Chain of State highways

[Inyomono395]

Idaho Montana North Dakota and Minnesota all have a State Route 200 that connect as a continuous route. Was this a US route that got decommissioned?

Do other states do this?

I live near the California/Nevada border and in most cases the state route changes numbers when you hit the state line. (With the exception of CA/NV 266 and CA/NV 88)

[Max Rockatansky]

No 200 was never a US Route nor do I believe there was any intention for it to be.  The most infamous example that largely doesn't exist anymore is the whole western 789 that was being pushed as Canada to Mexico US 789.  Another example that I'm fairly familiar with out east is 121 from Florida, Georgia to South Carolina.  Another is Texas and New Mexico 114. 

[KEVIN_224]

Route 9 ---> Maine, New Hampshire, Vermont...changes to Route 7 at the New York border.
Route 10 ---> Connecticut, Massachusetts, New Hampshire
Route 12 ---> Connecticut, Massachusetts, New Hampshire, Vermont

[jp the roadgeek]

Route 9 ---> Maine, New Hampshire, Vermont...changes to Route 7 at the New York border.
Route 10 ---> Connecticut, Massachusetts, New Hampshire
Route 12 ---> Connecticut, Massachusetts, New Hampshire, Vermont

All part of the 1920's New England Interstate System.  Also:

Route 8: Connecticut, Massachusetts, Vermont
Route 11: Vermont, New Hampshire, Maine
Route 26: Vermont (for a couple of hundred feet), New Hampshire, Maine
Route 32: Connecticut, Massachusetts, New Hampshire
Route 119 (not part of NE Interstates): Massachusetts, New Hampshire, Vermont (for a couple of hundred feet)

Route 9/NY 7 also connects to PA 29.  NY originally numbered it as Route 9 until US 9 was built.

[peterj920]

Wisconsin to Illinois: Wis 83/IL 83,   Wis 78/IL 78,   Wis 78/IL 78.  There once was Wis 80 to IL 80, but IL 80 was renumbered IL 84 after I-80 was designated to avoid duplicate numbers. 

Wisconsin to Minnesota:  Wis 243/MN 243     Wis 70/MN 70

Illinois to Iowa   IL 92/IA 92   IL 136/IA 136

[mariethefoxy]

Pennsylvania/Maryland/Delaware Route 896

Pennsylvania/Delaware Route 41

a lot of those 200 series routes in DE are carry over numbers from Maryland, as is DE/MD Route 54 and DE/MD Route 404. Route 54 is unique in that it straddles the border.

[TheHighwayMan3561]

Minnesota and Iowa have numerous "chained" state routes. State Highways 4, 15, 26, 60, 76, 86, 91, and 139 all maintain their numbers when crossing the border between the two. I'm only mentioning it for the high degree of coordination between the two states since I'm guessing you're more interested in examples of 3+ states (all of these chains only exist in MN/IA).

[jeffandnicole]

NJ/PA 73

NJ/PA 413

[hotdogPi]

Route 9 ---> Maine, New Hampshire, Vermont...changes to Route 7 at the New York border.
Route 10 ---> Connecticut, Massachusetts, New Hampshire
Route 12 ---> Connecticut, Massachusetts, New Hampshire, Vermont

All part of the 1920's New England Interstate System.  Also:

Route 8: Connecticut, Massachusetts, Vermont
Route 11: Vermont, New Hampshire, Maine
Route 26: Vermont (for a couple of hundred feet), New Hampshire, Maine
Route 32: Connecticut, Massachusetts, New Hampshire
Route 119 (not part of NE Interstates): Massachusetts, New Hampshire, Vermont (for a couple of hundred feet)

Route 25: Vermont, New Hampshire, Maine
Route 138: Connecticut, Rhode Island, Massachusetts

[jp the roadgeek]

(Mostly) Former: Route 17  Pennsylvania, New York, Pennsylvania, New York, New Jersey

Route 55: Connecticut, New York, Pennsylvania (as Route 434)

[Big John]

Wisconsin to Illinois: Wis 83/IL 83,   Wis 78/IL 78,   Wis 78/IL 78.  There once was Wis 80 to IL 80, but IL 80 was renumbered IL 84 after I-80 was designated to avoid duplicate numbers. 

I think you meant 35 in place of one of the 78s.

[PHLBOS]

NJ/PA 413

While technically correct, it should be noted that NJ 413 is only 0.76 miles long.  Prior to 1953, NJ 413 was NJ S25.

Prior to the rerouting & truncation of PA 100 about a decade ago; there used to be DE/PA 100.

Question to the OP: are you looking for state routes that continue beyond just 2 states? 

If you're looking for state routes that cross into just one adjacent states at a minimum; you're going to get a sizable bunch of listings from others.

[SP Cook]

WV - VA 9 begins at the Potomac border with Maryland and ends near Leesburg.
WV - VA - NC 16 begins at the Ohio border near St. Marys, takes a complex path across WV, enters Virginia roughly paralleling I-77 about 25 miles west of it, then enters North Carolina ending at Waxhaw just at the SC line.
WV - VA 39 begins at US 60 in Gauley Bridge and ends near Lexington.
WV - PA - PA Turnpike 43 begins at I-68 in Cheat Lake, to an end yet to be determined.
WV - VA 55, begins at US 19 near Muddlety and ends at US 29 near Gainesville.
WV - VA 83, begins at WV 16 near War, is in WV for less than 6 miles, and then ends in Pound near the Kentucky line.
WV - WV 84, begins at WV 92 near Frost, is in WV for less than 5 miles, and then ends at US 220 near Vanderpool.
WV - VA 102 is a route in and near Bluefield that crosses the state line multiple times.
WV - VA 127 begins near Forks of Cacapon and ends at US 522 near Cross Junction.
WV - VA 311 begins at White Sulphur Springs, enters VA after only 0.3 miles, then reenters WV for 4 miles near Sweet Springs, and then ends a Salem.
WV 527 is a number change of WV 152 at I - 64, runs on various city streets in Huntington, and then is the 6th Street Bridge to Ohio.  The part in Ohio is OH 527.
WV - VA 598 is the pre- East River Mountain tunnel US 52 over East River Mountain.
WV - VA Secondary 635 begins in Jolo and runs less than 4 miles to the state line, where it ends near Whitewood.
WV - MD 956 is a short road near Rocket Center, only 4.2 miles in WV and 0.5 miles in Maryland.

In addition bridges across the Ohio that do not carry another route number are a often short state route in both states.

WV - OH  527 in Huntington.
WV - OH 807 in St. Mary's.
WV - OH 822 in Steubenville (unsigned)

[NE2]

https://www.aaroads.com/forum/index.php?topic=8306.0

[Thing 342]

VA-KY 80 runs for over 550 miles between the Mississippi and the Blue Ridge, with a border crossing at Interstate Breaks Park.

[Inyomono395]

Question to the OP: are you looking for state routes that continue beyond just 2 states? 

If you're looking for state routes that cross into just one adjacent states at a minimum; you're going to get a sizable bunch of listings from others.

I was looking to see if there are more State Highway chains that stretch 3-4 states or more, but I have enjoyed all the responses so far.

[Inyomono395]

Didn't mean to put my response in the quote, sorry for the rookie mistake

[bzakharin]

NJ/NY/NJ 440

[peterj920]

Wisconsin to Illinois: Wis 83/IL 83,   Wis 78/IL 78,   Wis 78/IL 78.  There once was Wis 80 to IL 80, but IL 80 was renumbered IL 84 after I-80 was designated to avoid duplicate numbers. 

I think you meant 35 in place of one of the 78s.

I did, sorry for the mistake

[Brandon]

https://www.aaroads.com/forum/index.php?topic=8306.0

I thought we had done all this before.  Deja vu all over again.

[Inyomono395]

Sorry, didn't realize I was repeating a topic

[Rover_0]

No 200 was never a US Route nor do I believe there was any intention for it to be.  The most infamous example that largely doesn't exist anymore is the whole western 789 that was being pushed as Canada to Mexico US 789.  Another example that I'm fairly familiar with out east is 121 from Florida, Georgia to South Carolina.  Another is Texas and New Mexico 114. 

Actually, I believe that Multi-State Route 200 was planned as a US Route, but was rejected by AASHTO in the late 1950s or early 1960s. I'm not sure what the number was, but after the rejection, the states decided to give it a common number and hence MSR 200 was born.

[paulthemapguy]

Illinois to Iowa   IL 92/IA 92   IL 136/IA 136

Was going to mention route 92, so I'll add that it also carries westward into Nebraska as NE-92.

[Max Rockatansky]

No 200 was never a US Route nor do I believe there was any intention for it to be.  The most infamous example that largely doesn't exist anymore is the whole western 789 that was being pushed as Canada to Mexico US 789.  Another example that I'm fairly familiar with out east is 121 from Florida, Georgia to South Carolina.  Another is Texas and New Mexico 114. 

Actually, I believe that Multi-State Route 200 was planned as a US Route, but was rejected by AASHTO in the late 1950s or early 1960s. I'm not sure what the number was, but after the rejection, the states decided to give it a common number and hence MSR 200 was born.

I wonder what the reason was back then if that was the case?  I would imagine a lot of it probably had either gravel or dirt segments which by those days probably would have led to a rejection.  Kind of interesting it never got picked up as a spur of US 2 since 200 is often the better road or more direct.

[Bruce]

While not a state highway chain, British Columbia numbered their provincial highways after U.S. routes and state highways at border crossings:

BC 99 & I-5 (formerly US 99) at Blaine, WA
BC 11 & SR 9 (formerly SSH 1A...close enough) at Sumas, WA
BC 97 & US 97 at Osoyoos, BC
BC 41 & SR 21 (formerly SSH 4A...close enough) at Dansville, WA
BC 395 (tiny spur) & US 395 at Laurier, WA
BC 22 & SR 25 (formerly PSH 22)
BC 22A & Boundary Road (formerly SR 251 and SSH 22A)
BC 6 & SR 31 (formerly PSH 6)

BC 95 & US 95 at Eastport, ID

BC 93 & US 93 at Roosville, BC