State highwys that end at a state line with no counterpart in the ajacent state

[dvferyance]

I was at the South Bend road meet over the weekend and I noticed M-217 ends at the Indiana state line with no state highway continuing on. Same goes for IN-19 vice versa with no Michigan counterpart. How common is this? I always believe that when a state highways enters another state it should continue as a state highway in that neighboring state. I do know IL-73 ends at the Wisconsin state line then becomes Green county M. I always thought Green county M from the state line to WI-11 in Browntown should have been transferred to WisDOT when the nearby WI-176 was decommissioned.

[Max Rockatansky]

I was at the South Bend road meet over the weekend and I noticed M-217 ends at the Indiana state line with no state highway continuing on. Same goes for IN-19 vice versa with no Michigan counterpart. How common is this? I always believe that when a state highways enters another state it should continue as a state highway in that neighboring state. I do know IL-73 ends at the Wisconsin state line then becomes Green county M. I always thought Green county M from the state line to WI-11 in Browntown should have been transferred to WisDOT when the nearby WI-176 was decommissioned.

Very common....I can think of another for Michigan with OH 120 having no counterpart on the MI side to Morenci....granted M120 was once there.  One of the stranger ones for me is CA 299 since US 299 never went east of US 395...yet CA 299 goes into Nevada along old NV8a which was decommissioned a long time ago.  CA 62 has a gap on the AZ side to AZ 95 in Parker and strangely enough the northern segment of AZ 95 doesn't continue as anything crossing the Colorado into Needles, CA.  NV 164 is state highway to the California state line where it continues just as Nipton Road...

[Ian]

DE 100's north end at the PA state line is an example, but it wasn't always like that. PA 100 used to come down through West Chester and Chadds Ford to form a continuous route 100 between the two states, but PennDOT truncated it to US 202 north of West Chester in the early 2000s.

New Hampshire seems to have a good amount also...
-NH 128 turns into Mammoth Road as you enter Dracut, MA
-NH 121 turns into Main Street as you enter Haverill, MA (although the signs up the street where it meets MA 125 reference NH 121)
-NH 108 turns into Newton Road as you enter Haverhill, MA
-NH 107A turns into Hampton Road as you enter Amesbury, MA
-NH 122 turns into Hollis Street as you enter Pepperell, MA
-NH 123 AND 124 ending at the MA line near Townsend, MA
-NH 123A turns into West Road in Ashby, MA

[peterj920]

Between Michigan and Wisconsin:

M-95 becomes a local street just before County N
Wis 17 becomes County 436
M-64 becomes County B
Wis 122 Becomes Lake Rd

[opspe]

NV 292 ends at the Oregon state line at Denio, continuing as Harney CR 201.  But, Google Maps et al erroneously show it connecting with OR 205, which actually terminates way further north at the Roaring Springs Ranch airport.  That's always bugged me.

Edit: This is one instance where ODOT's obtuse highway/route system actually coincides.  Frenchglen Hwy No. 440 is entirely concurrent with OR 205.

[jp the roadgeek]

More from the Northeast:

CT/MA: CT 272 becomes Norfolk Rd in Sandisfield, MA 31 becomes Dresser Hill Rd in Thompson, and MA 7A becomes SR 819 in North Canaan.

CT/NY: CT 361 used to become NY 361, but NY 361 became Dutchess CR 62.  CT 41 becomes Dutchess CR 2, CT 341 becomes Dutchess CR 3, CT 104 and CT 124 becomes  local roads  (one of which used to be NY 124). CT 15 becomes the (reference route) Hutch Parkway

NY/NJ: NY 303, NY 304, and NY 340 become local roads, NJ 23 becomes Orange CR 15.

NJ/PA: NJ 94 becomes an unnumbered connection to PA 611 on the Portland/Columbia Toll Bridge, PA 739 becomes Sussex CR 560, NJ 12, PA 532, and NJ 90 become local roads

NY/PA: NY 7A, NY 367, PA 44, PA 167, PA 191, PA 546, and PA 958 become local roads, PA 858 becomes Tioga CR 41, PA 69 becomes Chatauqua CR 69 

PA/DE: DE 3, DE 100 (although it used to become PA 100), and DE 7 all become local roads.

DE/MD: MD 281, MD 285, MD 286, MD 330, MD 306, MD 568, MD 367, all become local roads.

MA/NY: MA 102 becomes an unsigned reference route, NY 344 becomes a local road

NH/ME: ME 101 becomes a local road

VT/NH: VT 105, VT 113 and VT 114 become local roads

NY/VT: VT 279 become an unsigned reference route, VT 153 becomes Washington CR 153, VT 31 becomes Washington CR 25, NY 314 and NY 373 are unsigned local roads on the other side of their respective ferries

[Kacie Jane]

NY/NJ: NY 303, NY 304, and NY 340 become local roads, NJ 23 becomes Orange CR 15.

NY 303, 304, and 340 become CR 505, 503, and 501 respectively.

[Kacie Jane]

Washington/Oregon has two possibly interesting examples involving Columbia River bridges.

Washington has SR 433, a short route leading from SR 432 in Longview to the Lewis and Clark Bridge.  SR 433 ends at the state line; ODOT maintains the Oregon approaches but it's not one of their numbered highways.

.....And then I was going to ramble about the Hood River Bridge, but in double checking, I found out that OR 35 doesn't quite meet the bridge (which is not maintained by either state, rather by the Port of Hood River).  So this doesn't qualify, but let me ramble anyway, since I find it moderately interesting that there's a state route on the Oregon side but not on the Washington side... especially since Washington did write a State Route 35 into law, but only as an approach to a formerly proposed replacement bridge, not the approach to the current bridge.

[TheHighwayMan3561]

Minnesota-Iowa:

MN 22 becomes a county road
MN 91 becomes a county road (Iowa decommissioned the matching IA 91)
MN 105 becomes a county road

[Mapmikey]

SC 57 becomes a NC secondary route. 

South Carolina used to have 18 other state routes that became secondary routes in North Carolina but they were eliminated in 1947.

Virginia has non-primary routes meeting these highways:
NC 615, NC 39, NC 903, NC 194, TN 133, TN 33, KY 38, KY 932, KY 194, WV 635, WV 123, WV 45, MD 12

TN 32 becomes a NC secondary route (used to be NC 284), as did TN 107 (used to be NC 292)

[DandyDan]

Between Kansas and Nebraska, K-7 becomes a county road in the far SE corner of Nebraska (which gets labeled 666 Rd by Google maps) and NE 65 becomes a county road (Baileyville Road) in Kansas.  The odd thing about that one is that the state road is gravel and the county road is paved.

[Darkchylde]

In/near Kansas City, MO 150 transitions into a local road on the Kansas side. MO 18 also does the same a bit south of the Kansas City metro. MO 76 does similar into Oklahoma.

At the Arkansas/Missouri line, there are numerous instances of numbered Arkansas routes crossing over and becoming lettered routes, but since those are still state-maintained, they probably wouldn't count here.

[jeffandnicole]

...I always believe that when a state highways enters another state it should continue as a state highway in that neighboring state....

In many cases, some states maintain all their roads, whereas adjoining states use a state/county/municipal road system.  Thus, these "disconnects" as you may think of them happen quite often, although in many cases it wouldn't be noticeable except for the road signage.  Crossing from DE into PA, or MD into PA, you wouldn't think that you're going from state highway to state highway because of how narrow and generally more-poorly maintained PA's state routes are.  Yet in other states, such as NJ, we have many county routes that are wider and have heavier traffic counts than some of our state roads. 

It would stand to reason that if two state roads joined at the state line, they should maintain the same route number, which doesn't happen quite often as well either.

[txstateends]

TX 207 continues as a county road in Oklahoma

[NWI_Irish96]

I was at the South Bend road meet over the weekend and I noticed M-217 ends at the Indiana state line with no state highway continuing on. Same goes for IN-19 vice versa with no Michigan counterpart. How common is this? I always believe that when a state highways enters another state it should continue as a state highway in that neighboring state. I do know IL-73 ends at the Wisconsin state line then becomes Green county M. I always thought Green county M from the state line to WI-11 in Browntown should have been transferred to WisDOT when the nearby WI-176 was decommissioned.

In addition to the two you mentioned:

IN 18 does not continue as a state highway in IL.
IN 32 does not continue as a state highway in IL.
IN 163 does not continue as a state highway in IL.
IN 154 does not continue as a state highway in IL.
IN 161 does not continue as a state highway in KY.
OH 122 does not continue as a state highway in IN.
OH 502 does not continue as a state highway in IN.
IN 124 does not continue as a state highway in OH.
OH 613 does not continue as a state highway in IN.
OH 111 does not continue as a state highway in IN.
OH 249 does not continue as a state highway in IN.
IN 120 does not continue as a state highway in MI.
IN 327 does not continue as a state highway in MI.

Some of these used to continue but got decommissioned.  I know that IN 19 used to continue as M-205.
OH 122 used to continue as IN 122.  There are probably others, especially over on the IN/OH border that used to continue but one side got decommissioned.

[WillWeaverRVA]

Virginia has non-primary routes meeting these highways:
NC 615, NC 39, NC 903, NC 194, TN 133, TN 33, KY 38, KY 932, KY 194, WV 635, WV 123, WV 45, MD 12

And likewise, VA 4 becomes a secondary route in NC.

[opspe]

Washington/Oregon has two possibly interesting examples involving Columbia River bridges.

Washington has SR 433, a short route leading from SR 432 in Longview to the Lewis and Clark Bridge.  SR 433 ends at the state line; ODOT maintains the Oregon approaches but it's not one of their numbered highways.

Another bridge one is OR 86, crossing the Snake River into Idaho at Oxbow.  The route (and Baker-Copperfield Hwy No. 012) end on the bridge at the state line, becoming NF 454, administered as part of Payette National Forest.

Idaho SH 71 does the same a ways upstream.

Also there are a few numbered highways in Oregon (that are unsigned post 2009 routes) that end abruptly:

OR 332 (Sunnyside-Umapine Hwy)
OR 339 (Freewater Hwy)
OR 453 (Adrian-Arena Valley Hwy)
OR 454 (Adrian-Caldwell Hwy)

[Rover_0]

UT-42, UT-23, and UT-200 all end at the Utah/Idaho border, with the road on the Idaho side continuing as a county road.

[froggie]

VT/NH: VT 105, VT 113 and VT 114 become local roads

Not local roads.  Though unnumbered, each road is a NHDOT-maintained state highway on the New Hampshire side.

NY/VT: VT 279 become an unsigned reference route

Given that the OP didn't really specify unnumbered state highways (just mentioned state highways in general), I see this one and the VT/NH examples above as being in a "gray area".

NY 314 and NY 373 are unsigned local roads on the other side of their respective ferries

Not true in NY 314's case...it's part of VT 314 on this side of the ferry.

MN 105 becomes a county road

More like ends entirely...though I guess you could count the state line road as an Iowa county road.

Regarding Minnesota, there are a few others along the border with the Dakotas and one with Manitoba:

- MN 117 becomes a county road in South Dakota
- ND 13 becomes CSAH 12 in Breckenridge, MN
- MB (Manitoba) 525 becomes CSAH 49 going up to the Northwest Angle.

[hbelkins]

IN 161 does not continue as a state highway in KY.

Yes it does. The "Blue Bridge" in Owensboro is KY 2262.



There are several in Kentucky that cross into Tennessee.

[okroads]

OK 58 becomes an unpaved county road when it enters Kansas.

[Ned Weasel]

In/near Kansas City, MO 150 transitions into a local road on the Kansas side.

The local road on the Kansas side (135th Street/Santa Fe Street) used to be K-150, from State Line Road west to K-7.

[vdeane]

NY 314 and NY 373 are unsigned local roads on the other side of their respective ferries

Not true in NY 314's case...it's part of VT 314 on this side of the ferry.

And there's the matter of NY 314 no longer being signed east of US 9.

[Revive 755]

* IN 312 at the Illinois border, though I believe the road on the Illinois side is actually under IDOT's jurisdiction

The following are assuming Google Maps is correct:

* MO 129 connects with a county route on the Iowa side of the border

* MO 139 connects with a county route on the Iowa side of the border

* MO 149 connects with a county route on the Iowa side of the border

* MO 15 connects with a county route on the Iowa side of the border

* MO 3 connects with a county route on the Iowa side of the border

[Road Hog]

TX 207 continues as a county road in Oklahoma

On dry land I imagine these types of changes are too numerous to count. For Red River crossings, though, I know of one: the Carpenter's Bluff bridge east of Denison where FM 120 ends and continues as a county road in Oklahoma.