One Movement Only - Does it Exist Anywhere Else?

[roadman65]

Harrison, NJ has one on Fourth Street to I-280 Westbound.  Although the WB Exit for Exit 16 is nearby, that particular ramp fills in for the missing movement at the Harrison Avenue interchange about a mile to the west.  So, in one matter of looking at it one might say it qualifies, but in the other you cannot exit Eastbound on I-280 to Fourth Street and exiting at Harrison Avenue requires you to go a short distance east on Harrison Avenue to reach Fourth Street where it is quite a few blocks away from the Fourth Street & I-280 crossing.

Near Exit 116 in Homdel, NJ along the Garden State Parkway you have a single on ramp from a Park and Ride Lot that is a short distance away from the actual 116 interchange.  You have to get off the Parkway at 116 and travel on local roads within Telagraph Hill Park to reach the lot and to go south on the Parkway you have to return the same way as it is a lone ramp.  I do not know if this counts or not being one can say its part of Exit 116 as that particular interchange does not connect to other roads besides the GSP and Telegraph Hill Park is only accessible to and from the GSP as an extended Rest Area you could say.  So logically the counterparts to the lone ramp are the Exit 116 ramps being that all vehicles to access the Park and Ride had to get there from Exit 116 as there is no other way to the facility other than a roadway closed to the general public from a local road in Homdel that is used for service vehicles to the PNC Bank Arts Center and GSP employees.

[theline]

This looks like a silly example by the author of the article. If you zoom out a bit on the GoogMap, you'll see that the ramp in question makes up for a missing movement at the Lehigh Street interchange. The ramp could not be easily built at Lehigh due to nearby structures. Duh!

Except that movement isn't missing at Lehigh: http://goo.gl/maps/5JgFL

Right you are, empirestate. I didn't zoom in close enough to see the left turn option there. Boy is my face red!

[NE2]

By the way, here's the original Emmaus interchange: http://www.historicaerials.com/aerials.php?scale=4&lat=40.564&lon=-75.479&year=1972

[jp the roadgeek]

The Hooker St. entrance in Plainville, CT to CT 72 E.  For years, it was the de-facto eastbound entrance for I-84 East for Exit 34, and involved backtracking 1 1/2 mi down CT 372 to get back onto I-84, a move that was created with the completion of the CT 72 expressway west of I-84 (there used to be an entrance under the bridges on Woodford Ave for which you can still see the grassed over ghost ramp), and finally corrected about 10 years ago.

[PurdueBill]

I thought of the one east of Huber Heights on I-70 but was beaten to it badly....I wonder if ODOT had ever assigned an "exit number" to it as its own interchange.  It was kinda neat to see there with shields and stuff at the entrance, but I guess I can see why it went away since it was close to the next interchange. Historic Aerials shows that the ramp was there in 2004, but disconnected with the cul-de-sac being built in 2006.  It doesn't seem that long ago!  Time flies.

A similar transition from two-way to one-way at the entrance to the highway with that being the only movement is just short of the Connecticut line on I-84 WB, also discussed around here in the recent past in some other thread.  Of course, that road is an old alignment, not a cut-off crossroad, so maybe similar examples are more common.

[NE2]

I thought of the one east of Huber Heights on I-70 but was beaten to it badly....I wonder if ODOT had ever assigned an "exit number" to it as its own interchange.

You should be able to find out: http://www.dot.state.oh.us/Divisions/planning/techserv/prod_services/Pages/TransportMap.aspx

[empirestate]

A similar transition from two-way to one-way at the entrance to the highway with that being the only movement is just short of the Connecticut line on I-84 WB, also discussed around here in the recent past in some other thread.  Of course, that road is an old alignment, not a cut-off crossroad, so maybe similar examples are more common.

Sure, you get that in Selinsgrove, PA: http://goo.gl/maps/lrx7G

[vdeane]

Also NY 17 merging onto I-287.

[PHLBOS]

Also NY 17 merging onto I-287.

While your example is still valid and not to nitpick; but according to Bing maps, the ramp that you speak of (merging onto I-287 south just at the I-87/Thruway interchange) is marked as Old Route 17.

http://www.bing.com/maps/#JnE9LmhpbGxidXJuJTI1MmMlMmJueSU3ZXNzdC4wJTdlcGcuMSZiYj00MS4xMzYxMTE3ODg1NDIyJTdlLTc0LjE0NTEwNTgzODc3NTYlN2U0MS4xMTU5NzIzMTMwMzIzJTdlLTc0LjE4MDk0MDE1MTIxNDY=

Currently, NY 17 briefly piggybacks w/I-87 (between Exits 15A & 15) for a short distance and has even a shorter piggyback w/I-287 from there to Exit 66 as (NJ 17).

[vdeane]

And... up until the most recent traffic data report, it was considered to follow the local road (state routes in NY don't necessarily follow the signage).  They must have recently decided to re-route it to match the signage.

[empirestate]

Also NY 17 merging onto I-287.

While your example is still valid and not to nitpick; but according to Bing maps, the ramp that you speak of (merging onto I-287 south just at the I-87/Thruway interchange) is marked as Old Route 17.

http://www.bing.com/maps/#JnE9LmhpbGxidXJuJTI1MmMlMmJueSU3ZXNzdC4wJTdlcGcuMSZiYj00MS4xMzYxMTE3ODg1NDIyJTdlLTc0LjE0NTEwNTgzODc3NTYlN2U0MS4xMTU5NzIzMTMwMzIzJTdlLTc0LjE4MDk0MDE1MTIxNDY=

Currently, NY 17 briefly piggybacks w/I-87 (between Exits 15A & 15) for a short distance and has even a shorter piggyback w/I-287 from there to Exit 66 as (NJ 17).

You're not at all wrong about that, but this spot is a well-known anomaly of routings in NYS. Without getting too deep into it, the old road is kind of also NY 17, while signage has it following the Thruway.

And... up until the most recent traffic data report, it was considered to follow the local road (state routes in NY don't necessarily follow the signage).  They must have recently decided to re-route it to match the signage.

I've never been sure about that; it does appear that old 17 saw some reconstruction, perhaps by the town or village, but I don't know for sure if it was ever transferred out of state maintenance. If not, then since it isn't a reference route, it must still be NY 17 at some level.

[vdeane]

That or the log is being ambiguous.  I didn't actually measure out the distances to see what they meant.  It's entirely possible that it's split, though I prefer to think of northbound NY 17 as not continuous.

[briantroutman]

One odd example is north of Williamsport on US 15 at PA 973.
http://bit.ly/10Ncj1N

This ramp serves as sort of an indirect link to the northern end of Business 15 via 973 (Lycoming Creek Road), but there are no real businesses to speak of that far north. There's another exit a few miles south (Hepburnville) to serve the BUS 15 traffic, and I've never seen a single car take lone 973 ramp, except my own.

What I find most intriguing about that interchange is that the two southbound bridges following the exit are very obviously built to accommodate a third lane–even though the northbound bridges are not. Further, the mountain cut and grading immediately beyond the bridges aren't wide enough to sustain the third lane, so it doesn't appear PennDOT was planning ahead for a truck lane on the grade. It looks like just enough room was left for an acceleration lane following a loop ramp from 973 to 15 southbound. And yet the single ramp that is there doesn't allow enough room for that loop ramp to be added.

While we're at it, there's another single-movement ramp about three miles to the north that connects old 15 to the current freeway NB.

[Michael]

This could marginally count as "one movement only":
NY 695 outside of Syracuse with the Gerelock Rd. exit and Horan Rd. entrance ramps seemingly independent of each other.

Gah, you beat me!

Here's one on US 15 for PA 973 about 6 miles north of Williamsport.

Also, all interchanges on Alanland's limited-unlimited-access freeways have only one movement.

EDIT: I just noticed that the PA 973 example was posted in briantroutman's reply directly above mine!  That's what I get for not looking at every reply.  Oh, well!

[NE2]

I've never been sure about that; it does appear that old 17 saw some reconstruction, perhaps by the town or village, but I don't know for sure if it was ever transferred out of state maintenance. If not, then since it isn't a reference route, it must still be NY 17 at some level.

It's still state maintained as of 2007: http://ftp.dot.ny.gov/tdv/YR2007/R08/85_Rockland/85_0168.pdf

[thenetwork]

This is a very odd one:

http://maps.google.com/maps?q=google+maps+akron+oh&hl=en&ll=41.05913,-81.504414&spn=0.00953,0.017424&hnear=Akron,+Summit,+Ohio&gl=us&t=h&z=16

This is for the collector ramp from SB I-77/WB & EB I-76 traffic "exiting" onto I-77 South, at the Central Interchange, to Cole Avenue/Lover's Lane.

Easier shown than explained.

[empirestate]

How about this one: http://goo.gl/maps/l4Hz5

That entrance used to be made by the service road merging into the loop ramp a short distance to the east, but this dedicated slip ramp was added when the highway was reconstructed. Functionally, you could argue that this movement is related to the Brown/Broad interchange (Exit 12), but there's another eastbound on-ramp there as well.

As an aside, just across the river you have the oddity of two ramps for the same movement; in fact, you have two cases of this: From South Ave. there are two ramps to I-490 east (functionally related to the single Exit 16 exit ramp), and two ramps to the same from the clockwise Inner Loop. (Again, one of the latter pair was recently reconfigured such that it's accessible from Byron Street, but used to be a loop only reachable via the Inner Loop off-ramp.) This happened because the pair of ramps joining I-490 from the right were originally meant for I-390, the cancelled Genesee Expressway through Rochester's south side.

[Alps]

http://articles.mcall.com/2012-05-20/news/mc-78-interchange-designs-20120520_1_interchange-entrance-ramp-gps-unit

On I-78 at Emaus Avenue in Allentown, motorists are treated to an off-ramp from the highway to southbound on Emaus – and that's the only movement available. You can't get off the highway northbound, nor onto 78 from either way on Emaus Avenue. Why bother with (and spend the money on) a one-ramp "interchange"? I'm unaware of any major traffic generator – a business, sprawling school complex, warehouse park or whatever – south of 78 that would justify the lone off-ramp.

http://maps.google.com/maps?hl=en&ll=40.564062,-75.476734&spn=0.005256,0.008256&t=k&z=18

PA I-78, WB exit 58: http://goo.gl/maps/0vhDs

[Kacie Jane]

Two exits east of NY 17, you have another one near the Thruway.  The ramp from the Garden State Parkway to Old Nyack Turnpike. http://goo.gl/maps/YQ2tB

[NE2]

Two exits east of NY 17, you have another one near the Thruway.  The ramp from the Garden State Parkway to Old Nyack Turnpike. http://goo.gl/maps/YQ2tB

I'd call that part of the Thruway/NY 59 interchange. Or at least paired with the onramp from Old Nyack to the eastbound Thruway.

[Kacie Jane]

You know, somehow I had missed the on-ramp to the Thruway.  But I still want to cling to some hope that this still counts, since the Thruway has it's own off ramp at exit 14.

[PHLBOS]

I've never been sure about that; it does appear that old 17 saw some reconstruction, perhaps by the town or village, but I don't know for sure if it was ever transferred out of state maintenance. If not, then since it isn't a reference route, it must still be NY 17 at some level.

It's still state maintained as of 2007: http://ftp.dot.ny.gov/tdv/YR2007/R08/85_Rockland/85_0168.pdf

While that indeed may still be true, just because a road is still being state-maintained doesn't necessarily it has to be automatically signed w/a route number and marked as such.  While the road carries 2-way traffic (at least until the alignment approaches the I-87/287 interchange), the only through-traffic it presently could only carry would be NY 17 southbounders (or alternate NY 17 southbounders).

As you obviously know, the I-87/287 interchange literally cuts off any direct NY 17 northbound movements from I-287 onto the old road south of Exit 15A.

While the state may still refer to that short stretch as NY 17 for maintenance record/tracking purposes; in the eyes of the motoring public (as well as signs, maps and GPS systems), that piece of road is no longer considered part of the through Route 17.

[empirestate]

I've never been sure about that; it does appear that old 17 saw some reconstruction, perhaps by the town or village, but I don't know for sure if it was ever transferred out of state maintenance. If not, then since it isn't a reference route, it must still be NY 17 at some level.

It's still state maintained as of 2007: http://ftp.dot.ny.gov/tdv/YR2007/R08/85_Rockland/85_0168.pdf

While that indeed may still be true, just because a road is still being state-maintained doesn't necessarily it has to be automatically signed w/a route number and marked as such.

Exactly; that's precisely the point. It isn't signed or marked as NY 17 (barring an errant old shield somewhere maybe), but it isn't numbered as anything else secretly either. Normally, if a route has been shifted off, NYSDOT will renumber the old alignment as a reference route (900-series number), though you might likely find the former number still on reference markers. In case, we have what I believe is New York's only secret touring route, or at least segment of one, which is why it's an interesting anomaly.

[vdeane]

There's also the curious case of NY 12E.  Heading south, signage indicates it goes on Paddy Hill Rd to end at NY 12F.  Officially, according to the route log, it continues to end at NY 12 near Watertown.  Paddy Hill Rd is a reference route.  The official routing of NY 12E is Jefferson CR 191.

I have not been to Buffalo to see if signage now reflects that NY 324 is multiplexed with I-190 between exits 15 and 17 in addition to the Grand Island Bridges or if it still follows the old alignment on Grand Island Blvd.  No signage for NY 324 exists on I-190 itself to show the multiplexes.

[vtk]

I thought of a couple more in Columbus.

I-270 northbound near Gahanna, there's an exit to Johnstown Rd (old US 62) which branches off the ramp to I-670 and US 62.  I suspect it was originally meant to be an alternate means to reach Stelzer Rd, back when I-670 (then just US 62 I think) had a diamond interchange at Stelzer and traffic from I-270 NB would have had to cut across multiple lanes to reach Stelzer.  But now that the main airport interchange has moved (and there's braiding for traffic coming from I-270 NB), plus more emphasis on using Hamilton Rd and Sawyer Rd when coming from the east, this little ramp to Johnstown Rd doesn't seem necessary.

The other example I thought of doesn't actually fit the thread when I think about it, but I'll leave the ramble here anyway...

Until last year, there was seemingly an odd ramp for I-71 SB to Leonard Ave / Jack Gibbs Blvd.  I suppose it was probably a mate for Cleveland Ave to I-71 NB via I-670 EB.  (Before the Northeast Freeway aka "new I-670" was built in the 90's, this was more obvious.)  But in the new design for this interchange, that exit ramp to Leonard Ave is gone; the best functional replacement will be the ramp to Spring St / Lester Dr.  But it will still be possible to go from Cleveland Ave to I-71 NB, though I'm not sure this will be an option advertized with BGS.  (The one-lane ramp from I-670 EB to I-71 NB and the one-lane ramp from Cleveland Ave to I-670 EB will share a two-lane bridge over I-71.  I don't know if ODOT intends to discourage lane changes on that bridge.)  For some reason, there will also be a ramp from Cleveland Ave to I-71 SB.  Oh, wait, I guess that's a mate for the ramp from I-71 NB to Leonard Ave – which didn't have a mate before.

Let's see if I can summarize the interaction between I-71 and Cleveland / Jack Gibbs / Leonard... 60's—90's: only missing a southbound entrance.  90's—10's: still missing southbound entrance, northbound entrance has to weave across I-670 EB.  10's—?: southbound entrance and northbound exit, or complete, depending on your interpretation.