I know I-4 is a freeway at both ends. Anyone know others?
Virtually every Interstate ends as a freeway. A notable exception is I-180 in WY, since it's not a freeway at all.
I-35 is a notable one for ending as a non-freeway at both termini.
Quote from: TheHighwayMan394 on September 14, 2021, 06:24:49 PM
I-35 is a notable one for ending as a non-freeway at both termini.
Does the Interstate end where the freeway ends? Or does it continue on for a few yards?
There are some other Interstates that end on or near bridges where the bridge itself is not a freeway, but it is part of the system.
I-90 ends as a freeway
I-78 in Jersey City / New York.
Quote from: TheHighwayMan394 on September 14, 2021, 06:24:49 PM
I-35 is a notable one for ending as a non-freeway at both termini.
Think more interesting would be interstates that terminate not as a freeway(like I-43 south in Beloit....or soon to be formerly on this list depending how construction is going)
Quote from: GaryV on September 14, 2021, 06:23:48 PM
Virtually every Interstate ends as a freeway. A notable exception is I-180 in WY, since it's not a freeway at all.
It's a post by NE2...
Whoa, people took this seriously?
If you exclude all termini that aren't at a full freeway junction it could be mildly interesting, but still a lot more that do than don't.
All of them.
I'm pretty sure that an Interstate highway ends where the freeway ends in almost every case. The stupid I-180 and I-587 and things like that are exceptions but I-180 in Wyoming isn't even an Interstate to begin with.
I think the epitome of this is US-75 completing I-45
Quote from: Flint1979 on September 14, 2021, 08:06:31 PM
All of them.
I-75 in Sault Ste. Marie ends as a 2-lane bridge on the Canadian border.
I-280 North in San Francisco does NOT end as a freeway, who knew? Instead it becomes King Street just south of AT&T Park and The Embarcadero, which are both 4-lane divided surface streets, or Sixth street which is 4-lane but undivided.
I-70 East ends at a Park and Ride or at a freeway depending on who you ask!
I-19 in Nogales AZ continues a bit past West Street to end at Crawford Street, about three blocks away.
Quote from: Flint1979 on September 14, 2021, 08:07:58 PM
I'm pretty sure that an Interstate highway ends where the freeway ends in almost every case.
I'm glad you said "almost." How about we make a list of Interstates that end
before the freeway ends? In other words, Interstates that continue as non-Interstate freeways.
I-39, northern terminus
I-45, northern terminus (or I-345, if you prefer)
I-49, northern terminus
I-64, western terminus
I-72, western terminus
I-76 (East), eastern terminus
I-135, northern terminus
I-210 (California), eastern terminus (why?)
I-235 (Kansas), northern terminus
I-287, southern terminus
Granted, there is quite a bit of variation in how long these continue as freeways before becoming expressways or terminating entirely. In some cases, it makes sense to end the Interstate designation at another Interstate, when the freeway only continues for a few more miles before petering out as an expressway or a surface road. In other cases, it seems more arbitrary.
Quote from: Ned Weasel on September 14, 2021, 08:45:31 PM
Quote from: Flint1979 on September 14, 2021, 08:07:58 PM
I'm pretty sure that an Interstate highway ends where the freeway ends in almost every case.
I'm glad you said "almost." How about we make a list of Interstates that end before the freeway ends? In other words, Interstates that continue as non-Interstate freeways.
I-39, northern terminus
I-45, northern terminus (or I-345, if you prefer)
I-49, northern terminus
I-64, western terminus
I-72, western terminus
I-76 (East), eastern terminus
I-135, northern terminus
I-210 (California), eastern terminus (why?)
I-235 (Kansas), northern terminus
I-287, southern terminus
Granted, there is quite a bit of variation in how long these continue as freeways before becoming expressways or terminating entirely. In some cases, it makes sense to end the Interstate designation at another Interstate, when the freeway only continues for a few more miles before petering out as an expressway or a surface road. In other cases, it seems more arbitrary.
Don't forget about I-794, which downgrades to a Wisconsin state road, remains a substandard freeway for one exit, has a light at the next, has two more exits as a substandard freeway, and ends at a signal by the airport.
Or I-255 in Illinois, which mysteriously downgrades to an Illinois state road without changing numbers or standards after crossing I-55 at its northern terminus.
Quote from: Hobart on September 14, 2021, 08:59:44 PM
Or I-255 in Illinois, which mysteriously downgrades to an Illinois state road without changing numbers or standards after crossing I-55 at its northern terminus.
That's a good example that I did indeed forget about. But I also got kind of tired and decided to cap my list at 10 before making it an exhaustive search.
Quote from: Hobart on September 14, 2021, 08:59:44 PM
Quote from: Ned Weasel on September 14, 2021, 08:45:31 PM
Quote from: Flint1979 on September 14, 2021, 08:07:58 PM
I'm pretty sure that an Interstate highway ends where the freeway ends in almost every case.
I'm glad you said "almost." How about we make a list of Interstates that end before the freeway ends? In other words, Interstates that continue as non-Interstate freeways.
I-39, northern terminus
I-45, northern terminus (or I-345, if you prefer)
I-49, northern terminus
I-64, western terminus
I-72, western terminus
I-76 (East), eastern terminus
I-135, northern terminus
I-210 (California), eastern terminus (why?)
I-235 (Kansas), northern terminus
I-287, southern terminus
Granted, there is quite a bit of variation in how long these continue as freeways before becoming expressways or terminating entirely. In some cases, it makes sense to end the Interstate designation at another Interstate, when the freeway only continues for a few more miles before petering out as an expressway or a surface road. In other cases, it seems more arbitrary.
Don't forget about I-794, which downgrades to a Wisconsin state road, remains a substandard freeway for one exit, has a light at the next, has two more exits as a substandard freeway, and ends at a signal by the airport.
Or I-255 in Illinois, which mysteriously downgrades to an Illinois state road without changing numbers or standards after crossing I-55 at its northern terminus.
I-474 continues as the IL 6 freeway north of I-74 in Peoria, IL
Quote from: Ned Weasel on September 14, 2021, 08:45:31 PM
Quote from: Flint1979 on September 14, 2021, 08:07:58 PM
I'm pretty sure that an Interstate highway ends where the freeway ends in almost every case.
I'm glad you said "almost." How about we make a list of Interstates that end before the freeway ends? In other words, Interstates that continue as non-Interstate freeways.
I-39, northern terminus
I-45, northern terminus (or I-345, if you prefer)
I-49, northern terminus
I-64, western terminus
I-72, western terminus
I-76 (East), eastern terminus
I-135, northern terminus
I-210 (California), eastern terminus (why?)
I-235 (Kansas), northern terminus
I-287, southern terminus
Granted, there is quite a bit of variation in how long these continue as freeways before becoming expressways or terminating entirely. In some cases, it makes sense to end the Interstate designation at another Interstate, when the freeway only continues for a few more miles before petering out as an expressway or a surface road. In other cases, it seems more arbitrary.
I'd also add the following:
I-15 (California), southern terminus
I-22 (Mississippi), western terminus
I-37 (Texas), northern terminus
I-44 (Texas), southern terminus
I-110 (California), northern terminus
I-255 (Illinois), northern terminus
I-269 (Tennessee), northern terminus
I-470 (Missouri), eastern terminus
I-470 (Kansas), eastern terminus (if we consider the K-4 super 2 to be the logical I-470 extension and the turnpike connection to I-70 to be ramps)
I-480 (Ohio), western terminus
I-480 (Nebraska), western terminus
I-880 (California), southern terminus
Quote from: ztonyg on September 14, 2021, 09:25:51 PM
I-470 (Kansas), eastern terminus (if we consider the K-4 super 2 to be the logical I-470 extension and the turnpike connection to I-70 to be ramps)
I wouldn't include this one, personally. The I-470 mainline continues as the Kansas Turnpike, which becomes part of I-70 at that point.
I-80 west end ends at US-101 Bayshore to Central in San FranciscoI-680 ends as a freeway on both ends.
US-61 is an expressway north of I-70, not a freeway.
But I guess *technically* the freeway does extend about 10 blocks or so north, as there are 2 interchanges close together before the first surface intersection.... 🤔
Quote from: DJ Particle on September 14, 2021, 11:55:46 PM
US-61 is an expressway north of I-70, not a freeway.
But I guess *technically* the freeway does extend about 10 blocks or so north, as there are 2 interchanges close together before the first surface intersection.... 🤔
The question is: where do you draw the line to define this new category we've come up with?
Quote from: Ned Weasel on September 15, 2021, 06:37:59 AM
Quote from: DJ Particle on September 14, 2021, 11:55:46 PM
US-61 is an expressway north of I-70, not a freeway.
But I guess *technically* the freeway does extend about 10 blocks or so north, as there are 2 interchanges close together before the first surface intersection.... 🤔
The question is: where do you draw the line to define this new category we've come up with?
You don't draw the line. FritzOwl does.
I-394, continues as the US 12 freeway for about five miles to Long Lake, then a s a super 2 for a few more miles bypassing Long Lake.
Quote from: GaryV on September 14, 2021, 06:23:48 PM
Virtually every Interstate ends as a freeway. A notable exception is I-180 in WY, since it's not a freeway at all.
Source?
I-190 as ON 405
I-390 as NY 390
I-590 as NY 590
I-690 as NY 690
I-790 as NY 8/12
I-890 as NY 890
I-481 as NY 481
I-787 as NY 787 or NY 7 (depending on your take)
I-290 in MA as a short connector to MA 85
I-495 as MA 25
I-395 as FL 836
I-95 as NB 95
I-91 as A-55
I-87 as A-15
Quote from: Ned Weasel on September 14, 2021, 08:45:31 PM
How about we make a list of Interstates that end before the freeway ends? In other words, Interstates that continue as non-Interstate freeways.
I-235 (Kansas), northern terminus
I-235 (Oklahoma), northern terminus, too.
I-235 (Iowa)
also ends and continues as a freeway on both ends, though in this case the freeway continues as a 2di, so it technically doesn't qualify for this list.
Quote from: thspfc on September 15, 2021, 03:38:01 PM
Quote from: GaryV on September 14, 2021, 06:23:48 PM
Virtually every Interstate ends as a freeway. A notable exception is I-180 in WY, since it's not a freeway at all.
Source?
I'll help him on that one:
https://www.aaroads.com/west/i-180_wy.html
or
https://www.interstate-guide.com/i-180-wy/
I-280 near Toledo ends onto a state highway (OH-420), which is not a potato.
Who renamed this thread "potatoes?"
At any rate, I-265 in Kentucky's western terminus is at I-65. The freeway continues as KY 841. KY 841 ends at US 31W/US 60 but the route continues as a surface highway under another number.
I-471 officially ends at I-275. The freeway continues as unsigned KY 471 a short distance to intersect US 27 at a traffic signal.
PO TAE TOES!
tomato
Quote from: hbelkins on September 15, 2021, 09:15:32 PM
Who renamed this thread "potatoes?"
The thread title is the title of the OP. The only people with permission to edit the OP are the OP and admins/mods. Take a guess.
Quote from: jp the roadgeek on September 15, 2021, 06:36:53 PM
I-190 as ON 405
I-390 as NY 390
I-590 as NY 590
I-690 as NY 690
I-790 as NY 8/12
I-890 as NY 890
I-481 as NY 481
I-787 as NY 787 or NY 7 (depending on your take)
I-290 in MA as a short connector to MA 85
I-495 as MA 25
I-395 as FL 836
I-95 as NB 95
I-91 as A-55
I-87 as A-15
More "interstates ending before the freeway does" examples -
I-10 west terminus as Route 1 (which has one exit west of Lincoln Boulevard)
I-27 south terminus continuing as US 87
I-75 south terminus continuing as Florida SR 924
I-980 east terminus feeding into Route 24
I-270 in Colorado west terminus continuing into US 36/Denver-Boulder Turnpike
Quote from: 1 on September 15, 2021, 09:21:29 PM
Quote from: hbelkins on September 15, 2021, 09:15:32 PM
Who renamed this thread "potatoes?"
The thread title is the title of the OP. The only people with permission to edit the OP are the OP and admins/mods. Take a guess.
This may help
(https://i.imgur.com/9WpyrBC.png)
Quote from: jp the roadgeek on September 15, 2021, 06:36:53 PM
I-91 as A-55
Not quite....there is a surface intersection with QC-247 just north of the border station. However, A-55 *is* a freeway after that.
https://www.google.com/maps/place/Vermont/@45.0078805,-72.0876064,549m/data=!3m1!1e3!4m5!3m4!1s0x4cb4dc6c48daceff:0x264d897436546bb4!8m2!3d44.5588028!4d-72.5778415
I-290 into IL-53, north/west end
Quote from: DJ Particle on September 15, 2021, 11:34:41 PM
Quote from: jp the roadgeek on September 15, 2021, 06:36:53 PM
I-91 as A-55
Not quite....there is a surface intersection with QC-247 just north of the border station. However, A-55 *is* a freeway after that.
https://www.google.com/maps/place/Vermont/@45.0078805,-72.0876064,549m/data=!3m1!1e3!4m5!3m4!1s0x4cb4dc6c48daceff:0x264d897436546bb4!8m2!3d44.5588028!4d-72.5778415
...except for the Chemin Curtis intersection (https://www.google.com/maps/@45.0511977,-72.0832563,271m/data=!3m1!1e3?hl=en).
Quote from: jp the roadgeek on September 15, 2021, 06:36:53 PM
I-190 as ON 405
I-390 as NY 390
I-590 as NY 590
I-690 as NY 690
I-790 as NY 8/12
I-890 as NY 890
I-481 as NY 481
I-787 as NY 787 ...
Upstate NY wins this exercise.
Quote from: LilianaUwU on September 16, 2021, 01:14:19 AM
Quote from: DJ Particle on September 15, 2021, 11:34:41 PM
Quote from: jp the roadgeek on September 15, 2021, 06:36:53 PM
I-91 as A-55
Not quite....there is a surface intersection with QC-247 just north of the border station. However, A-55 *is* a freeway after that.
https://www.google.com/maps/place/Vermont/@45.0078805,-72.0876064,549m/data=!3m1!1e3!4m5!3m4!1s0x4cb4dc6c48daceff:0x264d897436546bb4!8m2!3d44.5588028!4d-72.5778415
...except for the Chemin Curtis intersection (https://www.google.com/maps/@45.0511977,-72.0832563,271m/data=!3m1!1e3?hl=en).
Good catch! I forgot about this one.
All of them except I-180, I-78 and possibly I-81.
Quote from: Roadgeekteen on September 16, 2021, 12:58:27 PM
All of them except I-180, I-78 and possibly I-81.
I-78 is still technically a freeway on the east end of the tunnel. Doesn't it have like 4 exits (with VERY short offramps) within 2 blocks?
And as for I-81, do the median crossings at the border checks really count?
Quote from: DJ Particle on September 16, 2021, 11:20:00 PM
Quote from: Roadgeekteen on September 16, 2021, 12:58:27 PM
All of them except I-180, I-78 and possibly I-81.
I-78 is still technically a freeway on the east end of the tunnel. Doesn't it have like 4 exits (with VERY short offramps) within 2 blocks?
And as for I-81, do the median crossings at the border checks really count?
Oops I was thinking about the New Jersey side.