Most lightly traveled interstate in your state

[Roadgeekteen]

For Massachusetts, it's probably I-91 north of Northampton or maybe I-190.

[ozarkman417]

My bet is on I-155, 9.1k vehicles per day near the MO-TN border.

[Roadgeekteen]

My bet is on I-155, 9.1k vehicles per day near the MO-TN border.

Always wondered why that was built. Doesn't seem to serve any purpose.

[Road Hog]

In Arkansas it has to be the new I-49 in Texarkana north of I-30. Right now it's kind of a road to nowhere as it ends at US 59/71.

[TheHighwayMan3561]

I-94 between downtown Minneapolis and downtown St. Paul, 3 vehicles per day.

[Roadgeekteen]

I-94 between downtown Minneapolis and downtown St. Paul, 3 vehicles per day.

I doubt it.

[hotdogPi]

I-94 between downtown Minneapolis and downtown St. Paul, 3 vehicles per day.

I doubt it.

I thought it might be a road closure, but I'm not seeing anything on Google that would indicate that.

[oscar]

My bet is on I-155, 9.1k vehicles per day near the MO-TN border.

Always wondered why that was built. Doesn't seem to serve any purpose.

Provides another crossing of the Mississippi River -- there's no other crossing between Cairo IL and Memphis, except a ferry.

Also connects I-55 to the future I-69 corridor, which seemed to have a fair amount of traffic every time I drove it even though it's not yet an Interstate.

[ilpt4u]

Pretty sure IL is I-180. Just have a feeling...

[US 89]

Based on 2016 data, Utah's least-traveled interstate is I-70 between exit 99 (Millers Canyon) and 108 (Lone Tree). AADT on that segment is only 3800.

[gonealookin]

There are a few stations on I-80 between US 93 at Wells and the Utah border that report AADT of 5100-5200.

Traveling west to east, AADT on I-80 drops below 10,000 at Fernley and stays that way, except for in the immediate vicinity of towns, for its remaining ~350 miles across Nevada.

[bassoon1986]

In Louisiana the lowest AADT I found was around 15,000 on I-49 just south of the US 84/Mansfield exit.


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[Max Rockatansky]

As a singular route I would imagine I-505 is the big winner in California. 

[Crown Victoria]

For PA, it looks like the least traveled segment of interstate is I-476/PA Turnpike Northeast Extension between the Wyoming Valley and Clarks Summit interchanges with an AADT of 7500.  Completely opposite conditions from I-476's southern reaches as the Blue Route where AADT exceeds 130000!

Also note that I-86 in Erie County PA has an AADT of 9000.

[tdindy88]

For years I always figured that I-64 in Southern Indiana was the lightest traveled, especially west of Evansville. But I-69 from Oakland City (Exit 34) to SR 445 (Exit 110) is all below 10,000 on the most recent AADT.

[Rothman]

For Massachusetts, it's probably I-91 north of Northampton or maybe I-190.

Well, I-91 north of Sunderland, anyway.

I wonder about I-90 in far western MA, too.

[wriddle082]

In SC, the toll portion of I-185 hardly sees any traffic at all, even during pre-pandemic rush hours.

I-520 around North Augusta, SC is pretty lightly travelled as well.  Most of the traffic is on the GA side west of US 25.

[Flint1979]

I-75 in the Upper Peninsula.

[sprjus4]

For Virginia, I-64 west of I-81 gets down to 9,000 AADT. There's no other interstate in the state, including 3dis, that gets that low to my knowledge.

For the most part, thru volumes are usually about 9,000 - 11,000 AADT, reaching up to 20,000 AADT between Clifton Forge and Covington.

[Eth]

I-59 between the Alabama state line and the first exit in Georgia is the lowest in the state at 14,100 AADT as of 2018. The lowest you'll find on anything other than I-59 is right around 20,000 (at the north end of I-185 and along I-16 near Soperton).

[webny99]

Are we talking 2di's only, or could it also be a 3di?

For New York, I think we had established at one point in another thread that it would be I-88, if you're looking at the entire length of the interstate. If you're looking for just a small segment, then I thought I remembered I-87 in the Adirondacks as the winner, but based on a quick check, I-86 in the Southern Tier appears to have a slight edge. It's sustained below 6K per day between Angelica and Almond, while nothing on I-87 falls below that.

[sprjus4]

For North Carolina, it would be I-73 / I-74 north of Rockingham, the lowest point being around 8,500 AADT.

[Roadgeekteen]

Are we talking 2di's only, or could it also be a 3di?

For New York, I think we had established at one point in another thread that it would be I-88, if you're looking at the entire length of the interstate. If you're looking for just a small segment, then I thought I remembered I-87 in the Adirondacks as the winner, but based on a quick check, I-86 in the Southern Tier appears to have a slight edge. It's sustained below 6K per day between Angelica and Almond, while nothing on I-87 falls below that.

Can be either.

[Some one]

Probably I-10 and 20 in West Texas, though I may be wrong on that.

[Roadgeekteen]

Probably I-10 and 20 in West Texas, though I may be wrong on that.

Probably I-10 directly east of I-20.