The "barely serve their state" thread got me to thinking, I-95 in New Hampshire passes through without connecting to the "Interstate network" in the state, even though there are several other Interstates in the state (all of which are connected).
Where else does this happen? Off the top of my head, only I-86 in Pennsylvania and oddities like 684 in Connecticut come to mind, but I'm sure there are others.
(It seems likely that this topic would have been covered by now, btw, but my reasonable search for it was fruitless.)
15 in Arizona
For that matter, the only Interstates that run through Nevada (15 and 80) do not connect to each other in that state, but in Utah.
I-24 and I-59 connect to each other in Georgia, but don't connect to any other interstates in the state.
Could you count I-90 in northern Idaho in this list?
I-275 in Indiana
I-155 in Tennessee
I-10 in Mississippi
I-40/I-27 in Texas
Didn't we just have this thread?
I-78 in NY
I-44 in Texas
I-2/I-69C/I-69E in Texas
Temporarily, I-22 in Alabama
I-81 in West Virginia.
Quote from: NE2 on December 05, 2014, 12:46:14 PM
Didn't we just have this thread?
Couldn't find it if so. There's a thread about short lengths of Interstate in a state–I was asking about parts of any length unconnected to the state's Interstate network.
Quote from: cpzilliacus on December 05, 2014, 01:00:57 PM
I-81 in West Virginia.
I'd also include I-70, because it only connects to I-470 while in WV, and 470 is a loop that only connects to its parent.
Up until the designation of I-69, I-24 in Kentucky would have counted.
Also I-95 and I-495 in the District of Columbia. :bigass:
Ah, I was misremembering what https://www.aaroads.com/forum/index.php?topic=13983 evolved into once it became clear that 684 is the only one.
I-72 in MO
I-64 in IN (at least until I-69 was designated and arguably still so)
I-86 in PA (eastern occurrence at Waverly/South Waverly)
Quote from: clong on December 05, 2014, 01:17:17 PM
I-64 in IN (at least until I-69 was designated and arguably still so)
I-265.
I-535 in WI.
I-72 in MO.
I-155 in TN
I-129 in Nebraska
I-86 connects to I-90 in PA, so I wouldn't count it. That it re-enters the state elsewhere (and it doesn't even do that, yet) doesn't change things in my view.
Quote from: empirestate on December 05, 2014, 05:39:01 PM
I-86 connects to I-90 in PA, so I wouldn't count it. That it re-enters the state elsewhere (and it doesn't even do that, yet) doesn't change things in my view.
You're right. I spaced when I mentioned it. I was thinking of 90 and conflated it with 86. Bad brain day.
A few others not yet mentioned:
-I-22 in Alabama (until sometime in 2015)
-I-22 in Mississippi (ditto).
-I-95 in New Hampshire.
-I-99 in Pennsylvania(?)
-I-49 in Texas.
-I-2/69C/69E in Texas (for now).
-I-66 in Washington, DC.
Which would you count for Nevada, I-80/580 or I-15/215/515?
:hmmm:
Does I-540 enter Oklahoma?
Also, I was also going to say 'I-535 in Wisconsin', but I was beaten to that punch on that one.
Quote from: hbelkins on December 05, 2014, 01:14:08 PMUp until the designation of I-69, I-24 in Kentucky would have counted.
It still does - they're still isolated from the rest of the I-system in KY.
:nod:
Mike
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
A few others not yet mentioned:
-I-22 in Alabama (until sometime in 2015)
-I-22 in Mississippi (ditto).
-I-95 in New Hampshire.
-I-99 in Pennsylvania(?)
-I-49 in Texas.
-I-2/69C/69E in Texas (for now).
-I-66 in Washington, DC.
Which would you count for Nevada, I-80/580 or I-15/215/515?
:hmmm:
Does I-540 enter Oklahoma?
Also, I was also going to say 'I-535 in Wisconsin', but I was beaten to that punch on that one.
Quote from: hbelkins on December 05, 2014, 01:14:08 PMUp until the designation of I-69, I-24 in Kentucky would have counted.
It still does - they're still isolated from the rest of the I-system in KY.
:nod:
Mike
I-99 is a temporary thing, it uses breezewoods.
I-72 in Hannibal MO
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
-I-99 in Pennsylvania(?)
I thought I-99 connected to I-70 / PATP at it's south end? And wouldn't it technically connect to I-80 once the upgrades are complete?
Quote from: Zeffy on December 06, 2014, 12:39:36 AM
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
-I-99 in Pennsylvania(?)
I thought I-99 connected to I-70 / PATP at it's south end? And wouldn't it technically connect to I-80 once the upgrades are complete?
As i said in the post before yours, it is a breezewood situation for now.
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
-I-49 in Texas.
Earlier I was going to mention I-49 in Texas in this thread, but actually, it might not be a candidate here due to the fact that there may be a northern Texarkana loop connecting I-49 & I-30 in Texas. Though I-49 would be going through Texas for a darn brief period, it would have a connection to the interstate system in Texas.
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
A few others not yet mentioned:
...
-I-95 in New Hampshire.
First one on the list!
Quote from: Pete from Boston on December 05, 2014, 11:59:56 AM
The "barely serve their state" thread got me to thinking, I-95 in New Hampshire passes through without connecting to the "Interstate network" in the state, even though there are several other Interstates in the state (all of which are connected).
I-99, to my thinking, connects to the network. I realize that hair-splitting is at the core of any obsessive interest, but I guess I meant roads that have no direct or indirect interchange with another Interstate route. 76, for example, has an exit specifically signed for 99, and the roads actually
cross. For most people's purposes, they connect.
Quote from: Pete from Boston on December 06, 2014, 01:08:09 AM
I-99, to my thinking, connects to the network. I realize that hair-splitting is at the core of any obsessive interest, but I guess I meant roads that have no direct or indirect interchange with another Interstate route. 76, for example, has an exit specifically signed for 99, and the roads actually cross. For most people's purposes, they connect.
I agree. Pennsylvania is loaded with Breezwood type connections. I-99 isn't unique in this regard. If one is going to single out I-99, they might as well say that almost all of PA's interstates aren't connected. I would say that I-99 connects to I-70/76; albeit indirectly. I'd even go so far as to say that it connects to I-80. The two lane segment of US 220 between its current northern terminus and I-80 isn't that far.
Quote from: mgk920 on December 06, 2014, 12:03:53 AM
Does I-540 enter Oklahoma?
No it ends at US 271 in Fort Smith
I-27 and I-40 together in Texas.
A close call that depends on whether the OP's definition of "interstate network" is restricted to, in kurumi's terminology, "proper" interstates, (http://www.kurumi.com/roads/3di/i585.html) or is expansive enough to include business routes, is I-585 in South Carolina.
Quote from: SteveG1988 on December 06, 2014, 12:41:26 AM
As i said in the post before yours, it is a breezewood situation for now.
Wow, we were :05 milliseconds apart. I posted and the "new reply warning" didn't even pop up so I didn't actually see that you posted (I got off after posting).
And yeah, I know that I-99 has a Breezewood going on currently, but Pete from Boston pretty much echoed my feelings on the subject:
Quote from: Pete from Boston on December 06, 2014, 01:08:09 AM
I-99, to my thinking, connects to the network. I realize that hair-splitting is at the core of any obsessive interest, but I guess I meant roads that have no direct or indirect interchange with another Interstate route. 76, for example, has an exit specifically signed for 99, and the roads actually cross. For most people's purposes, they connect.
Yeah, it's a bit wonky you have to use US 220 Business to get to the Turnpike, but it's a short enough distance that I'd qualify it as, at the least an "indirect connection".
The PA Turnpike (I-76) and I-99 do NOT cross. I-99 ends at the exit to old US 220, just north of the turnpike. The road that crosses the turnpike is only US 220.
Quote from: hbelkins on December 06, 2014, 09:57:03 PM
The PA Turnpike (I-76) and I-99 do NOT cross. I-99 ends at the exit to old US 220, just north of the turnpike. The road that crosses the turnpike is only US 220.
I-99 ends at the interchange that connects to I-76. Who cares where the inventoried end is?
Quote from: NE2 on December 06, 2014, 09:58:59 PM
Quote from: hbelkins on December 06, 2014, 09:57:03 PM
The PA Turnpike (I-76) and I-99 do NOT cross. I-99 ends at the exit to old US 220, just north of the turnpike. The road that crosses the turnpike is only US 220.
I-99 ends at the interchange that connects to I-76. Who cares where the inventoried end is?
Yeah, I wasn't talking about technicalities, but rather clear examples (again, think I-95 in NH). But whatever, I've taken as many thread liberties as anyone, so carry on.
Quote from: Pete from Boston on December 05, 2014, 11:59:56 AM
The "barely serve their state" thread got me to thinking, I-95 in New Hampshire passes through without connecting to the "Interstate network" in the state, even though there are several other in the state (all of which are connected).
For one thing, while technically true about not connecting to other interstates, I-95 connects with NH-101 and the Spaulding Turnpike - each of which is a major highway within the state connecting the Merrimack Valley and Lakes Region (respectively) to the NH Seacoast. And 101 connects I-93 and I-95, so it's not as if either one is truly 'isolated'.
As for that original thread, I'll post this there, but I'll add it here: I-95 absolutely serves New Hampshire, pretty much anyone who has ever lived in NH has driven on it multiple times and it's one of the busiest roads in the state. Heck, the New Hampshire Liquor Store on I-95 is the busiest such outlet in the state! Much like I-95 in Delaware, I wouldn't count it.