry.

[SkyPesos]

70: OH/PA

See my note of caution in reply #4... almost did the same thing myself but I-70 actually goes through WV between OH and PA.

I even read that post, but I guess I was too tired to notice my own mistake.

It's not a mistake if you accept my trivial MI/WI I-94 entry.

Clarification: I mentioned "neighboring states on route"  in the op, so don't count borders where two states border each other, but the route doesn't cross that border and goes through another state or two in between.

[JayhawkCO]

We can also expand this topic to 3dis.

For me:
I-265: KY/IN
I-275: KY/OH

[SkyPesos]

We can also expand this topic to 3dis.

For me:
I-265: KY/IN
I-275: KY/OH

Could expand to US routes as well. I'll make the change in the op.

[JayhawkCO]

We can also expand this topic to 3dis.

For me:
I-265: KY/IN
I-275: KY/OH

Could expand to US routes as well. I'll make the change in the op.

I'll have so many of those. There goes my afternoon.  EDIT: Not as bad as I thought. See below.

[SkyPesos]

We can also expand this topic to 3dis.

For me:
I-265: KY/IN
I-275: KY/OH

Could expand to US routes as well. I'll make the change in the op.

I'll have so many of those. There goes my afternoon.

I think I have more US routes that I used in two neighboring states without crossing the state line than with crossing it, due to the nature of a lot of them acting as local routes to parallel interstates 

[GaryV]

US routes, quickly off the top of my head:
US 41, MI/WI and WI/IL
US 24, MI/OH
US 6, OH/PA

[kphoger]

We can also expand this topic to 3dis.

It's possible I've never crossed the IL/MO line on I-255, but I'm not 100% sure.  That's the only one I can come up with.

[CoreySamson]

From what I can see, none of the interstates I've traveled on satisfy these criteria. Nope, turns out I actually do:

I-55: AR/TN

And I have a few US Routes:

US 64: AR/TN
US 70: AR/TN
US 190: TX/LA

[hbelkins]

Probably a bunch of US routes, but for interstates, off the top of my head:

20: AL-GA, GA-SC
29: MO-IA
35: TX-OK, OK-KS, KS-MO, MO-IA
78: NJ-NY (if that counts)
85: GA-SC, SC-NC
89: NH-VT
90: MT-WY, SD-MN, IL-IN
94: WI-IL

[jp the roadgeek]

Since we're expanding to 3di and US Routes:

Can't think of any 3DI's.  Would be easier to list the borders I have crossed.

US Routes
US 1: MA/NH
US 6: RI/MA
US 9: NJ/DE
US 11: MD/PA
US 13: DE/PA
US 202: NJ/NY and MA/NH

I could put US 44 RI/MA with an asterisk.  The only portion of what is now US 44 I've been on in MA is the portion concurrent with MA 3, but it was before the concurrency was created.

Would love to meet someone who could list I-684

[kphoger]

I'm surprised I'm not the only one on here with I-29 MO/IA.  Is it because y'all have used them in KC and either Council Bluffs or Sioux City but not in the rural areas between them?

For me, I've driven the stretch from KC up to St Joseph but then kept going north on US-71 that trip.  I've also driven up into Council Bluffs (and on to Sioux City) but had entered I-29 from NE-2 on that trip.  So the stretch from I-229 to NE-2 is a gap for me.

[JayhawkCO]

OK. Here goes for US routes:

1: NC/VA, PA/NJ, NY/CT, CT/RI, RI/MA
2: WA/ID, ID/MT, MT/ND, NH/ME
3: MA/NH
5: MA/VT
6: CT/RI
12: WA/ID, ID/MT
14: SD/MN
15: SC/NC
16: WY/SD
17: FL/GA
19: FL/GA
20: WY/NE, IA/IL
22: PA/NJ
25: KY/TN
26: OR/ID, ID/WY
27: FL/GA, GA/TN
30: NE/IA
36: IL/IN
40: IN/OH, MD/DE
41: IN/IL
49: MS/AR
50: CA/NV, NV/UT, DC/MD
51: LA/MS, MS/TN, IL/WI
52: KY/WV
54: KS/MO
56: OK/KS
60: AZ/NM, TX/OK, OK/MO, KY/WV, WV/VA
61: LA/MS, MS/TN, AR/MO, MO/IA, IA/WI
62: OK/AR, AR/MO
64: OK/AR, TN/NC
65: AR/MO, MO/IA, IA/MN
67: TX/AR
69: MO/IA
70: AZ/NM, OK/AR, TN/NC
71: AR/TX
74: TN/NC
75: TX/OK, IA/MN
77: OK/KS, KS/NE
80: TX/LA, MS/AL, AL/GA
81: OK/KS
82: AL/GA
83: SD/ND
84: MS/AL, AL/GA
85: WY/SD
87: TX/NM
89: UT/ID, ID/WY
90: TX/LA, AL/FL
93: NV/ID
95: NV/OR, OR/ID
98: AL/FL
101: CA/OR
167: LA/AR
180: AZ/NM
202: NH/ME
220: NC/VA, MD/PA
281: OK/KS
283: TX/OK, OK/KS
301: SC/NC
412: OK/AR, AR/MO

[JayhawkCO]

78: NJ-NY (if that counts)

Did you walk into the tunnel from the NY side but turn around before hitting NJ?

[jaehak]

8 CA-AZ (only been on it in SD and Gila Bend to 10)
10 CA-AZ (LA metro and PHX to Tucson)
65 AL-TN (Birmingham and Nashville
80 CA-NV (took scenic route through Tahoe)
80 NV-UT (took 50)

[US 89]

Alright, fine. My list of US routes will be...not short

US 11, AL/GA
US 17, SC/NC
US 23, GA/NC
US 26, ID/WY
US 26, WY/NE
US 27, GA/TN
US 29, AL/GA
US 29, SC/NC
US 29, NC/VA
US 30, OR/ID
US 31, TN/KY (though how much does this exist anyway with the E/W split)
US 34, CO/NE
US 40, CO/KS
US 50, CA/NV
US 50, MO/IL
US 52, NC/SC
US 54, KS/MO
US 56, KS/MO
US 60, NM/TX
US 60, TX/OK
US 60, TX/MO
US 61, AR/MO
US 62, OK/AR
US 64, OK/AR
US 65, AR/MO
US 67, TX/AR
US 69, OK/KS
US 70, TN/NC
US 71, AR/MO
US 72, TN/AL
US 75, TX/OK
US 76, SC/NC
US 77, TX/OK
US 78, AL/GA
US 82, AL/GA
US 85, CO/WY
US 93, NV/ID
US 93, ID/MT
US 160, CO/KS
US 160, KS/MO
US 169, OK/KS
US 231, AL/TN
US 275, IA/NE
US 285, NM/CO
US 287, TX/OK
US 319, FL/GA
US 385, TX/OK
US 411, AL/GA
US 412, OK/AR
US 431, AL/TN
US 441, GA/NC
US 501, SC/NC

[Evan_Th]

Surprisingly not that many.

5:  CA/OR (I haven't been on it south of Salem, or north of LA.)
64:  WV/VA (I took the WV Turnpike, and then the I-95 concurrency in Richmond.)
70:  PA/MD (I took I-68/I-79.)
94:  WI/IL  (I don't think I've driven between Milwaukee and Chicago.)
95:  PA/NJ (Yeah, the standard.)

Edit:  Fix typo; I-94 doesn't even go into WA!

[Rothman]

Thread is out of control.

[webny99]

Thread is out of control.

...at least regarding the below. 

94:  WA/IL

[kphoger]

Thread is out of control.

...at least regarding the below. 

94:  WA/IL

Maybe he's used I-94 in both North Dakota and Minnesota, but he's never crossed the Washington or Illinois state line on I-94.

Oh, wait, I-94 doesn't go to Washington at all.  Darn.

[Evan_Th]

Thread is out of control.

...at least regarding the below. 

94:  WA/IL

Maybe he's used I-94 in both North Dakota and Minnesota, but he's never crossed the Washington or Illinois state line on I-94.

Oh, wait, I-94 doesn't go to Washington at all.  Darn.

It was a typo; no idea how!  I meant to say WI/IL!