Highways that exit themselves

[Finrod]

I-90 East left-exits I-90-94 (aka the Dan Ryan Expressway) to go to the Chicago Skyway and the Indiana toll road beyond:

https://www.google.com/maps/@41.7778345,-87.6308443,3a,75y,143.27h,92.5t/data=!3m6!1e1!3m4!1sJVG0RRrEP2nGIMo8VmYqfg!2e0!7i16384!8i8192

Only kinda. Its a Left Exit from the Local Lanes, and a Right Exit from the Express Lanes. Maybe we call it the "Center"  Exit?

And if the Center lanes are I-90, does that not make I-94 the Exit, on the Far Right Local and Far Left Express Lanes?

https://www.google.com/maps/@41.7912279,-87.6313098,3a,75y,184.92h,93.44t/data=!3m6!1e1!3m4!1sRl5Hp0zeBe-w2AGd1pm1uw!2e0!7i16384!8i8192

There used to not be an exit for I-90 from the express lanes.  It must have been added the last time they redid the Dan Ryan.

[ilpt4u]

Technically it is a Slip Ramp from the Express to the Local that becomes the Left-most Exit Only lane for the Locals Left Exit, but it is signed as an exit to the Skyway from the Express lanes

[ethanhopkin14]

On the southwest side of downtown San Antonio, I-10 exits itself to merge onto I-35 north to be cosigned, where US 90 takes over the mainlanes.  It has it's own exit number and everything.


https://goo.gl/maps/pGs92SB33oH3TVk46

[TheGrassGuy]

I-280 Exit 13 in Newark, NJ

[tdindy88]

https://www.google.com/maps/@40.7281001,-86.3823704,1356m/data=!3m1!1e3

Here's a highway where different routes from both sides exit themselves. NB IN 25 exits from the west and NB US 35/WB US 24 exit from the east.

Which also begs the question: What route is the small section in between the two exits?

The Hoosier Heartland Highway.

It would be an interesting question to ask INDOT though.

[GaryA]

CA 23 north on the Moor Park Freeway leaves the limited access grade which becomes CA 118 east on the Ronald Reagan Freeway:

IMG_1340 by Max Rockatansky, on Flickr

Not only does CA 23 north exit the freeway (which becomes CA 118 east), but going the other way, CA 118 west exits the freeway (which becomes CA 23 south).  If you stay on the freeway, the exit numbers seem a little odd.  NB->EB : 17, 19, 20, 19A, 19B;  WB->SB: 19B, 19A, 18, 19, 17.

You can see in Max's picture that the CA 23 ramp is Exit 20A, and the freeway continuation as CA 118 is Exit 20B.  The corresponding BGS the other direction hasn't been updated with exit tabs, though the gore point sign identifies the CA 118 ramp as Exit 18B.

Also, I-210 in Pasadena at the CA 134 (and 710 stub) interchange.

[bwana39]

It is interesting how many highways actually travel through interchanges on ramps while the fast lane goes in the opposite direction. One example would be I-40 and Sam Cooper Blvd in Memphis, I-79 west junction with I-70, and I-40/65 west in Nashville.

First, Sam Cooper was going to be the route for I-40 until the community activists stopped the through freeway.

Second, In spite to turning off to stay on.  Keeping the farthest left lanes being the through route of an interstate is not necessarily the most economical or even the best for traffic flow.


When they redid the I-20EB / I-635NB  intersection they deleted the simple right on I-20. Now you keep left to turn right.  Probably half of the time I come through that intersection, I stay right and wind up on I-635.  I might add that as much or more of the traffic coming into that intersection keeps travelling North as that which veers east on I-20.

Thirdly, I-55 on the other side of town is FAR worse.

[MikieTimT]

I-49 in the Joplin, MO area.  Especially notable northbound.  Faster to leave the Interstate to rejoin it later using MO-249.  Sure would be nice for them to fix the Carthage interchange and just move I-49 to it.

[Hwy 61 Revisited]

I-49 in the Joplin, MO area.  Especially notable northbound.  Faster to leave the Interstate to rejoin it later using MO-249.  Sure would be nice for them to fix the Carthage interchange and just move I-49 to it.

<fictional>
Carthage could have easily been at least a 7/8 cloverleaf.
</fictional>

[roadman65]

Plenty of examples of that.  All the interstates that exit toll roads for Free freeways.  I-35 in Emporia, KS.

I-80 in OH and IN.
I-90 in OH and NY.
I-87 in NY (twice in one interchange NB)
I-55 in Memphis 2X.
I-83 in PA.  (Used to be one in York, but PennDOT fixed that)
I-83 in MD 2X
I-95 Local lanes SB in Fort Lee, NJ at NJ 4
I-95 in Springfield, VA.
I-395 in DC.
I-69 in MS 2X SB and once NB.
I-287 in NY 2X
I-295 NB in NJ (as the other instances in Bellmawr are soon to be remedied)
DE 1 in Delaware (at US 13 split near State Road)
I-93 in NH
I-90 in MT.
I-79 in PA.
I-64 in WV (though more of an even split with the two SB roads running parallel to each other, but still an exit though)

Many more I am sure.  Many mentioned, but to point out it is very common.

[TEG24601]

https://www.google.com/maps/@40.7281001,-86.3823704,1356m/data=!3m1!1e3

Here's a highway where different routes from both sides exit themselves. NB IN 25 exits from the west and NB US 35/WB US 24 exit from the east.

Which also begs the question: What route is the small section in between the two exits?

The Hoosier Heartland Highway.

It would be an interesting question to ask INDOT though.

I would suspect that officially it is either SR 25 or US 24.  Although INDOT does have the audacity of removing designations from highways, so maybe they gave it over to "Local Control".

[KCRoadFan]

Plenty of examples of that.  All the interstates that exit toll roads for Free freeways.  I-35 in Emporia, KS.

I-80 in OH and IN.
I-90 in OH and NY.
I-87 in NY (twice in one interchange NB)
I-55 in Memphis 2X.
I-83 in PA.  (Used to be one in York, but PennDOT fixed that)
I-83 in MD 2X
I-95 Local lanes SB in Fort Lee, NJ at NJ 4
I-95 in Springfield, VA.
I-395 in DC.
I-69 in MS 2X SB and once NB.
I-287 in NY 2X
I-295 NB in NJ (as the other instances in Bellmawr are soon to be remedied)
DE 1 in Delaware (at US 13 split near State Road)
I-93 in NH
I-90 in MT.
I-79 in PA.
I-64 in WV (though more of an even split with the two SB roads running parallel to each other, but still an exit though)

Many more I am sure.  Many mentioned, but to point out it is very common.

Also I-70 in Kansas, westbound approaching Topeka.

[sprjus4]

I-95 in Springfield, VA.

Debatable. While I-95 does follow the Eastern Beltway, I-95's movements are fully continuous, I.E keep left to continue.

[idk]

Westbound I-70 in Washington, Pennsylvania.

[idk]

Westbound I-70 in Washington, Pennsylvania.

Also, I-80 in Portage, Indiana.

[jmacswimmer]

Westbound I-70 in Washington, Pennsylvania.

Do you mean I-79?

[crispy93]

* I-278 does this w/b at the Grand Central in Astoria

* The Taconic southbound at the Sprain: https://goo.gl/maps/ba6AejpzSppqHzXy9 there was a left-pointing Exit 2 gore sign but that didn't last long.

* The Bronx River Parkway n/b at the Sprain exits to the right and ends its limited-access section

[BrianP]

Maryland has a few of these, depending on how the OP has defined things:

- MD 140 exits itself at the northern terminus of I-795 west of Reisterstown.
- I-95 exits its Capital Beltway incarnation in College Park.
- US 301 exits itself in Bowie.
- US 391 also exits itself north of Waldorf.
- US 50 exits itself in Queenstown.
- MD 24 exits itself in Bel Air.

One that I hadn't noticed until today, I-695 outer loop at I-97.
Another one for I-695 is inner loop at MD 702

[wanderer2575]

https://www.google.com/maps/@40.7281001,-86.3823704,1356m/data=!3m1!1e3

Here's a highway where different routes from both sides exit themselves. NB IN 25 exits from the west and NB US 35/WB US 24 exit from the east.

Which also begs the question: What route is the small section in between the two exits?

In Michigan, it would be a connector with an internal MDOT designation (e.g. Connector 24) but no actual route number assigned.

[Hwy 61 Revisited]

I actually have a simple criterion for which highway is the dominant one: the left-lane rule.


Simply put, if the left lane of any highway (discounting exit lanes) goes to a different highway number than the highway that was signed before, the highway exits itself and leaves a more dominant highway. However, if the left lane of the second highway in the opposite direction enters the other highway, both highways are dominant.


An example of a clearly-dominant interchange would be Exit 304 on I-80 in Pennsylvania. A codominant interchange would be that of PA 33 and US 209 a few miles southbound of Exit 304. A recessive interchange would be Exit 47A on I-80 in New Jersey, where I-80 exits from itself, and the left lane goes onto 280.

[zachary_amaryllis]

what about the i-80/76 split near big springs, NE.. this seems like it sort of qualfies..

https://goo.gl/maps/D2EpmWKqcyC99UHV9

[Joe The Dragon]

Technically it is a Slip Ramp from the Express to the Local that becomes the Left-most Exit Only lane for the Locals Left Exit, but it is signed as an exit to the Skyway from the Express lanes

before that you need to go all the way over the slip point not as close. and the other side did not have an direct link to express

[NWI_Irish96]

I kept thinking of more examples in Indiana so I deleted my previous posts and am consolidating here.

US 24/35 and IN 25 both exit off the Hoosier Heartland highway just southwest of Logansport.
US 20 and IN 2 exit themselves at an interchange in Rolling Prairie
IN 933 exits itself off Eddy St in South Bend (also ending a wrong-way concurrency)
US 41 exits itself twice, once at each end of IN 63 north of Terre Haute, and once at an interchange at Vincennes, where US 50 exits itself once and US 150 exits itself twice within a mile.

[cjk374]

Before I-530 was born, US 65 was THE highway connecting Little Rock and Pine Bluff, AR. It was an interstate-grade (for the 60s when built) road until you got to Pine Bluff, where you were welcomed into town with big warning signs: WARNING: 8 TRAFFIC LIGHTS NEXT 6 MILES. Those 6 miles were known as The Martha Mitchell Expressway.

In the mid 90s, AR started building the Pine Bluff bypass that would become the final 11 miles of I-530. The first step was to build a new exit to keep US 65 southbound as a through-route while the bypass was being built. (north bound stayed on its original route during this time) This new exit was designated as an exit for the continuing US 65 at the time (an all-traffic exit, yes...but it still has BGSs with US 65 and "Pine Bluff" as the lone destination). When the bypass opened, the US 65 shield was changed to US 65B.

https://maps.app.goo.gl/eoso9FUTpWLAYJdEA

Of course, since AR refuses to sign concurrencies,  the I-530 BGS lists all US 65 destinations.

During the last 11 miles,  US 79 & US 63 merge with I-530/US 65. So at the end of I-530, the last exit has US 79 & US 63 exiting the main lanes and continuing up the Martha Mitchell Expressway north bound briefly until they both turn off by the Pine Bluff mall.

https://maps.app.goo.gl/MQJ8u3AHAXpV24FM9

[ethanhopkin14]

US 59 south of Nacogdoches, TX exits to a surface street version of itself at a diamond interchange. 

https://goo.gl/maps/HkQESGJ7toF9uXRdA