What is the lowest exit number that doesn't exist anywhere in the US?

[Scott5114]

Also, what's up with TX 130's numbering scheme?

Looks like it's based on TxDOT's internal reference marker database, rather than true mileage. The mileage running in reverse is a major giveaway.

[CNGL-Leudimin]

So that explains why the lowest exit number on I-366 TX 130 is so high. I thought it was to be hyperextended North.

Yeah, 511 exists on paper but isn't posted in the field. One of those CA exit numbers where none of the signs have been updated. May be posted in the future.

Interestingly, something similar happens with the next candidate up the list: there is no posted exit 529 anywhere, but internally this is the number for a rest area on I-10 in Texas.

So if you want the lowest that doesn't exist even on paper, the answer is 532.

All in all, the following numbers in the 500s are not posted anywhere in the US:
511
529
532
534
535
547
563
584
590
592
594
598

All of these exist internationally, however, so the highest exit number not posted anywhere in the world is over 600.

Indeed. A-2 in Spain (Catalonia to be exact), for example, has exits 532, 563 (Westbound only) and 598 (also a 598B to booth), all of which doesn't exist in the USA. A-23 used to have 529 and 532 as consecutive exits back when it used N-330 kmposts North of Zaragoza, but it was changed to its own in 2008.

I'll have to check China. With several pretty long routes and exit numbers resetting every 1000 km instead of every provincial boundary (except in Guangdong where they write the full exit number even if it's 4 digits), I'm pretty sure we could extend it well over 600 for anywhere in the World.

[Gnutella]

US-64 in North Carolina has Exits 502, 505, 507, 512, 514, 515, 544, 548, 554, 557, 558, and 562.

I drove on U.S. 64 to the Outer Banks last August. Do you know if NCDOT has any plans to upgrade it to a controlled-access highway between Exits 515 and 544, or even east of Exit 562, such as out to the Alligator River or so? (I know it'll never get upgraded all the way out to Nags Head, but maybe a little further east of the current end of access control?)

[Mapmikey]

US-64 in North Carolina has Exits 502, 505, 507, 512, 514, 515, 544, 548, 554, 557, 558, and 562.

I drove on U.S. 64 to the Outer Banks last August. Do you know if NCDOT has any plans to upgrade it to a controlled-access highway between Exits 515 and 544, or even east of Exit 562, such as out to the Alligator River or so? (I know it'll never get upgraded all the way out to Nags Head, but maybe a little further east of the current end of access control?)

Don't know about east of Columbia but Williamston to Plymouth would require a new terrain alignment unless NCDOT wants to displace many, many homes that have direct driveway access to US 64.  There is not enough room in a lot of places with swamps and railroad routing to have frontage roads along current US 64, especially Williamston to Jamesville.

[webny99]

Also, what's up with TX 130's numbering scheme?

Looks like it's based on TxDOT's internal reference marker database, rather than true mileage. The mileage running in reverse is a major giveaway.

Interesting. I guess I was not aware that was a thing.

[paulthemapguy]

So getting back to the original premise of the thread, 511 is the answer?  Is it 511?

[JayhawkCO]

So getting back to the original premise of the thread, 511 is the answer?  Is it 511?

I'm pretty sure other than the "on paper" exit for CA1 which isn't signed, yes, 511 is the answer.  Now, which state would an exit 511 come in most handy so we can lobby someone for one?

Chris

[sprjus4]

US-64 in North Carolina has Exits 502, 505, 507, 512, 514, 515, 544, 548, 554, 557, 558, and 562.

I drove on U.S. 64 to the Outer Banks last August. Do you know if NCDOT has any plans to upgrade it to a controlled-access highway between Exits 515 and 544, or even east of Exit 562, such as out to the Alligator River or so? (I know it'll never get upgraded all the way out to Nags Head, but maybe a little further east of the current end of access control?)

There's currently no official plans to upgrade US-64 between Williamston and Plymouth to freeway standards as of now. If anything were to be built, I'd start with an extension of the existing freeway west to bypass Plymouth. West of there, upgrading where possible with new locations around towns and where upgrading isn't practical. US-64 between Plymouth and Columbia was previously a 2 lane road that was bypassed by the current freeway built around 2005.

As for between Plymouth and Manns Harbor, NCDOT has been planning to widen the road from 2 to 4 lanes, though has remained unfunded for years. The plans called for partial access control, not a full freeway design. The end result would likely be a 60 mph divided highway with mostly limited access except for a few rural intersections. If a freeway was ever desired beyond that, upgrading it wouldn't be a large task aside from a few rural overpasses and ramps. There's really not much that exists in the project area. A bypass of Columbia would be required, though would end up being an extension of the 2005 freeway east, probably around the south side.

[Eth]

So getting back to the original premise of the thread, 511 is the answer?  Is it 511?

I'm pretty sure other than the "on paper" exit for CA1 which isn't signed, yes, 511 is the answer.  Now, which state would an exit 511 come in most handy so we can lobby someone for one?

Chris

Direct access to Little Bighorn Battlefield National Monument from I-90 in Montana, currently via US 212 at Exit 510.

[KCRoadFan]

I'm pretty sure other than the "on paper" exit for CA1 which isn't signed, yes, 511 is the answer.  Now, which state would an exit 511 come in most handy so we can lobby someone for one?

Chris

Looks like FM 1341 east of Kerrville could use one on I-10...

[KCRoadFan]

...we wouldn't be a big contributor to the 400+ club even with mileage-based exits.

If exit numbers in NY State were based on mile markers, every exit on the Thruway west of Batavia (including the Buffalo area) would be in the 400's.

[vdeane]

...we wouldn't be a big contributor to the 400+ club even with mileage-based exits.

If exit numbers in NY State were based on mile markers, every exit on the Thruway west of Batavia (including the Buffalo area) would be in the 400's.

Only if using the existing Thruway mileage, not I-87 and I-90 mileage.

[TheGrassGuy]

So that explains why the lowest exit number on I-366 TX 130 is so high. I thought it was to be hyperextended North.
I'll have to check China. With several pretty long routes and exit numbers resetting every 1000 km instead of every provincial boundary (except in Guangdong where they write the full exit number even if it's 4 digits), I'm pretty sure we could extend it well over 600 for anywhere in the World.

*rrrgh i was gonna mention that*