I was thinking about asking a few weeks ago about US highways that didn't have an interchange with an interstate. But then I looked at my local US highway...US 80 (aka the Dixie-Overland Highway). I counted many places where it didn't interchange with I-20 because, well....it just wasn't necessary. That includes 2 places between Shreveport & Dixie Inn (exit 44) where I-20 flies over US 79/80 (which happens to be a 4-lane divided road).
Another example is where US 79/80 fly over the West end of I-220. There is no exit due to the fact that there is no room for ramps because it is so close to the I-20 exit ramps.
So that got me thinking: is there anywhere that 2 interstates cross, one flying over the other, and there are absolutely no ramps connecting the two? Perhaps because of space limitations?
I know that I-42 when it gets built, it will not interchange with I-95.
I-57 and I-294 in IL, but that is now partially changed.
Infamously, for now at least, I-95 and I-276.
If you consider the Jersey Turnpike's extension over to Pennsylvania to be I-95, then I-95 and I-295 in New Jersey qualify.
Two in the Baltimore area are I-895@I-195 and I-895@I-95(just north of the harbor tunnels).
Until recently, you had I-84 and I-87. And of course, there's I-587, which doesn't even connect to another interstate.
I-90 and I-391 in Chicopee, MA.
Quote from: roadman65 on March 26, 2018, 08:23:33 PM
I know that I-42 when it gets built, it will not interchange with I-95.
I wouldn't be so quick to jump the gun. There's a feasibility study currently underway for that stretch of US-70, which includes a possible direct I-42/I-95 interhange. I seriously doubt NCDOT would want to keep a semi-Breezewood.
Amongst others...
- I-81/I-476 on the southwest side of Scranton, PA
- I-78/I-476 near Allentown, PA
- If future plans come to fruition, I-22/I-422 outside Birmingham, AL
When I read the topic title, I took it literally, not in reference to individual crossings.
With that said, is something like this (https://www.google.com/maps/@41.2525861,-81.5855804,16z), I-271 and I-80 near Cleveland, what you're looking for? They both have interchanges with other interstates, at other points along their respective corridors, but definitely not at that particular crossing.
US highway crossings with no exit tend to be much more common. Here's a double-whammie (https://www.google.com/maps/@42.7629921,-78.820559,15.88z) where both US 20 and US 62 cross the Thruway inside half a mile and neither gets an exit. I guess a US highway - toll road crossing is the ultimate example, at least in terms of frequency.
Quote from: froggie on March 26, 2018, 09:27:03 PM
- I-81/I-476 on the southwest side of Scranton, PA
Of course! :pan:
Knew I was forgetting at least one obvious PA example.
I-80/90 and I-475 outside Toledo.
Does Breezewood count? There are ramps and US 30, but no direct Turnpike to Freeway Ramps (as everyone around these parts knows)
Quote from: ilpt4u on March 27, 2018, 01:32:37 AM
Does Breezewood count? There are ramps and US 30, but no direct Turnpike to Freeway Ramps (as everyone around these parts knows)
I have only read about Breezewood. I have seen pictures...and from what I have seen, I don't want to count it because it isn't really a freeway-grade highway. That is only my opinion...I will cede the official decision to those of you who are more "in the know" about this area.
Technically, I-99 Pennsylvania doesn't have any interchanges with other interstates.
Years ago, the Ohio Turnpike didn't have a direct connection to I-75 or I-77. Both have been remedied.
Quote from: hbelkins on March 27, 2018, 12:23:32 PM
Technically, I-99 Pennsylvania doesn't have any interchanges with other interstates.
Yes, although I remember reading somewhere that they want to make the I-80 interchange a free-flowing one eventually, pending funding. They might have applied for a federal grant too, IIRC.
I-587 (NY)
I don't think I-585 has been mentioned yet. It has an interchange with BL-85 (former I-85), but none with any current mainline Interstate.
I was under the impression that an actual crossing had to exist.
I-587 (and I-585) don't even have crossings where you'd expect an exit for another interstate. As such, they are really part of a separate discussion about interstates that don't connect to the system at all. Ditto for I-99.
Quote from: ilpt4u on March 27, 2018, 01:32:37 AM
Does Breezewood count? There are ramps and US 30, but no direct Turnpike to Freeway Ramps (as everyone around these parts knows)
A road that does not intersect itself
Quote from: texaskdog on March 27, 2018, 08:08:38 PM
Quote from: ilpt4u on March 27, 2018, 01:32:37 AM
Does Breezewood count? There are ramps and US 30, but no direct Turnpike to Freeway Ramps (as everyone around these parts knows)
A road that does not intersect itself
One could argue that Freeway I-70 and the Turnpike are separate Roadways...but then again so would any Turn On/Turn Off arrangement.
Point taken. Breezewood is a no-go!
Quote from: webny99 on March 27, 2018, 08:07:10 PM
I was under the impression that an actual crossing had to exist.
I-587 (and I-585) don't even have crossings where you'd expect an exit for another interstate. As such, they are really part of a separate discussion about interstates that don't connect to the system at all. Ditto for I-99.
According to the
content of the OP, yes. The title is asking something completely different, and it would include I-99, I-585, and I-587.
Quote from: hbelkins on March 27, 2018, 12:23:32 PM
Technically, I-99 Pennsylvania doesn't have any interchanges with other interstates.
Literally, no direct interchanges with other Interstates.
The US-15 / Future I-99 section does, but that is not signed as I-99 yet.
Quote from: mvak36 on March 27, 2018, 01:42:43 PM
Quote from: hbelkins on March 27, 2018, 12:23:32 PM
Technically, I-99 Pennsylvania doesn't have any interchanges with other interstates.
Yes, although I remember reading somewhere that they want to make the I-80 interchange a free-flowing one eventually, pending funding. They might have applied for a federal grant too, IIRC.
I-99 ends about 0.5 mile south of I-80, and PA-26 makes the connection to I-80. The two highways I-99 and PA-26 connect seamlessly.
I-81 and I-76.
I-80/90 and I-475 near Toledo. There's a signed Breezewood requiring about a mile on local streets.
I-22 and I-422 may not intersect directly, but I-222 will be a glorified quadrant road, so it'll be like a toll road interchange minus the toll booth.
Quote from: 1 on March 27, 2018, 08:10:58 PM
Quote from: webny99 on March 27, 2018, 08:07:10 PM
I was under the impression that an actual crossing had to exist.
I-587 (and I-585) don't even have crossings where you'd expect an exit for another interstate. As such, they are really part of a separate discussion about interstates that don't connect to the system at all. Ditto for I-99.
According to the content of the OP, yes. The title is asking something completely different, and it would include I-99, I-585, and I-587.
I will say this though: I now understand much better than before what the big deal is with these interstates that I have been reading about here for so many years. Now I-99 is an even bigger form of evil (in my mind) than before. I didn't know there was such a thing as interstates out in the middle of nowhere in the interstate universe. Mind...blown.
Quote from: Beltway on March 27, 2018, 10:26:09 PM
Literally, no direct interchanges with other Interstates.
The US-15 / Future I-99 section does, but that is not signed as I-99 yet.
In New York, I do believe I-99 IS signed at it's interchange with I-86.
Quote from: Mr_Northside on March 28, 2018, 03:48:29 PM
Quote from: Beltway on March 27, 2018, 10:26:09 PM
Literally, no direct interchanges with other Interstates.
The US-15 / Future I-99 section does, but that is not signed as I-99 yet.
In New York, I do believe I-99 IS signed at its interchange with I-86.
It is and it has been since around when it opened.
Until relatively recently, I-76/79 was a Breezewood. We can also argue about whether or not I-76 and I-376 interchange directly in Big Beaver, as that's technically a Breezewood, too.
As it currently stands, I *THINK* the only Interstates without a direct freeway connection to the rest of the system are I-99 PA, I-180 WY, and I-587 NY (debatable, you could count the slip ramp as a direct ramp to I-87). I-176 met this until a direct interchange was built to eliminate the Breezewood.
Quote from: Mr_Northside on March 28, 2018, 03:48:29 PM
Quote from: Beltway on March 27, 2018, 10:26:09 PM
Literally, no direct interchanges with other Interstates.
The US-15 / Future I-99 section does, but that is not signed as I-99 yet.
In New York, I do believe I-99 IS signed at it's interchange with I-86.
Separate segment from the current PA I-99.
When they sign US-15 into PA I-99, it will have a direct interchange with I-180.
Quote from: cl94 on March 28, 2018, 03:57:44 PM
As it currently stands, I *THINK* the only Interstates without a direct freeway connection to the rest of the system are I-99 PA, I-180 WY, and I-587 NY (debatable, you could count the slip ramp as a direct ramp to I-87). I-176 met this until a direct interchange was built to eliminate the Breezewood.
2/69C/69E is an isolated cluster.
Quote from: cl94 on March 28, 2018, 03:57:44 PM
I-587 NY (debatable, you could count the slip ramp as a direct ramp to I-87)
In that case, I-790 is in the same league.
Quote from: vdeane on March 28, 2018, 10:03:53 PM
Quote from: cl94 on March 28, 2018, 03:57:44 PM
I-587 NY (debatable, you could count the slip ramp as a direct ramp to I-87)
In that case, I-790 is in the same league.
No, I-790 has an Interstate-grade connection heading onto I-90. Heading off is a full Breezewood. That may be the one case where upgrading from super 2 to full freeway actually made the connection LESS freeway-grade.
Quote from: LM117 on March 26, 2018, 09:12:34 PM
Quote from: roadman65 on March 26, 2018, 08:23:33 PM
I know that I-42 when it gets built, it will not interchange with I-95.
I wouldn’t be so quick to jump the gun. There’s a feasibility study currently underway for that stretch of US-70, which includes a possible direct I-42/I-95 interhange. I seriously doubt NCDOT would want to keep a semi-Breezewood.
Where do they build. The area is built up right to the interstate? They would have to buy out many businesses out to accomplish that task and with that ever being done would take till at least 2030 to do.
The Interstate 78 and Interstate 476 thing would always have been a miss for the interstate, at one time wasn't what is 22 (that goes to the turnpike) going to be 78 itself, with current day 78 being a 3di?
Quote from: roadman65 on March 29, 2018, 07:26:38 PM
Quote from: LM117 on March 26, 2018, 09:12:34 PM
Quote from: roadman65 on March 26, 2018, 08:23:33 PM
I know that I-42 when it gets built, it will not interchange with I-95.
I wouldn’t be so quick to jump the gun. There’s a feasibility study currently underway for that stretch of US-70, which includes a possible direct I-42/I-95 interhange. I seriously doubt NCDOT would want to keep a semi-Breezewood.
Where do they build. The area is built up right to the interstate? They would have to buy out many businesses out to accomplish that task and with that ever being done would take till at least 2030 to do.
Don't be so quick to judge (https://www.aaroads.com/forum/index.php?topic=18652.0)...
Quote from: froggie on March 30, 2018, 08:51:19 AM
Quote from: roadman65 on March 29, 2018, 07:26:38 PM
Quote from: LM117 on March 26, 2018, 09:12:34 PM
Quote from: roadman65 on March 26, 2018, 08:23:33 PM
I know that I-42 when it gets built, it will not interchange with I-95.
I wouldn't be so quick to jump the gun. There's a feasibility study currently underway for that stretch of US-70, which includes a possible direct I-42/I-95 interhange. I seriously doubt NCDOT would want to keep a semi-Breezewood.
Where do they build. The area is built up right to the interstate? They would have to buy out many businesses out to accomplish that task and with that ever being done would take till at least 2030 to do.
Don't be so quick to judge (https://www.aaroads.com/forum/index.php?topic=18652.0)...
To add to this, I would also wager that there would be a great deal of support from Smithfield/Selma for a direct interchange since it would keep thru traffic changing interstates from mingling with local traffic and clogging up US-70, which has 5 traffic lights between both ends of the current US-70 Bypass. I've been through there numerous times when I lived in Goldsboro and it can get really congested there, especially with trucks. I'd love to see the interchange built.
Quote from: cl94 on March 28, 2018, 10:47:24 PM
Quote from: vdeane on March 28, 2018, 10:03:53 PM
Quote from: cl94 on March 28, 2018, 03:57:44 PM
I-587 NY (debatable, you could count the slip ramp as a direct ramp to I-87)
In that case, I-790 is in the same league.
No, I-790 has an Interstate-grade connection heading onto I-90. Heading off is a full Breezewood. That may be the one case where upgrading from super 2 to full freeway actually made the connection LESS freeway-grade.
I-587 has a ramp bypassing the roundabout to the Thruway, so it's the same situation: freeway connection heading to its parent, not a freeway connection heading from the parent to the child. Unless you're actually arguing on the basis that the roundabout is easier to handle than making three right turns in quick succession.
Quote from: LM117 on March 30, 2018, 09:16:55 AM
Quote from: froggie on March 30, 2018, 08:51:19 AM
Quote from: roadman65 on March 29, 2018, 07:26:38 PM
Quote from: LM117 on March 26, 2018, 09:12:34 PM
Quote from: roadman65 on March 26, 2018, 08:23:33 PM
I know that I-42 when it gets built, it will not interchange with I-95.
I wouldn't be so quick to jump the gun. There's a feasibility study currently underway for that stretch of US-70, which includes a possible direct I-42/I-95 interhange. I seriously doubt NCDOT would want to keep a semi-Breezewood.
Where do they build. The area is built up right to the interstate? They would have to buy out many businesses out to accomplish that task and with that ever being done would take till at least 2030 to do.
Don't be so quick to judge (https://www.aaroads.com/forum/index.php?topic=18652.0)...
To add to this, I would also wager that there would be a great deal of support from Smithfield/Selma for a direct interchange since it would keep thru traffic changing interstates from mingling with local traffic and clogging up US-70, which has 5 traffic lights between both ends of the current US-70 Bypass. I've been through there numerous times when I lived in Goldsboro and it can get really congested there, especially with trucks. I'd love to see the interchange built.
They probably will close the US 70 interchange just north of this.
^ I doubt that. Because you will have then eliminated access from the main travelshed that most of the businesses at that interchange rely upon.
I am not saying not to build it, but with the US 70 interchange being just north of it you are going to need braided ramps which takes up right of ways and with the buy out of land from developers, even with eminent domain still takes years to process.
US 70 has many businesses that rely on the interchange unlike old US 74 where NCDOT was able to close it due to lack of many businesses at the former location. Flat out, Selma is a hugely developed area and along with Smithfield it holds a lot of population as well.
Quote from: roadman65 on March 31, 2018, 04:58:57 AM
I am not saying not to build it, but with the US 70 interchange being just north of it you are going to need braided ramps which takes up right of ways and with the buy out of land from developers, even with eminent domain still takes years to process.
No...what you were saying is that "so much right of way would be needed" that it would either take forever to build or would be built without a direct connection. And then I showed you a theoretical design that would build a direct connection and
*NOT* take so much right-of-way, thus preserving most of the businesses. Conveniently, you ignored that...
How about I-69 in Kentucky? Doesn't it only intersect with Kentucky's parkways?
^ No. It intersects and has a concurrency with I-24.