Definitive list of indirect 2-digit Interstates

[NE2]

I-90 between Billings and Rapid City. US 212 is 56 miles shorter and crosses similar terrain. The Goog gives almost equal times, but I don't trust their times. Routing I-90 on the more direct alignment would have added about 45 miles of construction due to I-25.

[Molandfreak]

I-90 between Billings and Rapid City. US 212 is 56 miles shorter and crosses similar terrain. The Goog gives almost equal times, but I don't trust their times. Routing I-90 on the more direct alignment would have added about 45 miles of construction due to I-25.

Similarly, Montana 47 is the fastest way between westbound 94 and eastbound 90.

[NE2]

Similarly, I-75 is the fastest way between westbound 94 and eastbound 90.

Fixed for you. PS: you're missing the point of this thread.

[Molandfreak]

Similarly, I-75 is the fastest way between westbound 94 and eastbound 90.

Fixed for you. PS: you're missing the point of this thread.

You did the same thing with 212 pretty much, as a shortcut.

[NE2]

As a shortcut FROM I-90 TO I-90. READ THE FUCKING THREAD.

[Molandfreak]

As a shortcut FROM I-90 TO I-90. READ THE FUCKING THREAD.

Yeah. And I pointed out another thing similar to that. And I guess I shouldn't have. I only thought it was similar in the fact that I-25 traffic's basic continuity patterns would go here if they wanted EB 94.

Either way, just... Nothing happened... Please... I'm already facepalming my stupidity far too much here...



Here we go... It is shorter to use U.S. 12 between Minneapolis and Miles City than it is to use 94. Thus, the shortest possible route between Tomah and Billings is (90)-94-12-94-(90)

[Sykotyk]

I-10 through New Orleans is shorted by I-12.

I-70 through St. Louis (shorted by I-270 across the north).
I-70 through St. Louis to (shorted by I-64 from the new west end to PSB)

I-94 through Milwaukee (shorted by I-90 from Chicago to Madison)
I-94 through Gary/Chicago (shorted by I-90 and the Chicago Skyway)

I-69 through Michigan from Port Huron to Indianapolis (shorted by I-94/I-75/US24/I-469 by 30+ miles)

Another slight one:

I-77 through Ohio from Cleveland to Cambridge (shorted by current OH21 former US21 through Massillon)

[agentsteel53]

I-95 around Boston is shortened by MA-128/I-93 by about five miles.

but I don't know if it makes sense to use this, given the traffic patterns.

[NE2]

There are many, many places where taking the old surface road is slightly shorter but not faster. If we list all of those we're idiots.

[Molandfreak]

There are many, many places where taking the old surface road is slightly shorter but not faster. If we list all of those we're idiots.

This is true

[Sykotyk]

There are many, many places where taking the old surface road is slightly shorter but not faster. If we list all of those we're idiots.

I think the OP is looking for the more 'off the regular routing'. For instance, US11 may be shorter than I-81 in places, but it's the same general routing. if I-81 were to branch off to DC and then up what is I-83, we could say US11 was the short way.