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Interchanges within another interchange

Started by webny99, July 26, 2018, 01:05:06 PM

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webny99

What other interchanges exist entirely within another interchange?

It may have to be decided on a case by case basis as to whether it qualifies. Here's one example - the interchange between NY 590 and Ridge Road is entirely inside NY 104, which also has a partial interchange with NY 590. Any other examples of this?


TheStranger

the Story Road junction with US 101/Bayshore Freeway in San Jose is a lot like this, where it is underneath ramps for the 101/280/680 stack:
https://www.google.com/maps/place/Story+Rd+%26+Knox+Ave,+San+Jose,+CA+95122/@37.3382182,-121.8476803,17z/data=!3m1!4b1!4m5!3m4!1s0x808fcd2e062d404d:0x6d0944f9df10ec43!8m2!3d37.338214!4d-121.8454916

Much further north, the northbound offramp from the Bayshore Freeway to Bayshore Boulevard in San Francisco (the Silver Avenue exit) is under the long ramp from 101 north to 280 north/101 south to 280 south. (There also used to be a northbound onramp from Bayshore Boulevard that closed in the last decade)
https://www.google.com/maps/place/Silver+Ave+%26+Bayshore+Blvd,+San+Francisco,+CA+94124/@37.7329594,-122.4069077,17z/data=!3m1!4b1!4m5!3m4!1s0x808f7efc31681749:0xbe9829f76d6ba143!8m2!3d37.7329552!4d-122.404719
Chris Sampang

BrianP

I suppose these could count.  There are interchanges for the I-495 HOT lanes that are within the regular I-495 interchanges. The I-495 HOT lanes are like a parallel separate highway. Since you can't go between the two highways between the ends of the HOT lanes without exiting. 

Braddock Rd
https://www.google.com/maps/@38.813018,-77.213146,15.83z

Gallows Rd.
https://www.google.com/maps/@38.85398,-77.2199259,17.39z

I-66
https://www.google.com/maps/@38.8856276,-77.2202755,16.11z

VA 7
https://www.google.com/maps/@38.9112318,-77.2146098,16.11z

And VA 267
https://www.google.com/maps/@38.9316353,-77.2099593,16.65z

TheHighwayMan3561

self-certified as the dumbest person on this board for 5 years running

roadman65

When the Osceola Parkway and Victory Way interchange is completed inside WDW in Florida it will have an SPUI underneath a trumpet interchange.

In New York, the massive Bruckner Interchange is technically one within another as originally the Hutchinson River Parkway had an elongated cloverleaf with Bruckner Boulevard where the modern elevated Cross Bronx and Bruckner Expressway were built above grade over the top of the original cloverleaf.  Though some ramps were removed the basic configuration is still the same and, of course, the stone arch bridges carrying Bruckner Boulevard over the Hutch are still there as they were before all the bridges above them are today.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

jp the roadgeek

The I-476/US 1 interchange in Media, PA.  You have diamond interchanges from both roadways leading into an elevated volleyball interchange. 

The I-84/I-384/I-291 complex in Manchester, CT.  Coming from I-384 WB toward I-84 EB/I-291 WB, you have a split of the ramp for I-84 and I-291.  After the split, on the I-84 EB connection, there is a ramp to Buckland St that joins the I-84 Exit 62 ramp.  On the westbound I-84 C/D roads, you have ramps to Pleasant Valley Rd., and a ramp serving I-384 EB that is not advertised on mainline I-84 (much like the alternate connection to I-91 south from 5/15 SB in Hartford using the Brainard Rd exit).  After the 84/384 split, the 84 c/d road has Exit 60, while the I-384 ramp has an exit to Spencer St that joins I-384 EB Exit 1, but is unnumbered on the ramp. 

And if we're going to count the separate HOT lane exits in VA, then we need to count the HOV lane partial interchanges from the I-84 and I-91 HOV lanes east and north, respectively, of Hartford. 
Interstates I've clinched: 97, 290 (MA), 291 (CT), 291 (MA), 293, 295 (DE-NJ-PA), 295 (RI-MA), 384, 391, 395 (CT-MA), 395 (MD), 495 (DE), 610 (LA), 684, 691, 695 (MD), 695 (NY), 795 (MD)

Brandon

"If you think this has a happy ending, you haven't been paying attention." - Ramsay Bolton

"Symbolic of his struggle against reality." - Reg

roadman65

Metarie, LA has Causeway Blvd. and US 61 have two diamond interchanges converge on an elevated traffic circle.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

plain

In Virginia, I-195's interchange with I-64 is inside I-64's interchange with I-95.
Newark born, Richmond bred

Tom958

Primo example: Rancho Road-US 101 interchange entirely within the CA 23-US 101 interchange. I think an aerial of this was in at least one edition of the Green Book.

webny99

In the OP example, the entire interchange, while between NY 590 and Ridge Rd, is in the median of NY 104. So, when I say "inside", I'm essentially looking for interchanges that occur in a freeway median.

Quote from: Brandon on July 26, 2018, 06:52:05 PM
Lake-Cook Road and I-294 at I-94: https://goo.gl/maps/589evxyTRa42

Good example; very definitely one interchange inside of another (though, unlike mine, it's the ramps on the outside instead of the freeway).

Bickendan

Lone Hill Ave gets in with the Foothill (I-210, CA 210) and Orange (CA 57) Freeways interchange: https://goo.gl/maps/XULzkcTesaG2
Here in Portland, Greeley Ave does business with both Minnesota Ave (I-5) and Interstate Ave (who knows if it's still OR 99W or not), all within the Fremont Stack (I-405 and US 30)>: https://goo.gl/maps/ze4Nb1WfL9T2

plain

Quote from: webny99 on July 26, 2018, 09:13:48 PM
In the OP example, the entire interchange, while between NY 590 and Ridge Rd, is in the median of NY 104. So, when I say "inside", I'm essentially looking for interchanges that occur in a freeway median.

Oh. Well...........shit  :-D
Newark born, Richmond bred

jp the roadgeek

Then if we're talking about interchanges that occur within a freeway median, we can count the US 422 Exit to Lancaster Avenue (BUS US 222) in Reading,  PA. 
Interstates I've clinched: 97, 290 (MA), 291 (CT), 291 (MA), 293, 295 (DE-NJ-PA), 295 (RI-MA), 384, 391, 395 (CT-MA), 395 (MD), 495 (DE), 610 (LA), 684, 691, 695 (MD), 695 (NY), 795 (MD)

Henry

When the southern extensions of NC 540 get built, they will meet I-40 at a new interchange that will also include the current US 70 (future I-42) interchange.
Go Cubs Go! Go Cubs Go! Hey Chicago, what do you say? The Cubs are gonna win today!

thenetwork

The I-480(-N) connector in Cleveland connecting I-480 with US-422 & I-271 north contains an exit for Miles Road within. 

US 89

In Salt Lake City, the 400 South interchange on I-15 is entirely within the median of I-80. It's a completely separate interchange from the I-15/I-80/500 S/600 S interchange, despite being located in the middle of it.

BrianP

Quote from: jp the roadgeek on July 26, 2018, 06:46:20 PM
The I-476/US 1 interchange in Media, PA.  You have diamond interchanges from both roadways leading into an elevated volleyball interchange.
But that's still just one interchange.

webny99

Quote from: BrianP on July 27, 2018, 11:08:19 AM
Quote from: jp the roadgeek on July 26, 2018, 06:46:20 PM
The I-476/US 1 interchange in Media, PA.  You have diamond interchanges from both roadways leading into an elevated volleyball interchange.
But that's still just one interchange.

That's kind of what I was thinking. The freeways definitely cross in the middle of a giant square of one-way ramps, but it doesn't really count as being 'inside' another interchange.

That was the first volleyball interchange I ever laid eyes on; so don't get me wrong, I think it's a cool interchange, just not exactly what's being looked for.

paulthemapguy

Quote from: Brandon on July 26, 2018, 06:52:05 PM
Ogden Avenue and I-88 at I-355: https://goo.gl/maps/4w3yznarxHn

Can't believe I didn't think of this.  This was the interchange that got me interested in highways in the first place, as a 3 or 4 year old.  I lived my first 5 years less than a mile from that interchange with all of its flyover ramps.
Avatar is the last interesting highway I clinched.
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National collection status: 361/425. Only 64 route markers remain

TheStranger

Another Bay Area example I pass through quite often, the interchange for I-380 and I-280 is located within the ramps off 280 for Sneath Lane/San Bruno Avenue:
https://www.google.com/maps/search/Sneath+Lane+/@37.6293361,-122.4337891,1050m/data=!3m1!1e3

The long ramps connecting 280 with those surface streets were originally designed to also have offramps to the never-built 380 west extension to Pacifica; until the early 2000s, the southbound signage for the Sneath/San Bruno exit included a greened out 380 shield.

In Albany, the ramps for the 580/80 split are surrounded by the ramps for I-80's exit with Buchanan Street:
https://www.google.com/maps/place/Albany,+CA/@37.8884569,-122.3084601,1008m/data=!3m1!1e3!4m5!3m4!1s0x808578d2d25b053d:0xd5b038d13f07112f!8m2!3d37.88687!4d-122.2977475
Chris Sampang

Roadrunner75

The first thing I thought of when I read the topic was this interchange in Camden, NJ at the base of the Walt Whitman Bridge:

https://www.google.com/maps/@39.9025547,-75.1134619,654m/data=!3m1!1e3

The Collings Ave. interchange with I-676 is within the 676/76 interchange, at least southbound (do I get partial credit?)


webny99

Quote from: Roadrunner75 on July 27, 2018, 05:11:15 PM
The first thing I thought of when I read the topic was this interchange in Camden, NJ at the base of the Walt Whitman Bridge:
https://www.google.com/maps/@39.9025547,-75.1134619,654m/data=!3m1!1e3
The Collings Ave. interchange with I-676 is within the 676/76 interchange, at least southbound (do I get partial credit?)

Sure, why not?  :D
It looks kind of complicated, but I think it counts.

Of course, I'm not discouraging any examples that don't meet my exact criteria, just want to be clear as to what I'm looking for.

roadman65

Quote from: webny99 on July 27, 2018, 10:22:55 AM
Quote from: US 89 on July 27, 2018, 10:10:01 AM
In Salt Lake City, the 400 South interchange on I-15 is entirely within the median of I-80. It’s a completely separate interchange from the I-15/I-80/500 S/600 S interchange, despite being located in the middle of it.

Another excellent example of what I'm looking for.  :nod:
Would the GW Parkway's interchange with the Arlington Bridge Count?  Its in the median of the Parkway as the NB lanes are in DC along the Bank of the Potomac while the SB lanes travel further inland in VA along the Boundary Channel, but access to and from the Parkway are in its median though with an inside dumbbell but still the GW Parkway there is a freeway.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

mgk920

In Wisconsin, the I-41/WI 32 high speed directional 'T' 'Shawano Interchange' in Howard, WI (suburban Green Bay) is piggybacked over the I-41/WI 29/Shawano Ave interchange.

The about to be rebuilt I-39/90/I-43 'Beloit Interchange' in Beloit, WI will have its new directional 'T' ramps piggybacked over the I-39/90/WI 81 (Milwaukee Rd) interchange in a manner much like in the above example.

Mike



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