The same route numbers crossing state lines

[OCGuy81]

Not sure if this has come up before, but one of my responses on the ranking of state border crossings had me realize (thanks to jayhawkco) that there are two instances of a 205 crossing Oregon's borders.  I'm curious where else this might happen?

Obviously, both Interstate and US 41 cross from Wisconsin into Illinois (though.....does Interstate 41 terminate at the state line?  )

Maybe there's places in Texas where a SH with the same number as one of Texas' interstates or US highways crosses a state line?

[hotdogPi]

I-295 (MA) into Rhode Island and MA 295 into New York
US 4 (NH) into Vermont and NH 4 into Maine

[TheHighwayMan3561]

I-41 technically ends at the first exit in Illinois.

[OCGuy81]

I-41 technically ends at the first exit in Illinois.

Thanks, I couldn't recall whether or not Illinois recognized Interstate 41 or not.

[jp the roadgeek]

US 2 (NY) into VT and NY 2 into MA.

US 9 (NY) into NJ and VT 9 into NY (becomes NY 7)

[1995hoo]

US-311 crosses from Virginia to North Carolina near Berry Hill, VA. VA-/WV-311 crosses the Virginia/West Virginia state line three times, once a short distance east of White Sulphur Springs, WV; then back into West Virginia near Sweet Springs, WV; then back into Virginia a short distance south of there.

[TheHighwayMan3561]

If you count them as separate routes, MN 61 crosses from MN into Canada and US 61 crosses from MN into Wisconsin.

[SkyPesos]

I don't think Ohio have any examples, as they don't duplicate numbers.

For Indiana, first one that comes to mind is I-64 and IN 64, both into IL. Their crossings are only about 20 miles apart too.

[wanderer2575]

When I-73 comes to Michigan    we'll have that crossing into Ohio along with M-73 crossing into Wisconsin.

[ran4sh]

I-20 and GA 20 both reach the GA/AL state line

US 23 and GA 23 both reach the GA/FL state line

US 25 and GA 25 both reach the GA/SC state line

US 1 and GA 1 both reach the GA/FL state line, although these two routes are farther apart than the above pairs of routes.

Of course, Georgia has all these examples because (1) all Interstate and US route segments also have state route numbers, and (2) Georgia does not care about duplication of numbers between different systems.

If we include the same number crossing different state lines, then there are plenty of other examples, such as US and GA 17.

[paulthemapguy]

US136 and IL/IA136 both cross the IL/IA state line.

[NWI_Irish96]

I don't think Ohio have any examples, as they don't duplicate numbers.

For Indiana, first one that comes to mind is I-64 and IN 64, both into IL. Their crossings are only about 20 miles apart too.

If you're in Owensville, IN, and want to go to IL, you either need to go north to 64 or south to 64.

Indiana has three other interstate/state highway duplicates, but none of IN 65, 69 or 70 reach a state line.

[brownpelican]

Louisiana 12 crosses the Sabine River and becomes Texas 12.

[SkyPesos]

Louisiana 12 crosses the Sabine River and becomes Texas 12.

OP is looking for two numbered routes of different quality (I, US, State, etc) that both cross state lines in the state. So for example, if I-12 also crossed a state line, LA 12 and I-12 would count.

[epzik8]

In Maryland, MD 295 crosses into the District of Columbia and becomes DC 295, which then becomes I-295 and re-enters Maryland just before meeting the Capital Beltway.

[Flint1979]

Not sure if this has come up before, but one of my responses on the ranking of state border crossings had me realize (thanks to jayhawkco) that there are two instances of a 205 crossing Oregon's borders.  I'm curious where else this might happen?

Obviously, both Interstate and US 41 cross from Wisconsin into Illinois (though.....does Interstate 41 terminate at the state line?  )

Maybe there's places in Texas where a SH with the same number as one of Texas' interstates or US highways crosses a state line?

IDOT isn't interested in I-41 it ends at the state line. I don't know why Wisconsin thought it was going to be extended south.

[roadman65]

If FL 10 counts it and I-10 both cross into AL.  FL 10 is US 90 in the state paperwork.

[I-55]

In Maryland, MD 295 crosses into the District of Columbia and becomes DC 295, which then becomes I-295 and re-enters Maryland just before meeting the Capital Beltway.

The MD-295 designation ends (at least the signage does) at MD-175. DC-295 and I-295 both cross out of DC into MD though to your point.

[Bickendan]

OR 205 does not go south of Frenchglen.

[sprjus4]

Not sure if this has come up before, but one of my responses on the ranking of state border crossings had me realize (thanks to jayhawkco) that there are two instances of a 205 crossing Oregon's borders.  I'm curious where else this might happen?

Obviously, both Interstate and US 41 cross from Wisconsin into Illinois (though.....does Interstate 41 terminate at the state line?  )

Maybe there's places in Texas where a SH with the same number as one of Texas' interstates or US highways crosses a state line?

IDOT isn't interested in I-41 it ends at the state line. I don't know why Wisconsin thought it was going to be extended south.

According to the FHWA Interstate Log, it crosses the state line for "2.5 miles"  and terminates in Illinois, beyond the state line.

[vdeane]

In Maryland, MD 295 crosses into the District of Columbia and becomes DC 295, which then becomes I-295 and re-enters Maryland just before meeting the Capital Beltway.

The MD-295 designation ends (at least the signage does) at MD-175. DC-295 and I-295 both cross out of DC into MD though to your point.

Yep.  And it's MD 201 that becomes DC 295.  The Baltimore-Washington Parkway doesn't have a number.

[jmacswimmer]

In Maryland, MD 295 crosses into the District of Columbia and becomes DC 295, which then becomes I-295 and re-enters Maryland just before meeting the Capital Beltway.

The MD-295 designation ends (at least the signage does) at MD-175. DC-295 and I-295 both cross out of DC into MD though to your point.

Yep.  And it's MD 201 that becomes DC 295.  The Baltimore-Washington Parkway doesn't have a number.

Upon consulting the MDOT SHA Highway Location Reference for PG County (jump to page 94), MD 295 does indeed exist (unsigned) along the NPS portion of the parkway.  However, it appears based on the HLR that the MD 295 designation technically starts here upon departing US 50 east, and this connection from DC 295/MD 201 is technically a short ramp from MD 201 to unsigned MD 295 despite functionally appearing to be the mainline movement.

So MD 295 does get close to DC 295, but just misses it.

[SD Mapman]

SD doesn't duplicate numbers, and WY does but the way the WY system is set up the only duplicates for major interstate/US routes are tiny pointless spurs, so this isn't really a thing here.

[US 89]

US 95 and AZ 95 both cross the California-Arizona border - AZ 95 just across from Needles, and US 95 while concurrent with I-10 at Ehrenberg.

[CNGL-Leudimin]

SD doesn't duplicate numbers, and WY does but the way the WY system is set up the only duplicates for major interstate/US routes are tiny pointless spurs, so this isn't really a thing here.

However there are US 89 and WY 89 both hitting state borders .