Unusual Exit Numbers

[roadman65]

I once remember US 258 in Hampton, VA having letter exit numbers for all of its intersections.  Northbound would have double letters like "AA" and "BB" etc.  Southbound toward the James River would be single letters all using the 26 letters of the alphabet. I do not know if still exists to this day.

I know the Brigantine Connector in Atlantic City, NJ uses letters only.

Then in Orlando, FL 436 has exit numbers for FL 528 even though it is not freeway and the fact there are no other exit numbers along FL 436.

[PurdueBill]

Two exits on OH 2 near Lorain had exit numbers while no others did; Exits 7 and 10 based on the county-based mileposts of the route.  Now more exits on the route are being numbered based on the overall mileage from the Indiana line, so those oddball exit numbers will have to eventually go if they do number everything.  (That will probably not happen for quite a while.)  As it stands, Exit 10 is 40 miles east of Exit 125!

[Brandon]

The end of both I-474 and IL-6 at I-74 on the west side of Peoria, IL uses Exit A and Exit B instead of 1 or 0 as both I-474 and IL-6 start at that interchange.

[HighwayMaster]

I once remember US 258 in Hampton, VA having letter exit numbers for all of its intersections.  Northbound would have double letters like "AA" and "BB" etc.  Southbound toward the James River would be single letters all using the 26 letters of the alphabet. I do not know if still exists to this day.

I was on that road a couple of weeks ago and I did not see any letters on it. I went on the part from the JRB to I-64.

[Scott5114]

I-244 used to start its exit numbering from the mile marker where it branched off of I-44, not at zero, and in turn I-444 started its numbering from where it branched off of I-244. When I-44 was extended, I-244's numbering was adjusted to be more normal, but since I-444 just had suffixes of 94 and 96, they just pulled off the numbers and left the suffixes. However there was one sign where this was not possible, so it was left as-is, leaving I-444's first four exits as "A", "B", "C", and "94D". Even after they replaced most of the button copy signs with new ones (with no exit numbers at all) the 94D sign stayed up for a while, leading to just one numbered exit, 94D, in a string of unnumbered exits.

[Alps]

Park Ave. has A-B exits in State College, PA. This also happens at US 22/219 in Ebensburg (I think) and US 422/219 in Indiana. No other lettered or numbered exits on any of those highways. (Park Ave. is by the I-99/US 322 junction). I-76 Exit 354 is the first exit in New Jersey. Same state, I-195 Exit 60 is the westernmost exit on the freeway.

[WillWeaverRVA]

I once remember US 258 in Hampton, VA having letter exit numbers for all of its intersections.  Northbound would have double letters like "AA" and "BB" etc.  Southbound toward the James River would be single letters all using the 26 letters of the alphabet. I do not know if still exists to this day.

I was on that road a couple of weeks ago and I did not see any letters on it. I went on the part from the JRB to I-64.

It doesn't exist today; all the interchanges along US 258 in Hampton and Newport News use green signs identifying the street, with trailblazers for numbered routes. There's no mention of it on the Virginia Highways Project page about US 258 and I don't know the area enough to know whether it ever existed.

[NE2]

The US 98 'bypass' around Panama City Beach has major intersections signed with exit letters. Two photos from aaroads:

[Hot Rod Hootenanny]

US 23 having exit 23 at I-270 on the northside of Worthington.


And yes the button copy Indianapolis sign is still there...in both directions on US 23.

[vdeane]

NY 17.  Before PA switched to distance-based numbers, it went 1 (at I-90), 2, 4, 6, 7, etc. with still more gaps at exit 22, 55, etc.  Some at-grades have numbers (Hale Eddy is hidden 85 and 86, Parksville was 98, Horseheads was collectively 53, etc.) while others did not (such as Newton Battlefield).  It's as if the DOT had no clue what the freeway was going to look like when the numbers were installed.

[akotchi]

The Pennsylvania Turnpike has an unusual exit numbering sequence WB in the Philly area

351
343
340
339
20
333
326

The oddball is the milepost on I-476 of the Mid-County toll plaza; otherwise there would be two different exit numbers for that plaza.

It is only signed as Exit 20 on the mainline in three places in the sequence.

[Bickendan]

A/AP-7 in Spain. This one really takes the cake.

[Alex]

Texas Toll 130 and its exit numbers in the 400s.

[NE2]

There may still be some strange high numbers on US 59 north of Houston.

[myosh_tino]

How about California Route 65 in Roseville, CA?  The first exit north of I-80 is numbered 307.  That would be odd unless the driver knew Route 65 begins just north of Bakersfield, CA and has a major gap (approx 230 miles) in it.

Also the western-most exit on I-380 is exit 5 because there a slim, slim, SLIM chance of I-380 being extended east WEST to CA-1.

Edit: Dumb... so dumb... ...and thanks for pointing that out "National Highway 1" 

[national highway 1]

Also the western-most exit on I-380 is exit 5 because there a slim, slim, SLIM chance of I-380 being extended east to CA-1.

Actually, I-380 could be extended WEST to CA 1.

I-17's exit numbers begin at 194 due to a branching exit number system from when it was AZ 69, which branched off the then US 89.

[english si]

A/AP-7 in Spain. This one really takes the cake.

As I have said before, it's only weird if you don't see the state boundaries and the fact that it's two different freeways with different zero points. That the distance-based numbers don't reset at state lines is unusual though - but of course pretty logical from a navigation standpoint, unlike the states.

I've never liked the French exits 15.1, etc. They deliberately use 1500m on signs, rather than 1,5km to avoid using the little comma, then use .1, .2 instead of A, B suffixes for later additions in the sequential numbering, with the periods - smaller character than commas. The French also use a branching system some of the time, and not at other times.

The Northern Irish M1 - while there are not a small number of missing junctions numbers in the British Isles where planned junctions weren't built* and unbuilt sections mean you start at 4 or 7** - used to go 1, 2, 3, gap, 6, 7, gap, 9, 10, 11, 12, 13, 14, 15. A different junction 8 has since been built, but the gap between 3 and 6 is still there.***

*GB: M1 3, M4 31 M27 6, M55 2, M56 13, M58 2, M61 8. NI: M1 4, M1 5, M2 3. RoI: M6 18 (u/c), M7 20, M8 2

**Missing junction numbers are: GB M8 7 (soon-to-be upgraded section of A8 has 3 junctions for this one gap), M11 1-3, M23 1-6, M25 1 (A282 has the junctions, numbered 1A and 1B), M62 1-3, A1(M) 11-13, A1(M) 18-33, A1(M) 39, A1(M) 52-55 (only 2 junction for these numbers). NI M2 8-9. RoI other than M/N11 the gaps in Mx are filled by Nx and there's no actual numbering gaps.

***Other places where this has happened are: GB M62 J8. NI M2 7.

[TheStranger]

Also the western-most exit on I-380 is exit 5 because there a slim, slim, SLIM chance of I-380 being extended east WEST to CA-1.

What's INTERESTING about this:

Route 14 and I-380 both have on-paper extensions that will likely never be built...

Yet Route 14's exit numbering has the first numbered exit in Sylmar, completely ignoring the unconstructed segment through Reseda...while I-380's acknowledges planned a segment that has been dormant for years that, if built, would cross the San Andreas Fault!

[1995hoo]

Exit 155P on the Garden State Parkway. There's a separate Exit 155 nearby (to the north of 155P). I think I read somewhere, might have been on this forum, that the unusual "P" suffix when no other suffix is in use there was intended to denote that the exit leads to a freeway connection into Paterson.

[PHLBOS]

Exit 155P on the Garden State Parkway. There's a separate Exit 155 nearby (to the north of 155P). I think I read somewhere, might have been on this forum, that the unusual "P" suffix when no other suffix is in use there was intended to denote that the exit leads to a freeway connection into Paterson.

I believe that is correct.

[okroads]

http://g.co/maps/e9xb7

Exits A&B in Roswell, NM off of U.S. 70 West

[roadman65]

Well, I forgot about this one, but in Deltona, Florida on I-4 there used to be Exits 53 CA & CB.  It was intended as the whole interchange being Exit 53C, with two ramps for it.  However, I do not know why it was not 53A or better yet 53 A for EB Saxton Boulevard and 53B for WB Saxton?

Even in Sanford, further west the exit for newly added CR 46A, that was in between Exits 50 and 51, had exit 51A and not 50A as the sequence called for.

Thank God for the change in exit numbering that put things sort of right.  I say that cause the interchanges for CR 46A, SR 417, and SR 46 all have Exit 101 spite they are all separate interchanges spread out over 2 miles at least.  It is, though, the fact that each exits ramps are long and are part of the same c/d roads for the first two exits passed.  That is FDOT's way of keeping one exit travelers off the interstate.  Hence, the long SR 435 SB to WB I-4 ramp passing the first exit for SR 482 off of I-4 near Universal in Orlando.

[6a]

Does I-865 in Indy still have mile markers/exits in the 900's?  Even if it doesn't, it would be a historical oddity.

[Bickendan]

A/AP-7 in Spain. This one really takes the cake.

As I have said before, it's only weird if you don't see the state boundaries and the fact that it's two different freeways with different zero points. That the distance-based numbers don't reset at state lines is unusual though - but of course pretty logical from a navigation standpoint, unlike the states.

A/AP-7 is special even with that in mind because both routes have two different 0 origins (one at the French border, the other 100 km away from A-7's western terminus in Algerciras) with overlaps in the middle and a mixture of distance and sequential series. This is excluding areas where A-7 takes N-340's exit numbers. Having drafted the two routes for the Clinched Highways, it was a spectacular mess to figure out.

[Michael]

NY 17.  Before PA switched to distance-based numbers, it went 1 (at I-90), 2, 4, 6, 7, etc. with still more gaps at exit 22, 55, etc.  Some at-grades have numbers (Hale Eddy is hidden 85 and 86, Parksville was 98, Horseheads was collectively 53, etc.) while others did not (such as Newton Battlefield).  It's as if the DOT had no clue what the freeway was going to look like when the numbers were installed.

The first exit in NY is still Exit 4.  This is the only place I know of where a road's exit numbering doesn't reset at a state line.  See Upstate NY Roads for an exit listing of I-86/NY 17.