Heaviest/Lightest volume interstates

[Fleetwood Mac Attack]

What are they? I've read in multiple places that I-405 in Los Angeles has the highest ADT of any highway in the country. Can anyone confirm this WITH COUNTS? What are the others with super high volumes (I-10 in LA, NJ Turnpike, etc.)?

Where are the lowest volumes on interstates in the U.S.?

[3467]

How about by state? Its a big country.
I might also suggest for those who like a more nuanced analysis: How many of your interstates would warrent being a freeway based on car volume alone?( I mean the mostly rural sections)

In Illinois the lightest Interstates are I-180 -Only 2000,I-72 many sections under 10,000. I -64 eastern sections and I-155 southern sections -all under 10,000 without trucks far less.


The busiest are well known I90/94 The Kennedy and Dan Ryan around 300,000 vpd

[mhallack]

In Maine, my guess would be the I-95 stretch between Lincoln and Houlton. Only traveled it once myself, but I don't remember a lot of cars on it, and trying hard to stay awake!! 

[corco]

I-25 through Wyoming is horribly low volume- I have to imagine traffic counts don't warrant more than a two lane road except through Casper and south of Cheyenne.

[Sykotyk]

Yeah, I-25 from Casper to Buffalo is one dead stretch of road.

[Riverside Frwy]

You guys aren't kidding about I-25:

http://maps.google.com/?ll=41.610858,-104.860549&spn=1.441569,2.364807&t=h&z=9&layer=c&cbll=41.610858,-104.860549&panoid=8Ak0h_Ag4mIaJYr6T6HdOA&cbp=12,221.29,,0,14.53

[mgk920]

I'm not sure which one now had the highest AADT, but ISTR from a few years ago that the lightest volume section was I-15 at the Idaho-Montana state line.

For Wisconsin (an I have not seen any actual recent numbers), the heaviest is likely I-94 near Miller Park in Milwaukee, lightest is likely I-90 between la Crosse and Tomah.

For Illinois, the heaviest is likely the Dan Ryan Expressway (I-90/90) near Comiskey Park in Chicago, the lightest is likely I-180 (I-72 west of Springfield is also pretty light).

Mike

[texaskdog]

Yeah, I-25 from Casper to Buffalo is one dead stretch of road.

Those exits in NE Wyoming on I-90 are funny.  They look almost like a direct right turn, but they had to kind of make them up to freeway standards.

[Chicagosuburban]

For Wisconsin (an I have not seen any actual recent numbers), the heaviest is likely I-94 near Miller Park in Milwaukee

I agree. I was at a Milwaukee Brewers night game and afterwards it was bumper-to-bumper on I-94 at 11pm.

[Zmapper]

Heaviest - I-25 near Park Ave in Denver. Lightest - I-76 at NE border.

[mapman]

Prior to "Carmageddon," I heard news report stating that I-405 through the Sepulveda Pass in L.A. had traffic of around 500,000 vehicles per day.  According to Caltrans, that's not correct -- it's more like half that.  (http://www.dot.ca.gov/hq/traffops/saferesr/trafdata/index.htm)

The busiest portion of I-405 is 374,000 vehicles per day (between CA 22 and I-605 in Orange County), as counted by Caltrans in 2009.  That's probably the busiest section of freeway in California.

[Interstate Trav]

Highest I-10 Santa Monica Freeway,
Lowest I-70 Thru Utah

[3467]

Illinois
Kennedy Expressway(I90/94) 316,000(busiest arterial is IL 83 70,000)
Least busy
I-180 2000
I-72 4700
I-155&I64 have sections 9000 Those are the next lowest volumes

[Duke87]

If I had to guess I'd say 395 is Connecticut's least used interstate. But I could be wrong.

Most used would no doubt be I-95 anywhere south of New Haven.

[Sykotyk]

I'm not sure which one now had the highest AADT, but ISTR from a few years ago that the lightest volume section was I-15 at the Idaho-Montana state line.

Yeah, that and the stretch north of Great Falls is low.

[vtk]

Prior to "Carmageddon," I heard news report stating that I-405 through the Sepulveda Pass in L.A. had traffic of around 500,000 vehicles per day.  According to Caltrans, that's not correct -- it's more like half that. 

The reporter probably added both directions of the highway together.  Or, if the official published figures are already a sum of both directions – are they? – perhaps the reporter mistakenly interpreted them as single-direction figures and doubled them to count both directions.

[ftballfan]

In Michigan
Heaviest: Either I-696 near M-53 or the north-south portion of I-96 near Detroit
Lightest: I-75 between M-134 and M-28

[3467]

Iowa
Heaviest. 74 in QC and 80 Omaha about 70,000(I dont have DesMoines)
Lightest 680 4800 20 if signed between Wtaerloo and 35 would be next @ 7000. Large parts of 35 and 29 are between 11,000 and 15,000
Missouri-
Heaviest Looks like 270 by far with portions hitting 180,000 where MODOT wants to make more lanes@11 feet
Lightest. Looks like 72 in Hannibal @ 8000. Like Iowa parts of 35,29 and the new 49 are in that 11-15,000 range

[tdindy88]

For Indiana:

Heaviest- It's a tossup between the Borman Expressway (80/94) in Northwest Indiana, and the stretch of I-465 from I-70 to I-69 on the Northeast side of Indy.
Lightest- I-64 from I-69/I-164 to around SR 161 to the east and from US 41 west to the state line

[texaskdog]

I realize I cannot make a trip to Illinois now without checking out I-180.

[texaskdog]

Texas....lowest would have to be I-10 just east of I-20.  At least its 80 MPH.

[bassoon1986]

Hmmm  I'd have to check for Louisiana but my guess would be

Lowest: I-49 either between Natchitoches and Alexandria or between Alexandria and Opelousas

Highest: Definitely I-10 in New Orleans, probably at the causeway or near the 610? 

Maybe I-10 around an LSU football game   

Someone from down south confirm these for me haha

[3467]

180 is a a strange route I would recommend the trip. It was built for a steel plant
Illinois is studying a 4 lane connection south along IL 29 to Peoria. It would be IL 29(or 6) not an interstate

[jemacedo9]

In PA (2009 values):

LEAST:
I-86 at the NY line...ADT 5100

Others < 10K
Toll I-376 just north of PA 51,
Toll I-476 at the northern end,
I-90 at the NY line and
I-79 just south of I-90

MOST:
I-95 just north of I-676...ADT 160000

Others over 100K
Philly area I-476, I-276, I-76 S Philly
Pgh - Ft Pitt Tunnel and Br is 126000
Harrisburg - I-81 has 106K and I-83 over the Susquehanna is 124K
Allentown - I-78/PA 309 100K