States with most "intra-state" IH highways

[jgb191]

I've tried looking for a topic like this, but couldn't find it, that's why I started it today.

Which state(s) have the most "intrastate" highways, located within a state?  Either in terms of number of highways or total mileage.

I do believe California is far and away the leader in both categories.  All of CA's intrastates are triple-digit interstates.  I also believe that New York and Illinois round out the top three leaders in both categories.

[Scott5114]

Additionally, which state has the most intrastate 2dis? I know Texas has 3, I-27, I-37, and I-45...does NY have more?

[jgb191]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

[jdb1234]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

If I'm not mistaken, I believe I-57 and I-72 both enter Missouri.

[mukade]

Also, I-86 is enters PA so it isn't an "intrastate".

I think the following are, though: I-4 is in FL only, I-16 is in GA only, I-17 is in AZ only, I-19 is in AZ only, I-43 is in WI only, I-49 is in LA only (for now), I-96 is in MI only, I-97 is in MD only. And then there are the ones in Hawaii.

[oscar]

Also, I-86 is enters PA so it isn't an "intrastate".

I think the following are, though: I-4 is in FL only, I-16 is in GA only, I-17 is in AZ only, I-19 is in AZ only, I-43 is in WI only, I-49 is in LA only (for now), I-96 is in MI only, I-97 is in MD only. And then there are the ones in Hawaii.

And the paper Interstates in Alaska (four of them, A-1 through A-4).  Puerto Rico has three (PRI-1 through PRI-3), though it isn't a state. 

[Brandon]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

Illinois used to have I-49, I-72, and I-88 (W), and wanted a northern I-37, but is whittled down to just I-88 (W) now.  I-57 and I-72 enter Missouri (just barely in the case of I-72), and I-39 got extended to Wisconsin.

3dis don't count for intrastate interstates as they're meant to be intrastate interstates.

[froggie]

Not mentioned yet:  Louisiana also has the oft-maligned I-12.

[NE2]

Are there any ATM machines on these IH highways?

[Scott5114]

Are there any ATM machines on these IH highways?

If there were you'd have to use your PIN number.

[jgb191]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

Illinois used to have I-49, I-72, and I-88 (W), and wanted a northern I-37, but is whittled down to just I-88 (W) now.  I-57 and I-72 enter Missouri (just barely in the case of I-72), and I-39 got extended to Wisconsin.

Can you elaborate on the I-49 and I-37?  Were they supposed to be a continuation of the current I-49 (LA) and I-37 (TX)?

3dis don't count for intrastate interstates as they're meant to be intrastate interstates.

Sure they count.  The 3-digits can also cross state lines....Kansas City is a prime example since it's located in two neighboring states (KS and MO).  And many other cities/metros are located on state lines and their loops can circle around them crossing state lines.

[Alex]

I have them all listed by state here: http://www.interstate-guide.com/state-index.html

[jgb191]

Yeah I was wrong about I-57, I thought it was entirely in Illinois.  It looks like I-72 and I-88 are within Illinois....forgive me but I have a very old version of the map with me.  I-39 also looks to be in an intrastate since it spans from Bloomington/Normal at the I-74 junction to Rockford at the I-90 junction.

If that's the case (and I can be wrong), then Illinois has a total of about 700 miles of intrastate highways also counting the 3-digit intrastates in IL (including Chicagoland).

My homestate of Texas also has a total of 712 miles of intrastates.  New York also looks to have at least 700 total miles (probably a lot more than 700).

[thenetwork]

Illinois used to have I-49, I-72, and I-88 (W), and wanted a northern I-37, but is whittled down to just I-88 (W) now. 

Are we counting I-88 an intrastate, even though there are two separate alignments?  And if so, would the I-35E/I-35W alignments in Minnesota & Texas count as well??

And if so, I nominate I-76 (western) as the closest-but-no-cigar intrastate in the US.  If it weren't for that 2-1/2 miles in Nebraska!!! 

[oscar]

Yeah I was wrong about I-57, I thought it was entirely in Illinois.  It looks like I-72 and I-88 are within Illinois....forgive me but I have a very old version of the map with me.  I-39 also looks to be in an intrastate since it spans from Bloomington/Normal at the I-74 junction to Rockford at the I-90 junction.

Time to update your map -- I-72 has crossed the river to Hannibal MO, and I-39 has extended to Wausau WI (with a triplex with I-90/94 north of Madison), for many years.

My homestate of Texas also has a total of 712 miles of intrastates.  New York also looks to have at least 700 total miles (probably a lot more than 700).

FWIW (and it's not worth much), Alaska's entirely intrastate paper Interstate network covers about 1,082 miles.

[3467]

I-88 is just short of Iowa by a couple of miles. If the IDOTs took my solution it would extend into Iowa and replace 380/US 20 to give Iowa another 2di

There are still some 3dis left only in Illinois. 39 originally was an intrastate between 80 and 90 which should give hope to those who want another 2di in Northeast Illinois. I 43 in WI also nearly touches Illinois. There have been a number of 43 extension suggestions in fictional highways to extend it.

Considering the location of Illinois it is not suprising that it is hard to maintain an intrastate

[oscar]

I nominate I-76 (western) as the closest-but-no-cigar intrastate in the US.  If it weren't for that 2-1/2 miles in Nebraska!!! 

I-72 beats that, with only 2.04 miles in Missouri and the rest in Illinois.

I-66 would be an intrastate, except for that 1.48 miles in D.C.

[vtk]

I-66 would be an intrastate, except for that 1.48 miles in D.C.

It may not be intrastate, but it is unistate, given that DC isn't a state...

[Revive 755]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

Illinois used to have I-49, I-72, and I-88 (W), and wanted a northern I-37, but is whittled down to just I-88 (W) now.  I-57 and I-72 enter Missouri (just barely in the case of I-72), and I-39 got extended to Wisconsin.

Internet has it that Illinois once tried to get I-53 for I-155 and Peoria - I-180 corridors once prior to the northern I-37.

[3467]

I-53 must have been their attempt right after the Kerner Curve. When eventually indicted Gov Otter Kerner suggested routing 55 along 80 and then 180 to 155 and not finishing 55.

I-37 was propsed to FHWA when 155 was almost done  Illinois likes the Blue Shields. They tried for 72 and 172 a long time.
IDOT tried 174 and even had it in some plat book for 34 . I want 188 now

[Brandon]

NY has I-86, I-87, and I-88

IL has I-57, I-72, and I-88

Illinois used to have I-49, I-72, and I-88 (W), and wanted a northern I-37, but is whittled down to just I-88 (W) now.  I-57 and I-72 enter Missouri (just barely in the case of I-72), and I-39 got extended to Wisconsin.

Internet has it that Illinois once tried to get I-53 for I-155 and Peoria - I-180 corridors once prior to the northern I-37.

Why am I not surprised.  BTW, I-49 is a mistake, it's supposed to be I-39.  IDiOT seems to go for an interstate first, ask questions later approach.

[froggie]

It may not be intrastate, but it is unistate, given that DC isn't a state...

It's obviously not within VA or MD jurisdiction, and functions at a state-equivalent (at least as far as FHWA is concerned).

[andytom]

3dis don't count for intrastate interstates as they're meant to be intrastate interstates.

Sure they count.  The 3-digits can also cross state lines....Kansas City is a prime example since it's located in two neighboring states (KS and MO).  And many other cities/metros are located on state lines and their loops can circle around them crossing state lines.

The intent of what he is saying is that 3di's are meant to be short, localized, supporting interstates rather than long distance, primary interstates making them much more likely to be in one state.  This makes 'interstate' 3di's the exception rather than the rule. The fact that a metro area straddles a state line does not change this.   In many a roadgeek eye, this makes 3di's non-counting in this type of question.

[Kacie Jane]

Totally agree with Andytom. 2dis and 3dis are essentially opposites when it comes to interstate/intrastate.  However, the original poster mentioned them in his question and obviously meant to include them.

So, it begs the question, which state has the most (both in number and length) 3dis?

[agentsteel53]

So, it begs the question, which state has the most (both in number and length) 3dis?

my offhand guess would be California.  The San Francisco and Los Angeles metropolitan areas are saturated with 3dis, and there is also 805 in San Diego, and 505 in a rural area.

nearly every x80 is used, including the very long 680 and the somewhat long 280.  also, nearly every x05, including the very long 405.  Then throw in the lengthy 210 and 215.  

if needed to break a tie, add unsigned 305 and roadgeek anathema 238!