States with discontinuous Interstate networks

[Mapmikey]

I-585 got extended north, so now it connects with I-85.

Do you have a source for that? I was just up there and I definitely got the sense that 585 did not make it all the way to 85. It connects through Business 85 for sure but there's definitely one at-grade intersection with a stoplight between the US 176 diamond interchange at I-85 and the I-585 freeway. In addition, the exit from 85 is currently signed "US 176 to I-585".

If 585 does connect all the way through to 85, that would make it a very rare example of an interstate with a signalized at-grade intersection.

I've heard this website is good.. 

Chris

The Wiki page ignores its own reference to the highway logmile report (a thing I did not know existed).

The logmile report clearly indicates the north end of I-585 is 0.18 miles north of SC 85 (which is I-85 Bus).

[US 89]

I-585 got extended north, so now it connects with I-85.

Do you have a source for that? I was just up there and I definitely got the sense that 585 did not make it all the way to 85. It connects through Business 85 for sure but there's definitely one at-grade intersection with a stoplight between the US 176 diamond interchange at I-85 and the I-585 freeway. In addition, the exit from 85 is currently signed "US 176 to I-585".

If 585 does connect all the way through to 85, that would make it a very rare example of an interstate with a signalized at-grade intersection.

I've heard this website is good.. 

Chris

The Wiki page ignores its own reference to the highway logmile report (a thing I did not know existed).

The logmile report clearly indicates the north end of I-585 is 0.18 miles north of SC 85 (which is I-85 Bus).

Interesting, because SCDOT has signed 585 pretty well for about a mile past that. The Valley Falls Rd. interchange a little less than a mile north of BL-85 has clear signage in both directions showing I-585 going both north and south. If you get on the ramp to 585 north/176 west, you'll get this reassurance marker (which I can confirm is still there as of January 2021). Heading away from the I-85 diamond, there is a reassurance marker only for US 176 east.

That northbound reassurance past Valley Falls was the northernmost reference to 585 I could find. I know we can't always trust signage for everything, but if we did in this case it would appear 585 ends at the Fairforest Rd light.

[Ryctor2018]

Mississippi - 10 doesn't connect to anything else... intersections with 59 and 55 are in Louisiana.
Missouri - 72 doesn't connect to the rest of the state's network.
Tennessee - 155, until 69 connects, if it ever does...
New York - 78 stubs into Manhattan without any connections to the rest of the system.
Maybe Kentucky? I don't think 69/24/169 connect to the Eastern KY interstates yet, but I vaguely recall some newly designated 3dis that will fill in the gap.

Honorable mention... Washington DC, where 66 doesn't intersect the x95s.

I-569 was signed into law last year. So, on paper the WKPY is now an interstate between I-69 & I-65. No telling how long it will take KY to make the necessary upgrades to sign it in the field.

I remember it being designated up to I-165 but not past that. Did that change? Either way it would still connect to the rest of the state, just a little more crooked.

I-169 will be the Pennyrile Pkwy and I-165 will be the Natcher Pkwy.


iPhone

This is the article on Interstate 569 being signed into law: https://www.14news.com/2020/01/02/proposed-bill-make-w-ky-pkwy-i-spur-passes/

[Mapmikey]

I-585 got extended north, so now it connects with I-85.

Do you have a source for that? I was just up there and I definitely got the sense that 585 did not make it all the way to 85. It connects through Business 85 for sure but there's definitely one at-grade intersection with a stoplight between the US 176 diamond interchange at I-85 and the I-585 freeway. In addition, the exit from 85 is currently signed "US 176 to I-585".

If 585 does connect all the way through to 85, that would make it a very rare example of an interstate with a signalized at-grade intersection.

I've heard this website is good.. 

Chris

The Wiki page ignores its own reference to the highway logmile report (a thing I did not know existed).

The logmile report clearly indicates the north end of I-585 is 0.18 miles north of SC 85 (which is I-85 Bus).

Interesting, because SCDOT has signed 585 pretty well for about a mile past that. The Valley Falls Rd. interchange a little less than a mile north of BL-85 has clear signage in both directions showing I-585 going both north and south. If you get on the ramp to 585 north/176 west, you'll get this reassurance marker (which I can confirm is still there as of January 2021). Heading away from the I-85 diamond, there is a reassurance marker only for US 176 east.

That northbound reassurance past Valley Falls was the northernmost reference to 585 I could find. I know we can't always trust signage for everything, but if we did in this case it would appear 585 ends at the Fairforest Rd light.

Some of that signage is nearing 10 years old.  No idea why it has been signed past 85 Bus.  SC is generally known for its paucity of signage instead of an abundance...