Matching exit numbers of two intersecting highways.

[Janko Dialnice]

The thread about exit numbers matching their intersecting route numbers had me thinking about another road trivia question.

How many cases do you know of where, at the junction of two freeways, both have the same exit number?

There are two that I know of off-hand.
I-95/MA 128 and I-93 in Massachusetts (Exit 37).
US 23 and I-270 in Ohio (Exit 23), illustrated in the "Matching exit numbers and highway numbers" thread.

If you consider the cases where a multiplex splits, or where a toll road changes number, I can add two more.
I-80 and I-90 in Ohio (Exit 142).
I-76 and I-276 in Pennsylvania (Exit 326).

There is also one that might have been the case, but I cannot remember.
I-76 and I-83 in Pennsylvania, before the changeover to milepost-based exit numbers (Exit 18).

Are there any others?

[OracleUsr]

Georgia used to have one before going to mileage based #'s.  I-285 at I-20 on the east side of Atlanta both had exit 35A/B on them.

Also, Lincoln, NE, has a rather odd one.  I-180 at I-80 is numbered 401 for both interstates (401 C/D for I-180 and 401 A/B for I-80).  The odd part is that the high number on I-180 is because it takes the number I-80 has at that intersection.

[NE2]

I-95/MA 128 and I-93 in Massachusetts (Exit 37).

This was also exit 37 on Route 128 under the previous numbering increasing from north to south.

[jdb1234]

If you consider the cases where a multiplex splits, or where a toll road changes number, I can add two more.
I-80 and I-90 in Ohio (Exit 142).
I-76 and I-276 in Pennsylvania (Exit 326).

I can add one more:

I-20 and I-59 in Birmingham (Exit 130)

[roadfro]

There are no locations in Nevada that fit this scenario. Chalk that up to the relative lack of freeways in Nevada as compared to many other states.

[pianocello]

US 23 and I-270 in Ohio (Exit 23), illustrated in the "Matching exit numbers and highway numbers" thread.

In LA, Exit 40 in I-55 is to LA-40.

[1995hoo]

If you count a multiplex splitting/joining, then the College Park Interchange in Maryland between I-95 and I-495, at which I-95 leaves the Beltway heading northbound and joins it heading southbound, would count. I-495 draws its numbers from I-95 through there since the latter is the primary route. That is, the first exit in Maryland on the multiplex is Exit 2 and it builds up to Exit 27, at which point I-95 heads north to Baltimore and continues the exit numbering sequence. I-495 continues around the Beltway and likewise continues the exit numbering sequence. The "I-495-only" portion of the Inner Loop approaching from the west therefore uses the same Exit 27 number for traffic heading onto northbound I-95 towards Baltimore.

(Unlike at the corresponding Springfield Interchange in Virginia that contains the other end of the multiplex, Maryland does not number the thru lanes of I-495 as an "exit" in either case. Virginia has periodically numbered the thru lanes of the Beltway as an "exit" with various numbers over the years as the exit numbering schemes have changed, but they're inconsistent about it even now, as the Outer Loop has no such numbers and the Inner Loop does.)

[Fleetwood Mac Attack]

This doesn't involve intersecting highways, but it does involve oddly matching exit numbers which I'm sure 1995hoo can appreciate: the University of Virginia and Virginia Tech both are accessed via Exit 118B off their respective interstates (I-64 and I-81). Weird...

[1995hoo]

This doesn't involve intersecting highways, but it does involve oddly matching exit numbers which I'm sure 1995hoo can appreciate: the University of Virginia and Virginia Tech both are accessed via Exit 118B off their respective interstates (I-64 and I-81). Weird...

I haven't been to Blacksburg since 1994 and so I never noticed that. I've driven past the Blacksburg area on I-81 a few times since en route to destinations further south, but I've never really pay any attention to the VPI signs because I haven't been headed there. Interesting coincidence, though.

[vtk]

US 23 and I-270 in Ohio (Exit 23), illustrated in the "Matching exit numbers and highway numbers" thread.

I still think that one's a mistake.  US 23 isn't a freeway or even an expressway there; it doesn't have "exits" so it shouldn't have exit numbers.  I suppose someone probably thought the mileage coincidence was too good to pass up; indeed, US 23's county-based mileage is about 22.9 at that interchange.  (I-270's exit number for that interchange was fudged a bit; following the rules exactly, the OH 315 interchange should be exit 23, and the US 23 interchange should be exit 24...)

This interchange will be rebuilt as a partial cloverleaf in a few years.  I doubt the new signage will assign an exit number to the I-270 entrance ramps.

[sandiaman]

  Here's one for you:    Exit 57    on  I-10  is  also  MS  57  near the town of Ocean  Springs, Mississippi.

[vtk]

The thread about exit numbers matching their intersecting route numbers had me thinking about another road trivia question.

...

Here's one for you:    Exit 57    on  I-10  is  also  MS  57  near the town of Ocean  Springs, Mississippi.

I think that goes in the thread referenced in the original post.  Which I can't seem to find...

[Central Avenue]

US 23 and I-270 in Ohio (Exit 23), illustrated in the "Matching exit numbers and highway numbers" thread.

I still think that one's a mistake.  US 23 isn't a freeway or even an expressway there; it doesn't have "exits" so it shouldn't have exit numbers.  I suppose someone probably thought the mileage coincidence was too good to pass up; indeed, US 23's county-based mileage is about 22.9 at that interchange.  (I-270's exit number for that interchange was fudged a bit; following the rules exactly, the OH 315 interchange should be exit 23, and the US 23 interchange should be exit 24...)

This interchange will be rebuilt as a partial cloverleaf in a few years.  I doubt the new signage will assign an exit number to the I-270 entrance ramps.

I remember seeing that one when I was, like, 10 years old and assuming it was only marked "exit 23" to match the number on I-270 (I didn't really understand how exit numbers worked at that age). It wasn't until I was like 14 that I noticed one of the sign supports marked "23 SB, 22.9".