Interstates and U.S. routes entering Canada and Mexico because 'Murrica

[bugo]

I thought someone said US 2 used to be designated through Canada, though I don't remember ever seeing this on any map.

http://groups.google.com/d/msg/misc.transport.road/Tn_Zz-E9C7o/2vFGXKVwEnYJ

I'd forgotten what a bellend JP Kirby was.

[bugo]

Why would any US highways be signed in other countries though? 

Because there's a few places where a Kentucky state route enters a neighboring state. For instance, KY 17 goes a little bit into Ohio to include the Suspension Bridge.

AR 43 goes a few hundred feet into Oklahoma.

[lordsutch]

My recollection is that there was some preliminary discussion of extending US 97 to Alaska via the Alaska Highway, and as part of that plan that BC considered signing what is now BC 97 as US 97, but nothing came of it and it was never signed as a US route in BC or the Yukon (although signs apparently were produced in Alaska).

Evidence here.

[Darkchylde]

My recollection is that there was some preliminary discussion of extending US 97 to Alaska via the Alaska Highway, and as part of that plan that BC considered signing what is now BC 97 as US 97, but nothing came of it and it was never signed as a US route in BC or the Yukon (although signs apparently were produced in Alaska).

Evidence here.

That, I believe, was contingent on Yukon signing their part of the route as Yukon 97, but they refused.

[mgk920]

Doesn't I-95 become NB 95?

Mike

[empirestate]

Doesn't I-95 become NB 95?

Mike

Yes it does, although that's a different thread.


iPhone

[TEG24601]

Not so much US routes being signed over Canadian or Mexican roads, but the US routes in the West meet up with BC routes of the same number... usually.  US 99/I-5 meets BC-99.  Same for US 97, US 395, US 95, and US 93.

[SignGeek101]

Aren't the Quebec Autoroutes similar in standards to Interstates? Even the colours are similar, odd numbers are north-south, even are east-west. Quebec has it's own provincial highways different from the Autoroutes, similar to how states have state routes that are different from Interstates. It has spur routes. I think it's as close to an Interstate in Canada.

[vdeane]

Many of the main autoroutes do in practice have similar standards to interstate, but as a system the autoroutes most definitely do not.  For example, A-955 (as linked to) is a freeway for exactly 0 km of its length.  A-55 has a two lane at-grade section as well, and super-2 autoroutes exist as well.

[Molandfreak]

The question wasn't what numbers continue as separate routes, the question was what U.S. Routes and interstates were/are actually signed in Canada and Mexico.


iPhone

[hotdogPi]

The question wasn't what numbers continue as separate routes, the question was what U.S. Routes and interstates were/are actually signed in Canada and Mexico.


iPhone

US 2 in Maine goes through the town of Mexico.

[dmuzika]

Why would any US highways be signed in other countries though? 

Same reason NY 17 is signed in Pennsylvania.

SK 17 is signed in Alberta.

http://goo.gl/maps/fS82q

Not quite. It's AB 17 in Alberta and SK 17 in Saskatchewan. http://en.m.wikipedia.org/wiki/Highway_17_%28Alberta%E2%80%93Saskatchewan%29

Close.  Hwy 17 straddles the Alberta/Saskatchewan border, consigned as AB 17/SK 17 (see https://goo.gl/maps/nfQj7), and both provinces share jurisdiction - even though there are sections that are located entirely within one province.  Even at the SK 17/40 junction near Macklin, it is signed exclusively as SK 17, but that section appears in Alberta Transportation documents as still being under their joint jurisdiction (see http://www.transportation.alberta.ca/Content/docType329/Production/provincial001-216.pdf).

Another example would be YK 2 & YK 3, which go through British Columbia en route to Alaska.  The Klondike Highway (YK 2) is signed as YK 2 in BC and maintained by the Yukon; while the Haines Highway (AK 7 and YK 3) is unsigned in BC but the entire route, including the Alaska and Yukon sections, are jointly maintained by Alaska and the Yukon, http://en.wikipedia.org/wiki/Yukon_Highway_3.

[Bickendan]

Add to that: BC 97 and YT 1, as both border hop the BC/YT border quite a few times.
NWT 5 dips into Alberta at least two times.

[jp the roadgeek]

ME 113 juts into NH 3 or 4 times.  Route 286 jumps the MA/NH line a couple of times.

[Molandfreak]

Reading comprehension, people...


iPhone

[empirestate]

Reading comprehension, people...


iPhone

Yes...I think we're all set on examples of border-crossing state and provincial routes that serve to illustrate why there might be an international example of the same.

[SignGeek101]

Bringing this back again, I remembered there is an instance where pure MUTCD signage has entered Canada, probably American installed.

https://goo.gl/maps/KxDfW

https://goo.gl/maps/UEEGp - Note that "kgs" should be written as "kg" and "kph" should be written as  "km/h"

https://goo.gl/maps/RG7CC

It's the closest thing to having a highway "owned" by the US, but in Canada.

[corco]

Bringing this back again, I remembered there is an instance where pure MUTCD signage has entered Canada, probably American installed.

https://goo.gl/maps/KxDfW

https://goo.gl/maps/UEEGp - Note that "kgs" should be written as "kg" and "kph" should be written as  "km/h"

https://goo.gl/maps/RG7CC

It's the closest thing to having a highway "owned" by the US, but in Canada.

And the opposite on I-15 just south of the Canadian border

[Quillz]

Aren't the Quebec Autoroutes similar in standards to Interstates? Even the colours are similar, odd numbers are north-south, even are east-west. Quebec has it's own provincial highways different from the Autoroutes, similar to how states have state routes that are different from Interstates. It has spur routes. I think it's as close to an Interstate in Canada.

The red, white and blue Autoroute shields came about in the 1960s and were directly modeled after the interstate shields. But as stated, other than a similar numbering scheme and shields, the two networks are quite different.

[SignGeek101]

Bringing this back again, I remembered there is an instance where pure MUTCD signage has entered Canada, probably American installed.

https://goo.gl/maps/KxDfW

https://goo.gl/maps/UEEGp - Note that "kgs" should be written as "kg" and "kph" should be written as  "km/h"

https://goo.gl/maps/RG7CC

It's the closest thing to having a highway "owned" by the US, but in Canada.

And the opposite on I-15 just south of the Canadian border

This exists! 

If it weren't for the "mph" I would have thought the limit was in km/h, even though most km/h limits don't end in 5.