State highways that enter other states

[bugo]

MN 23
AR 108
AR 43
NY 17

[KEK Inc.]

Nevada & California or Oregon has plenty.

Washington has a few into Oregon.

[usends]

Probably most of them are covered here:
https://www.aaroads.com/forum/index.php?topic=5476.0

[agentsteel53]

Nevada & California or Oregon has plenty.

I cannot think of a CA state route that is in another state offhand.

[hbelkins]

Are you talking about roads that keep their original state designations when they cross the border, or routes that merely disappear into another state and then reappear?

If the latter, then KY 87 and WV 46 qualify.

[corco]

Washington has a few into Oregon.

433 and?



Wyoming 70 jumps into Colorado




Montana's section of US-191 goes into Wyoming and Montana maintains it

If the latter, then KY 87 and WV 46 qualify.

So do Wyomings 89 and 230

[US71]

Not a state highway, but Miller County (AR) 55

[Alps]

NH 153 is in Maine. Or the other way around. I forget how that one works. NY 17 is (soon to be was) the most well-known example.

[Scott5114]

I believe OK/AR 43 veers entirely into OK at one point, putting AR 43 out of state.

[mapman1071]

NY 120A in Conn

[bugo]

I believe OK/AR 43 veers entirely into OK at one point, putting AR 43 out of state.

It does.  I mentioned it in the first post of this thread.

[TheStranger]

NY 17 in Waverly, Pennsylvania though that's slated to become I-86 (if it hasn't by now).

[Scott5114]

I believe OK/AR 43 veers entirely into OK at one point, putting AR 43 out of state.

It does.  I mentioned it in the first post of this thread.

please defenestrate me promptly

[sp_redelectric]

Washington has a few into Oregon.

433 and?

This one is really a technicality...while WSDOT does maintain the Lewis & Clark Bridge (SR 433, as seen with the SR 433 sign firmly planted on Oregon soil), ODOT maintains the Astoria-Megler (US 101), Interstate (I-5), Glenn Jackson (I-205), The Dalles (US 197) and Umatilla (I-82/US 395) bridges.  WSDOT also maintains the Sam Hill (US 97) bridge, and the Bridge of the Gods and Hood River Bridges are maintained by local port authorities.  The Lewis & Clark Bridge just happens to be the only one that doesn't carry an Interstate or U.S. marker.  And the road that is on firm soil is maintained by the actual state - WSDOT does not maintain the interchange with U.S. 30 (or the asphalt to the left of the SR 433 sign).

A curiosity a few years back in the days of the stimulus was that there was a "Washington Jobs Now" sign posted in Oregon state for the L&C bridge, and over on U.S. 101 there was a "Creating Jobs for Oregon" sign in Washington state just before the A-M bridge.

The Cathlamet Ferry actually carries a Washington state route designation but the Ferry itself is owned/operated by Wahkiakum County.  And the road on the south side of the ferry...is a disgrace.

[roadman65]

DE-PA 896 enters MD for a brief moment.  It sort of kind of fits this as it does fit a moment where one road just is barely within another state.

[yakra]

NH 153 is in Maine. Or the other way around. I forget how that one works.

NH153 enters Maine while it passes around the eastern shore of Province Lake, runs north along the state line for about a mile, then reenters NH. This segment is maintained by MDOT. There's even a Maine-style Route 153 shield, on the NH side of the road.
Not to be confused with ME153, which is elsewhere.

Just a stone's throw south of there, ME110 is signed by NHDOT at the NH153 junction.
Not to be confused with NH110, elsewhere.

ME113 enters NH twice. ME113 IS to be confused with NH113: NH113 ends at the state line, just a mile and a ½ from ME113. Back in the 1930s, ME113 ended in Fryeburg -- my guess is, at the state line, making it a continuous multi-state route. Later, ME113 was extended north, entering NH twice. So it's almost sort of a 3-pronged Y-shaped route, save for the 1½ mi gap along U302 in Fryeburg ME.
The NH sections of ME113 are ME113 and not NH113. They have Boring Square style signage erected by NHDOT. (Well, at least the northern NH section, I'm sure of. I'm less positive of whose signage is on the southern NH section.)

Ready for more Wacky High Jinks™? NH113B is a NH Branch of a Maine route. A loop off of ME113, not NH113. Right where ME113 crosses the state line, NH113B splits off the south end of the middle NH section, runs south through Chatham NH for 3 mi, then appropriately enough, spends its last mile in Maine before hooking back up to ME113. NHDOT has a shield up at NH113B's southern beginning in Maine.

...Ya got all that?

[kphoger]

...Ya got all that?

No.

But that's OK.  Don't explain it again.  My brain can't take it.

[Alps]

DE-PA 896 enters MD for a brief moment.  It sort of kind of fits this as it does fit a moment where one road just is barely within another state.

Except not at all, because it's MD 896.

[roadman65]

DE-PA 896 enters MD for a brief moment.  It sort of kind of fits this as it does fit a moment where one road just is barely within another state.

Except not at all, because it's MD 896.

Is it at all signed?  Articles I read, say that there are no shields and it intersects one local road.  Does this road lead to any part of the rest of MD?

[Alps]

DE-PA 896 enters MD for a brief moment.  It sort of kind of fits this as it does fit a moment where one road just is barely within another state.

Except not at all, because it's MD 896.

Is it at all signed?  Articles I read, say that there are no shields and it intersects one local road.  Does this road lead to any part of the rest of MD?

You can follow that local road to the rest of MD. It's not signed I believe, but it's nearly a mile long.

[national highway 1]

MT 43 enters Idaho for a bit before terminating at US 93 at Chief Joseph Pass.

[jcarte29]

NC 179 from Calabash NC travels a couple miles to US 17 in Little River, SC.

[dfilpus]

NC 179 from Calabash NC travels a couple miles to US 17 in Little River, SC.

But that segment is signed SC 179, so this is a case of a state route number crossing a state line, instead of a state route actually crossing the state line.

[Laura]

DE-PA 896 enters MD for a brief moment.  It sort of kind of fits this as it does fit a moment where one road just is barely within another state.

Except not at all, because it's MD 896.

Is it at all signed?  Articles I read, say that there are no shields and it intersects one local road.  Does this road lead to any part of the rest of MD?

You can follow that local road to the rest of MD. It's not signed I believe, but it's nearly a mile long.

Steve is correct. The 0.21 mile stretch of MD 896 is unsigned. The only hint that the road crosses through MD is that the Welcome signs for PA and DE are spread a little extra distance apart.

Little Egypt Road, which is the one intersecting road on MD 896, leads back to MD 273 (Telegraph Road), which heads west towards Rising Sun, MD and east towards Newark, DE.

[Mapmikey]

MD 896 is definitely its own route...

Older maps show it explicitly labeled as MD 896 and MD 278 before that.

VA 76 used to be defined as having its east/northbound routing along State St in Bristol which would mean it was in Tennessee.  VA 10 used to do the same thing there.

Mapmikey