A-B Exits in Different Counties

[sbeaver44]

Driving I-83 in PA lately got me thinking.  Exit 40A - Limekiln Rd (which, IMO should be 39C) is in York County, while Exit 40B - New Cumberland is in Cumberland County.  The Yellow Breeches Creek is the county line, and is between those two exits.

How often are the -A and -B exits on a road in different counties?

I would have course argue that Limekiln Rd and New Cumberland are unrelated interchanges, but nonetheless, they are split between counties, despite both being Exit 40x.

[SkyPesos]

Couple quirks from St Louis city and county being separate from each other:

- I-64 WB: Exit 33C is in St Louis City, Exit 33A is in St Louis County
- I-55 SB: Exit 201B in St Louis City, Exit 201A in St Louis County

[1995hoo]

While the ramps don't have exit numbers, the interchange that immediately came to mind for me is the US-29 Bypass/US-29 Business/US-58 Bypass interchange just south of Danville, Virginia. The North Carolina state line passes through the interchange just south of the bypass. If you're coming south on US-29 Business, the first ramp (to westbound US-58) is in Virginia and then the second ramp (loop ramp to northbound US-29 Bypass and eastbound US-58) originates across the state line in North Carolina but crosses back into Virginia as you loop around. Similarly, if you're coming north on US-29, the first ramp (technically the mainline, as it's a TOTSO situation) leaves the mainline in North Carolina and crosses the state line before joining the bypass, and the second ramp (a loop-around to westbound US-58) is fully within Virginia.

[vdeane]

Exits 19A and 19B on the Hutchinson River Parkway aren't just in different counties, they're in different states.  Exit 19B is technically on the Merritt Parkway in Connecticut.

[Dirt Roads]

Exits 19A and 19B on the Hutchinson River Parkway aren't just in different counties, they're in different states.  Exit 19B is technically on the Merritt Parkway in Connecticut.

Pedro says hi!  Exit 1 on southbound I-95 at the North Carolina border with South Carolina has Exit 1B in Robeson County (North Carolina) and Exit 1A in Dillon County (South Carolina).  And this one should go in the <Geographic Oddities> thread:  the off-ramp from Exit 1A curls back into North Carolina where it meets US-301/US-501.  Assuming you meant to go see Pedro at South of the Border, you turn right and go under the Interstate back into South Carolina.  But it looks like you can make the left turn toward South Carolina from Exit 1B, and also make the left turn to stay (ergo, head back north) in North Carolina from Exit 1A. 

[elsmere241]

Pedro says hi!  Exit 1 on southbound I-95 at the North Carolina border with South Carolina has Exit 1B in Robeson County (North Carolina) and Exit 1A in Dillon County (South Carolina).  And this one should go in the <Geographic Oddities> thread:  the off-ramp from Exit 1A curls back into North Carolina where it meets US-301/US-501.  Assuming you meant to go see Pedro at South of the Border, you turn right and go under the Interstate back into South Carolina.  But it looks like you can make the left turn toward South Carolina from Exit 1B, and also make the left turn to stay (ergo, head back north) in North Carolina from Exit 1A. 

Sort of related, I was once "membership clerk" for a church congregation that had the eastern part of Raleigh, NC inside the Beltine, and then went north.  Looking over the records, Dillon, SC, far and away, was the most common place members had married outside one of our temples.  That cut across all the demographics.

[Revive 755]

I-94 EB may have one in Illinois depending where one cosiders the start of the 'B' exit to occur:

• 25A for Lake Cook Road is in Lake County
• 25B for I-294 SB could be considered to occur in Cook County.

EDIT: I-80 at IL 43 qualifies.  The 'B' Exits are in Cook County while the 'A' Exits are in Will County.

EDIT 2:  I-55 at County Line Road and Joliet in Illinois also qualifies.  The 'A' Exits are in DuPage County, the 'B' Exits are in Cook County, the northbound 'C' Exit is in Cook County.

[jmacswimmer]

Once the new I-90/I-495 interchange in MA is complete, this will happen on I-90/Mass Pike westbound:
-The new exit 106B will be in Worcester County
-The new exit 106A (and most of the other new ramps) will be in Middlesex County

[chrisdiaz]

Interstate 20 in South Carolina, at its intersection with I-26. Exit 64, A in Lexington County and B in Richland County

[Road Hog]

This could have been extended to different states, but Exit 224 on I-30 at State Line Road in Texarkana was reconstructed several years ago. I don't remember whether or not it was a full clover before.

[TheCatalyst31]

I-94 EB may have one in Illinois depending where one cosiders the start of the 'B' exit to occur:

• 25A for Lake Cook Road is in Lake County
• 25B for I-294 SB could be considered to occur in Cook County.

EDIT: I-80 at IL 43 qualifies.  The 'B' Exits are in Cook County while the 'A' Exits are in Will County.

EDIT 2:  I-55 at County Line Road and Joliet in Illinois also qualifies.  The 'A' Exits are in DuPage County, the 'B' Exits are in Cook County, the northbound 'C' Exit is in Cook County.

Also in the Chicago area, there's the strange case of Exits 14 A-B on I-290. The westbound exits are in Cook County, while the eastbound exits are in DuPage County, so they fit the letter but not the spirit of the thread.

[webny99]

It's not an A-B exit, but I-490 Exit 2 EB ramps are in Monroe County, while the WB are in ramps Genesee County due to I-490 straddling the county line.

[kphoger]

How often are the -A and -B exits on a road in different counties?

This was fun.  In Missouri...

On I-35, the A exit is in Harrison County, whereas the B exit is in bordering Daviess County.

On I-44, the A & C exit is in Laclede County, whereas the B exit is in bordering Webster County.

[Dirt Roads]

Not quite what the O.P. was looking for but...

The northbound Exit 49 for PA-576 is in well into Washington County, whereas the southbound Exit 49 from I-79 to PA-576 is in Allegheny County.  The exits for the Southern Beltway to I-79 are already constructed and it looks like the exit from northbound PA-576 to I-79 is Exit 18 in Washington County, whereas the exit to southbound I-79 is Exit 19 in Allegheny County.  On the flip side (southbound PA-576), Exit 19 to southbound I-79 is still just barely inside of Allegheny County, whereas Exit 18 to northbound I-79 is again well into Washington County.

Looking into the future, the genie will grant the O.P. a wish.  A new Exit 49A will be from I-79 to [eastbound] PA-576 well into Washington County, whereas current Exit 49 that is in Allegheny County will get renumbered to Exit 49B.  Or maybe this will be like other freeways in Pennsylvania that are forever to remain stubs to nowhere.

[Dirt Roads]

And looking further up I-79, I wonder why did never noticed this one:

Exit 77 from northbound I-79 to the Pennsylvania Turnpike is still in Allegheny County, whereas Exit 77 from southbound I-79 to the Turnpike is in Butler County.  But on the Turnpike side, the Cranberry interchange (formerly Exit 3) to both US-19 and I-79 is well into Butler County. 

Geesh, I always thought that all of this was in Beaver County.  I had the railroad territory right next to here.

[Dirt Roads]

It gets even crazier at the Philadelphia Airport.  Heading northbound on I-95, Exit 10 for the Airport and PA-291 is in Delaware County but southbound on I-95, it's Exit 14 for Bartram Avenue way up into South Philly (not posted for PA-291 but really the best way to get there).  But between and heading southbound on I-95 you've got a single exit in Philadelphia (consolidated city and county) that heads to the collector lanes then exits again for Exit 12A (Airport) and Exit 12B (Cargo City and another iteration of PA-291).  If take Exit 12A, you eventually wind up in Delaware County only to blend mix back into the northbound traffic from Exit 10.

[webny99]

Of course, the NYS Thruway also has few of these due to the various -A and -B exits that have been added over time.

Exit 25 is in Albany County, Exit 25A is in Schenectady County
Exit 29 is in Montgomery County, Exit 29A is in Herkimer County
Exit 34 is in Madison County, Exit 34A is in Onondaga County

And the oddest of them all: Exit 21 and Exit 21B are in Greene County, while Exit 21A is in Albany County.

[Rothman]

Of course, the NYS Thruway also has few of these due to the various -A and -B exits that have been added over time.

Exit 25 is in Albany County, Exit 25A is in Schenectady County
Exit 29 is in Montgomery County, Exit 29A is in Herkimer County
Exit 34 is in Madison County, Exit 34A is in Onondaga County

And the oddest of them all: Exit 21 and Exit 21B are in Greene County, while Exit 21A is in Albany County.

Meh.  Not the same.

[michravera]

Driving I-83 in PA lately got me thinking.  Exit 40A - Limekiln Rd (which, IMO should be 39C) is in York County, while Exit 40B - New Cumberland is in Cumberland County.  The Yellow Breeches Creek is the county line, and is between those two exits.

How often are the -A and -B exits on a road in different counties?

I would have course argue that Limekiln Rd and New Cumberland are unrelated interchanges, but nonetheless, they are split between counties, despite both being Exit 40x.

In California, major roads often form county lines. It's also common to have two exits (a direct right and a cloverleaf) for the same road. In addition, California gives exit numbers on (almost) all freeways, not just interstates. So, this type of thing rates to be fairly common. One near my house is Dixon Landing Road (which forms the county line between Alameda and Santa Clara counties) along I-880.

[Dirt Roads]

Surprised that nobody picked this one up yet.  On westbound [northbound] I-40 in the far southeast part of Durham, Exit 283B (I-540 eastbound) is in Wake County and Exit 283A (NC-540 southbound, former I-540) is in Durham County.   Coming from the other direction, the Exit 283A and Exit 283B split is well into Durham with a flyover that just shaves off a piece of Wake as it hits I-540.

What is weirder is that the Durham city limits extend slighty into Wake County so as to incorporate almost the entire interchange, but don't pick up the exit ramp for Exit 283B and its gore.  The ramp from NC-540 to I-40 eastbound [southbound] is the border between Durham and Morrisville.  But as of today, none of this interchange is within the borders of Morrisville (but it wouldn't surprise me if someday Raleigh grabs the unclaimed portion of the [eastern] portion of this interchange.

[elsmere241]

What is weirder is that the Durham city limits extend slighty into Wake County so as to incorporate almost the entire interchange, but don't pick up the exit ramp for Exit 283B and its gore.  The ramp from NC-540 to I-40 eastbound [southbound] is the border between Durham and Morrisville.  But as of today, none of this interchange is within the borders of Morrisville (but it wouldn't surprise me if someday Raleigh grabs the unclaimed portion of the [eastern] portion of this interchange.

I was living in either Apex or Raleigh when Durham started to reach in to Wake County.  Who annexes what depends on where the water mains are.

[Dirt Roads]

I was living in either Apex or Raleigh when Durham started to reach in to Wake County.  Who annexes what depends on where the water mains are.

Good opportunity to update my Who-goes-Where list:

• Raleigh crosses from Wake County into Durham County.

• Durham crosses from Durham County both west into Orange County and east into Wake County.  Durham now also touches the Chatham County line in two sections.

• Research Triangle Park (unincorporated, incorporated as two private entities) crosses from Durham County into Wake County.  In spite of the state law, the Durham city limit extends into RTP down near Hopson Road.

• Cary crosses from Wake County into Durham County, and now crosses southward into Chatham County.
• Apex now crosses from Wake County westward into Chatham County
• Morrisville crosses from Wake County westward into Durham County, which is now much larger than the sliver the last time I reported.

• Chapel Hill crosses from Orange County into Durham County and now has an exclave that is very close to the Chatham County line.

[Road Hog]

Sounds like NC has the same crazy-quilt governmental overlap that Texas does. Cities spill across county lines and school districts spill from one city to the next. Never mind the craziness of U.S. and state legislative boundaries and county commissioner precinct maps.

[freebrickproductions]

Sounds like NC has the same crazy-quilt governmental overlap that Texas does. Cities spill across county lines...

(Emphasis mine)

I'd honestly be shocked if that wasn't the case in more of the country. Alabama's definitely similar to North Carolina and Texas in that way as well, as cities aren't bound by the borders of the county they're in. In fact, my hometown of Huntsville, which is the county seat of Madison County, now extends into Limestone, Morgan, and Marshall Counties thanks to all of the land the city's annexed, and it seems they're aiming to extend into Jackson County next.

[Dirt Roads]

Sounds like NC has the same crazy-quilt governmental overlap that Texas does. Cities spill across county lines and school districts spill from one city to the next.

As far as I can tell, North Carolina doesn't have any school districts that cross county lines.  Residents of Chapel Hill in Durham County pay taxes in Durham County and are served by Durham County Schools (which wasn't consolidated with Durham City Schools until 1992).  But I highly suspect that there are some folks in that section of Chapel Hill that choose to take their kids over the Chapel Hill-Carrboro School District, one of the few districts that has not yet consolidated with their local county.  I haven't heard yet, but it wouldn't surprise me if negotiations to merge Chapel Hill-Carrboro with Orange County Schools are underway, since recently the county school buses have surplanted the city school buses for most of that district.