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Concurrencies where the highways split off in the same direction both times

Started by thspfc, April 08, 2022, 12:53:41 PM

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thspfc

Title probably makes no sense, but here's an example. I-39/90 and US-51 in southern Dane County WI:
https://www.google.com/maps/@42.9211345,-89.0849446,2117m/data=!3m1!1e3

https://www.google.com/maps/@42.8722062,-89.0527147,2125m/data=!3m1!1e3

In both instances US-51 is splitting off to the left as you're going north, and to the right as you're going south.


hotdogPi

MA 110/113 on the western side of Methuen, MA where the I-93 interchange is. MA 113 takes the northerly route and 110 the more southerly route on both sides.

I-93/US 3 in Franconia Notch, but only on a technicality as US 3 crosses under I-93 pretty close to the overlap, meaning it's not really that much of a bump.

US 1 and MA 1A in Salisbury/Newburyport MA; 1A hugs the ocean.

Probably the best example of the bunch: MA 122 and MA 140. Both are long NW-SE routes that span a decent chunk of the state; they overlap but never cross.
Clinched

Traveled, plus
US 13, 44, 50
MA 22, 40, 107, 109, 117, 119, 126, 141, 159
NH 27, 111A(E); CA 133; NY 366; GA 42, 140; FL A1A, 7; CT 32; VT 2A, 5A; PA 3, 51, 60, QC 162, 165, 263; 🇬🇧A100, A3211, A3213, A3215, A4222; 🇫🇷95 D316

webny99

The I-80/90 overlap, however you want to look at it:

I-90 exits to the north in both directions - or - I-80 exits to the south in both directions.

SEWIGuy

Quote from: thspfc on April 08, 2022, 12:53:41 PM
Title probably makes no sense, but here's an example. I-39/90 and US-51 in southern Dane County WI:
https://www.google.com/maps/@42.9211345,-89.0849446,2117m/data=!3m1!1e3

https://www.google.com/maps/@42.8722062,-89.0527147,2125m/data=!3m1!1e3

In both instances US-51 is splitting off to the left as you're going north, and to the right as you're going south.


I don't this is what the OP has in mind.  As you head south from Madison on I-39/90, if you exit to the left at the first one, you are heading on US-51 North.  If you exit to the left at the second one, you are heading on US-51 South.

hotdogPi

Quote from: SEWIGuy on April 08, 2022, 01:33:47 PM
Quote from: thspfc on April 08, 2022, 12:53:41 PM
Title probably makes no sense, but here's an example. I-39/90 and US-51 in southern Dane County WI:
https://www.google.com/maps/@42.9211345,-89.0849446,2117m/data=!3m1!1e3

https://www.google.com/maps/@42.8722062,-89.0527147,2125m/data=!3m1!1e3

In both instances US-51 is splitting off to the left as you're going north, and to the right as you're going south.


I don't this is what the OP has in mind.  As you head south from Madison on I-39/90, if you exit to the left at the first one, you are heading on US-51 North.  If you exit to the left at the second one, you are heading on US-51 South.

Except that is the OP...
Clinched

Traveled, plus
US 13, 44, 50
MA 22, 40, 107, 109, 117, 119, 126, 141, 159
NH 27, 111A(E); CA 133; NY 366; GA 42, 140; FL A1A, 7; CT 32; VT 2A, 5A; PA 3, 51, 60, QC 162, 165, 263; 🇬🇧A100, A3211, A3213, A3215, A4222; 🇫🇷95 D316

jmacswimmer

The I-70/I-76 overlap, which I find interesting because it's a little more nuanced but still meets the thread:

At both New Stanton & Breezewood, I-70 initially splits to the north of I-76 to pass thru the toll plaza and connect to its free alignment.  Then once on the free alignment, it passes back under I-76 and ultimately heads off to the south of I-76.
"Now, what if da Bearss were to enter the Indianapolis 5-hunnert?"
"How would they compete?"
"Let's say they rode together in a big buss."
"Is Ditka driving?"
"Of course!"
"Then I like da Bear buss."
"DA BEARSSS BUSSSS"

MATraveler128

MA 2A joins MA 2 from the north at the Concord Rotary and then splits from MA 2 at Exit 125 running north of MA 2.
Decommission 128 south of Peabody!

Lowest untraveled number: 56

SEWIGuy

Quote from: 1 on April 08, 2022, 01:37:11 PM
Quote from: SEWIGuy on April 08, 2022, 01:33:47 PM
Quote from: thspfc on April 08, 2022, 12:53:41 PM
Title probably makes no sense, but here's an example. I-39/90 and US-51 in southern Dane County WI:
https://www.google.com/maps/@42.9211345,-89.0849446,2117m/data=!3m1!1e3

https://www.google.com/maps/@42.8722062,-89.0527147,2125m/data=!3m1!1e3

In both instances US-51 is splitting off to the left as you're going north, and to the right as you're going south.


I don't this is what the OP has in mind.  As you head south from Madison on I-39/90, if you exit to the left at the first one, you are heading on US-51 North.  If you exit to the left at the second one, you are heading on US-51 South.

Except that is the OP...


LOL....yeah I guess so. 

thspfc

Quote from: SEWIGuy on April 08, 2022, 01:33:47 PM
Quote from: thspfc on April 08, 2022, 12:53:41 PM
Title probably makes no sense, but here's an example. I-39/90 and US-51 in southern Dane County WI:
https://www.google.com/maps/@42.9211345,-89.0849446,2117m/data=!3m1!1e3

https://www.google.com/maps/@42.8722062,-89.0527147,2125m/data=!3m1!1e3

In both instances US-51 is splitting off to the left as you're going north, and to the right as you're going south.


I don't this is what the OP has in mind.  As you head south from Madison on I-39/90, if you exit to the left at the first one, you are heading on US-51 North.  If you exit to the left at the second one, you are heading on US-51 South.
1. OP apologizes for giving the wrong example to his own question.

2. It's not possible for you to exit I-39/90 onto US-51 South twice along the same concurrency without turning around. That's just a basic law of every concurrency.

SkyPesos


Bruce

US 2 enters from the north side of I-90 and leaves (with US 395) on the north side.

I-84 and US 30 do this a few times, especially since the latter acts as a business route for areas away from the river while I-84 runs along the shore.

Hobart

US-81 splits off of I-29 in North Dakota, takes a more western route, and rejoins I-29 further north in the state.

https://www.google.com/maps/@48.4781161,-97.2167747,9.71z
This is my signature. There are many like it, but this one is mine.

cockroachking

US-20 and NY-5 would count since the only times NY-5 is not north of US-20 are the two concurrencies.

jlam

CA 99 joins I-5 from the east in Sacramento and departs to the east just north of Sacramento.

webny99

I am noticing a trend: almost all of the submissions so far have been highways that are signed in the same direction as each other (both N/S or both E/W).

Are there any examples of highways that are signed in different directions?

webny99

(Also, a title suggestion, inspired by one of the earlier replies:  routes that overlap but don't cross)

jmacswimmer

Quote from: SkyPesos on April 08, 2022, 08:43:54 PM
Both I-90/I-94 concurrencies

The Wisconsin one yes, but not the Chicago one since I-94 goes south of I-90 heading towards Indiana (and later crosses back to the north side of I-90 at Lake Station).
"Now, what if da Bearss were to enter the Indianapolis 5-hunnert?"
"How would they compete?"
"Let's say they rode together in a big buss."
"Is Ditka driving?"
"Of course!"
"Then I like da Bear buss."
"DA BEARSSS BUSSSS"

webny99

Quote from: jmacswimmer on April 09, 2022, 10:34:00 AM
Quote from: SkyPesos on April 08, 2022, 08:43:54 PM
Both I-90/I-94 concurrencies

The Wisconsin one yes, but not the Chicago one since I-94 goes south of I-90 heading towards Indiana (and later crosses back to the north side of I-90 at Lake Station).

Although ironically it would qualify if it stayed overlapped with I-90 the whole time.

skluth

Quote from: webny99 on April 09, 2022, 09:26:35 AM
I am noticing a trend: almost all of the submissions so far have been highways that are signed in the same direction as each other (both N/S or both E/W).

Are there any examples of highways that are signed in different directions?

The I-44/55 concurrency in St Louis

Hot Rod Hootenanny

Please, don't sue Alex & Andy over what I wrote above

Dirt Roads

Quote from: webny99 on April 09, 2022, 09:26:35 AM
I am noticing a trend: almost all of the submissions so far have been highways that are signed in the same direction as each other (both N/S or both E/W).

Are there any examples of highways that are signed in different directions?

One in North Carolina probably won't be around much longer:  US-70 along I-85 south of Greensboro.  This is much shorter than it used to be when I-85 was previously routed through the Death Valley section of Greensboro.  But if all goes as planned (and approved), US-70 was supposed to be signed along Wendover Avenue and then NC-68 from Greensboro to High Point, avoiding the I-85 multiplex altogether.

Dirt Roads

Quote from: webny99 on April 09, 2022, 09:26:35 AM
I am noticing a trend: almost all of the submissions so far have been highways that are signed in the same direction as each other (both N/S or both E/W).

Are there any examples of highways that are signed in different directions?

Quote from: Dirt Roads on April 10, 2022, 07:30:04 PM
One in North Carolina probably won't be around much longer:  US-70 along I-85 south of Greensboro.  This is much shorter than it used to be when I-85 was previously routed through the Death Valley section of Greensboro.  But if all goes as planned (and approved), US-70 was supposed to be signed along Wendover Avenue and then NC-68 from Greensboro to High Point, avoiding the I-85 multiplex altogether.

Oh, and I forgot that US-70 does it again south of Lexington where I-285 comes in.  US-29 comes along for the ride as well.

hbelkins

Quote from: webny99 on April 09, 2022, 09:26:35 AM
I am noticing a trend: almost all of the submissions so far have been highways that are signed in the same direction as each other (both N/S or both E/W).

Are there any examples of highways that are signed in different directions?

US 60 and US 421 in Frankfort. Going west on US 60, US 421 north comes in from the right and then departs from the right (to be accurate, 421 continues straight and 60 turns left, but the general concept is the same).

Of course, those two routes have a brief concurrency in downtown Lexington where 60 crosses 421, but the Frankfort concurrency fits this category.


Government would be tolerable if not for politicians and bureaucrats.

US 89

I-80/90 in Indiana and Ohio
US 89/91 between Brigham City and Logan UT
US 6/50 between Green River UT and Grand Junction CO
US 129/441 between Eatonton and Athens GA
US 78/278 between Thomson GA and North Augusta SC
US 74/76 between Chadwell and Wrightsville Beach NC

Quote from: webny99 on April 09, 2022, 09:26:35 AM
Are there any examples of highways that are signed in different directions?

Technically, US 52 and US 78 north of Charleston SC since 52 is generally signed N/S where applicable in South Carolina, although neither route is really signed south of that concurrency...

Henry

I-80/I-94 is definitely one. On both ends, I-94 simply runs north of I-80, and at the eastern end, I-80 switches concurrencies with I-90.
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