Trumpets with twin parallel overpasses

[ilpt4u]

A third trumpet interchange with twin parallel overpasses in Indiana...

I-64/IN State Road 62 interchange at U.S. 150 in Floyds Knobs (Exit 119)

https://www.google.com/maps/@38.3037996,-85.8896404,16.54z

LOL, that is one I have traveled thru many times, and it didn't even click...And that one is just a bit older, too

[7/8]

The 416 at the 417 in Ottawa, ON
https://goo.gl/maps/EYeqqQhJPQF2

[ilpt4u]

Kentucky's trumpets do -- including I-71 at I-75, Bluegrass Parkway at I-65, Cumberland Parkway at I-65, Audubon and Green River Natcher parkways at US 60.

There are a pair of them in KY in Henderson, as adjacent interchanges!

I-69/Pennyrile Pkwy, first with the Audobon Pkwy, and then with KY-425

https://goo.gl/maps/RxpccufUMqr

And over in OH, in the Cincy area, I-275 and I-74, west of the Miami River:

https://goo.gl/maps/RzYmrF6qFFL2

[thenetwork]

The Bensalem Interchange (US 1) on the PA Turnpike has two parallel, separate overpasses carrying traffic to and from the eastbound lanes.

https://goo.gl/maps/fiTSpijocaQ2

I don't think I've ever seen a hotel inside a cloverleaf like that before.  Interesting...

[briantroutman]

I didn't think this was uncommon.

Without having hard numbers, I'd guess that the vast majority of trumpet overpasses are single as opposed to twin. Perhaps there's a regional difference at issue here, too. In the East, trumpets are most commonly used as toll road interchanges, and in that scenario, all ramps are being brought to a single point, the toll plaza...and not to the open end of a freeway where the carriageways might be spaced widely apart.

At least in Pennsylvania, most three-way freeway-freeway junctions designed and built after the early '60s were not trumpets but semi-directional or directional interchanges (Ys or Ts). In the few cases where a "modern"  freeway with a reasonably wide median was terminated at a trumpet, PennDOT commonly brought the two carriageways together in the last half mile and sent the inner two lanes across a shared overpass (such as: I-86 at I-90, I-176 at US 422, PA 33 at I-78 (not an overpass, but you can see the carriageway convergence).

Nonetheless, I found a couple of additional twin overpass examples in Pennsylvania:

US 222 at US 30: https://goo.gl/maps/7KpTo6rnPGG2
US 422 at I-376: https://goo.gl/maps/y7EYt8dZvg52

[ilpt4u]

I haven't found any Dual Overpass Trumpets on the IL Tollway system -- most/if not all are Single Overpass (both from Memory and from a quick Google Maps check), including the DeKalb Oasis Trumpet

Back to another instance, in KY:

I-64 and I-75, the Northern Lexington Junction

https://goo.gl/maps/g6yuYtxbEvo

An Anti-example, in Southern IN/Louisville area:

It appears InDOT took Multiple Overpasses for the Dual Carriageways of US-31 (Outside, almost like Freeway Local Lanes) and I-65 (Inside, almost like Freeway Express Lanes) over the 10th St Trumpet in Jeffersonville, and have since made it one really wide Overpass, carrying 2 lanes of US-31 South, 4 lanes of I-65 South, 4 Lanes of I-65 North, a Northbound slip ramp from US-31 to I-65, and 2 lanes of US-31 North.

I assume this reconfiguration was done as part of the Ohio River Bridges Project. The Google Maps Satellite view still shows the old configuration, but Street View shows the new

https://goo.gl/maps/7iywqYUE2dw

[peterj920]

Wis 441 at the Northern Terminus with I-41 in Appleton, WI.

[roadman65]

Polk Parkway at both ends of it with I-4.  However the Exit 27 interchange parallels Clarke Road so you have three overpasses giving you the illusion that Polk Parkway has a dual configuration.

[intelati49]

The Bensalem Interchange (US 1) on the PA Turnpike has two parallel, separate overpasses carrying traffic to and from the eastbound lanes.

https://goo.gl/maps/fiTSpijocaQ2

I don't think I've ever seen a hotel inside a cloverleaf like that before.  Interesting...

Focused on the trumpet and completely missed the mess of ramps there. Jeez

[MCRoads]

I44 and I240 in OKC has twin overpasses, as well as an interestingly placed basketweave interchange in it.

https://www.google.com/maps/@35.3980541,-97.5746958,16z/data=!3m1!1e3

[PHLBOS]

^ I'm a bit busy today to do research, but I'll take a guess: This was planned to be a full eight-ramp cloverleaf for an extension of US 3 inside the I-95 circumferential, but that extension was cancelled, right?

Did this interchange ever operate as two loops? I can see what appears to be the north-to-north loop, but I can't tell if that's a remnant of a once-functioning ramp or merely maintenance/police access on the unused grading.

Yes, that north-to-north ramp was in active use (as the entrance ramp to US 3 north from then-just-128 north) until roughly the mid-70s.  From that time henceforth; the current ramp, which was originally planned as a north 128-to-south 3 ramp, was modified to carry north-to-north traffic which gives us the current trumpet configuration.

Since we're speaking of twin overpasses at trumpet interchanges; I'm surprised that nobody has yet mentioned the I-95/93 interchange further south  Of course, like the US 3 Burlington interchange; this was originally planned (& built) as a cloverleaf interchange w/a single flyover ramp (that was demolished later on).

Here's another one that, to my knowledge, was a trumpet interchange from the get-go; I-495/195/MA 25 in Wareham

[ilpt4u]

In MS, near the Tunica Resorts area and just west of I-69, MS-304 ends at US 61, in a Dual Overpass Trumpet

https://goo.gl/maps/eTWyPVrG5AT2

[ilpt4u]

Quad Cities, IA: I-74 and I-80

https://goo.gl/maps/5MkrWEVAnnm

West of Peru/Lasalle, IL: I-80 and I-180

https://goo.gl/maps/8ub7hv6o8Yn

Bloomington/Normal, IL: I-39 and I-55...Immediately followed by another Trumpet for I-55 and I-74, but that one has a Single Overpass for I-55 over I-74

https://goo.gl/maps/xRgxgpdgkS92

[davewiecking]

A trumpet forms the basic College Park, MD interchange of I-495/I-95, using parallel overpasses. It's another "planned thru route that never was built" situation that had a flyover added, but the loop was kept for local access.

[JJBers]

https://goo.gl/maps/55YSJZooFFS2
I-395 and CT 2A

[briantroutman]

https://goo.gl/maps/55YSJZooFFS2
I-395 and CT 2A

That's a single overpass.

[JJBers]

https://goo.gl/maps/55YSJZooFFS2
I-395 and CT 2A

That's a single overpass.

And that's what I get for looking at it thinking it's two separate overpasses than two lanes.

[ilpt4u]

I-74 and I-155 near Morton and East Peoria, IL

https://goo.gl/maps/7hSrDqQ4MxJ2

Recently redone, and the Streetview of the new I-155 driving over the Trumpet does show two parallel overpasses going over I-74

I-88 (IL - IDOT portion) and Lincoln Ave/Exit signed US 30 West/Exit 36

https://goo.gl/maps/evBvvR9Q5r82

I-255/US 50 and IL 3 Northern JCT/Exit 10, STL Metro East, IL area

https://goo.gl/maps/gRNS3HoEWXA2

I'm starting to think IDOT likes Trumpets...

[Revive 755]

^ I was going to say it probably wasn't always this way and Illinois used to prefer the directional T design, but then I realized I didn't have a date of construction for the northern I-55/I-74 interchange and remember seeing earlier designs for the PSB complex and the southern I-255 interchange with IL 3 that were trumpets.

Also for Illinois:
 
* The northern I-255/IL 3 interchange (originally proposed as a half directional T).

* The I-72/I-172 interchange

[hbelkins]

I-64 and KY 67.

[ilpt4u]

3 in close proximity in SW VA

Both ends of the I-77 and I-81 concurrency in VA

Western: https://goo.gl/maps/ybLoVAguG8A2

Eastern: https://goo.gl/maps/M2x2N88dHc72

Along the I-77/I-81 concurrency, US 11 Exit, east side of Wytheville

https://goo.gl/maps/VxviL9HtA3U2

And in West VA

I-64/I-77/West VA Turnpike @ Exit 48 to US 19

https://goo.gl/maps/ew3kTtYp8oT2

I-64/I-77/West VA Turnpike @ Exit 42/WV-16 and WV-97, more the Trumpet portion under the Turnpike, and the Turnpike thru lanes have the Dual Overpasses. The Trumpet portion leading to WV-16/WV-97 is Single Overpass

https://goo.gl/maps/HUtUGnsJw4A2

I-64 and US 52 near the Ohio River, Exit 6. Thru I-64 has the Dual Overpasses

https://goo.gl/maps/3vcJNPdRSZB2

[davewiecking]

.... in SW VA

Both ends of the I-77 and I-81 concurrency in VA; Western: https://goo.gl/maps/ybLoVAguG8A2

Actually, that on has the I-81 mainline on the parallel bridges, and the trumpet is ground level, which isn't exactly what OP was seeking.

Is there such a thing as a "left hand trumpet" vs. a "right hand trumpet"? As in, from the mainline you get a gradual (outer) ramp to the other road first, and the traffic coming off the other road uses a loop ramp to hit the mainline. In the other case such as the one above, the mainline traffic uses the loop ramp to access the other road, and traffic coming off the other road uses the more gradual turn. Trumpet vs. Flugelhorn?

[ilpt4u]

Actually, that on has the I-81 mainline on the parallel bridges, and the trumpet is ground level, which isn't exactly what OP was seeking.

A few examples I have posted have that scenario, and it may not be what the OP intended, but the thread title is "Trumpets with twin parallel overpasses" -- it doesn't specify where the twin overpasses have to be, and the Thru/Mainline has to be a part of the Interchange, by definition, as do the Trumpet ramps

As far as your 2nd point, I may need a picture -- isn't that question merely a matter of Perspective?

If I understand your theory, then this Trumpet mentioned above:

Along the I-77/I-81 concurrency, US 11 Exit, east side of Wytheville

https://goo.gl/maps/VxviL9HtA3U2

would be a "left hand?" as Interstate Mainline exiting traffic has the gradual route to the overpass, and entering traffic from US 11 has the Loop Ramp from the overpass

Whereas this Trumpet mentioned above:

I-64 and US 52 near the Ohio River, Exit 6. Thru I-64 has the Dual Overpasses

https://goo.gl/maps/3vcJNPdRSZB2

would be a "right hand?" as Interstate Mainline exiting traffic has the Loop Ramp to the underpass (in this case), whereas entering traffic from US 52 has the gradual route from the underpass to the Interstate/Freeway

I would think, in theory anyway, that for any Freeway to non-Freeway movement, the Freeway exit should be the lower speed loop ramp, and the Freeway entrance should be the higher speed gradual ramp. On Freeway to Freeway movements, or movements involving a Toll Plaza or a Rest Area/Service Plaza, I don't think it makes too much difference

[davewiecking]

As far as your 2nd point, I may need a picture -- isn't that question merely a matter of Perspective?

For consistency, let's assume you're traveling on the mainline, and the auxiliary road is on your left. Both 77/81 interchanges you listed are "after bridges"-you go under (OK-or across) the bridge before getting to the exit ramp (in this case the "inner" loop) which takes you over (OK-or under) the mainline. Your US 11 example is a "before bridge"; you reach the more gradual "outer" ramp first, which takes you over (..) the bridge; traffic coming off US 11 uses the "inner" loop.

[ilpt4u]

So the distinction is whether Mainline traffic exits via the loop ramp, or enters via the loop ramp?

I thought both were considered Trumpets? I could be mistaken