Interstates with no 3di's or a very few of them

[Mergingtraffic]

I guess I never thought of it before, but I-84 on both sides of the conutry only has one even ended 3di.
I-684

and only 2 odd ended 3di.

I-184 and I-384

Any others that come to mind?

or any that use up all the 3dis including odd and even?
I-90 and I-95 come to mind.

[froggie]

Only one state and 2-digit route uses all the potential 3-digits...that being I-90 in New York.  I-95 doesn't.

[cu2010]

The two I-86's have exactly zero 3di's...

17 and 19 also have zero, along with the entire state of Arizona!

[njroadhorse]

I-43 has none, as well as I-4, I-8, and I-24.

[Alex]

I guess I never thought of it before, but I-84 on both sides of the conutry only has one even ended 3di.
I-684

and only 2 odd ended 3di.

I-184 and I-384

Any others that come to mind?

or any that use up all the 3dis including odd and even?
I-90 and I-95 come to mind.

Well I-84 did have I-284 and I-484 planned but never built...

[Ian]

• Neither of the I-88's have 3di's
• I-97 doesn't have any, but there were planned
• I-99 has none
• I-16 in Georgia only has I-516 in Savannah
• I-89 only has I-189 in Burlington, VT

[corco]

I-25 only has I-225, the western I-76 doesn't have any, I-27 doesn't have any

[Grzrd]

I-4 has no 3dis, but it has a terminus with a 3di, I-275.
I-12 has no 3dis, but somewhat interesting that its eastern terminus is with 2 separate 2dis, I-59 and I-10.
I-49 has no 3dis (may change in future).

EDIT

I-43 has none, as well as I-4, I-8, and I-24.

Sorry, I missed the above I-4 before I posted.

[rickmastfan67]

I-68 has none.
I-79 has two (I-279 and I-579).

[Grzrd]

I believe US 27 in Chattanooga is still unsigned I-124.
If so, I-24 has no signed 3dis and one unsigned 3di.

[froggie]

I-43 has none, as well as I-4, I-8, and I-24.

I believe US 27 in Chattanooga is still unsigned I-124.

Grzrd is correct here, at least south of the Tennessee River.  The south end of the river bridge is the official terminus.

[Quillz]

15 only has 115, 215 and 315, IIRC.

[Quillz]

Also, I-8 has no 3di.

[corco]

15 only has 115, 215 and 315, IIRC.

And 515

[Quillz]

15 only has 115, 215 and 315, IIRC.

And 515

Yup, remembered Las Vegas just after posting.

[Dr Frankenstein]

I-89 has only one, in Burlington, which is only one mile.

[hbelkins]

Didn't see I-66 mentioned.

[Quillz]

4, 8, 12, 17, 19, 27, 39, 49, 57, 66, 86, 97, 99 all have no 3di. (Posted this off the top of my head, probably wrong about a few.)

[akotchi]

I believe I-80 uses all the possible 3di combinations in its run cross-country, albeit not all in one state.

Neither of the I-88s have 3di's.

[rickmastfan67]

4, 8, 12, 17, 19, 27, 37, 39, 43, 49, 57, 66, 68, 73, 86, 88, 97, 99 all have no 3di. (Posted this off the top of my head, probably wrong about a few.)

Updated your list above with the missing ones.

[Hot Rod Hootenanny]

I-72 & I-74 have one 3di each.

[Grzrd]

I-44 has one signed 3di (I-244 Tulsa), one unsigned 3di (I-444 Tulsa), and one decommissioned 3di (I-244 St. Louis, now I-270).

[national highway 1]

I-57 is the longest interstate without a 3di.

[mapman1071]

I-4 has no 3dis, but it has a terminus with a 3di, I-275.
I-12 has no 3dis, but somewhat interesting that its eastern terminus is with 2 separate 2dis, I-59 and I-10.
I-49 has no 3dis (may change in future).

EDIT

I-43 has none, as well as I-4, I-8, and I-24.

Sorry, I missed the above I-4 before I posted.

I-12 should be a I-x10

[mapman1071]

15 only has 115, 215 and 315, IIRC.

And 515

I-515 May be decommissioned and renumbered I-11