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
Do other trumpets have the same arrangement? Were any built that way? (As opposed to this example, which originally had only one overpass carrying both directions, then a second was added later.)
I-95/MA 128 at US 3 is a trumpet with separate overpasses.
^ 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.
Off hand, NY 85 at I-90 is like this.
iPhone
^ Interesting geometry. Were plans for a longer freeway scuttled here, too?
I-84 at Exit 36 in CT has an interesting one where the eastbound exit is a left hand exit so the (somewhat) parallel overpasses extend over the eastbound lanes only.
https://goo.gl/maps/wrCgo92RJHN2
US 10 and US 45 (N). It was orginally built that way.
https://www.google.com/maps/@44.2380293,-88.7315675,3471m/data=!3m1!1e3
I-15 and I-70 in Cove Fort, UT.
https://www.google.com/maps/@38.5770659,-112.6029069,1117m/data=!3m1!1e3 (https://www.google.com/maps/@38.5770659,-112.6029069,1117m/data=!3m1!1e3)
In McLean, Virginia, the George Washington Memorial Parkway (National Park Service maintenance, "secret' VA-90005) ends at I-495 just south of the American Legion Bridge over the Potomac River with a trumpet (https://www.google.com/maps/place/38%C2%B057'49.5%22N+77%C2%B010'59.9%22W/@38.963747,-77.1876847,16z/data=!4m5!3m4!1s0x0:0x0!8m2!3d38.963747!4d-77.183302). Traffic from the Inner Loop I-495 and to the Outer Loop I-495 have always been on separate bridges, perhaps because at one time there were plans for this parkway to continue further upstream to the vicinity of the Great Falls of the Potomac.
I44 and James River Freeway in Springfield, MO
Rte 66
Rte 66, Springfield, MO 65802
https://goo.gl/maps/EegCDbNUVcC2
I-675 at I-75 north of Saginaw, MI:
https://goo.gl/maps/rpHGLGN22CT2
The I-75 interchange with M-24/Business I-75 in Auburn Hills, MI is a double trumpet with twin overpasses over both highways:
https://goo.gl/maps/2DCbUa2bMbA2
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.
The trumpet interchange between I-80 and CA 65 in Rocklin, CA features twin bridges on the 65 overpass. This is an interesting interchange in that the main movement within the "trumpet" segment south of I-80 utilizes the loop rather than the direct connection due to the topology of the region (there's a stream bed immediately south of the interchange that was deemed too environmentally fragile to be disturbed (which it would have if the trumpet had been configured otherwise). I lived in the area when the interchange opened in mid-1987 and wondered about its construction details (my cousin, who was interning with Caltrans then while in college, supplied me with the reasons it was built that way). Commuter traffic heading for north Roseville and Lincoln (and there's plenty these days) must take the 25mph 2-lane loop; while the direct trumpet component sees relatively little use. For budgetary reasons, it'll probably stay that way for quite some time (a long flyover is a long-term possibility, but not in the near term).
There's 3 in Virginia I know of:
VA 895 ending at I-295. Looks like this one was designed in a way where VA 895 could be extended eastward sometime in the future (I seriously doubt that will ever happen)
https://goo.gl/maps/RPsPKGBWg6A2
VA 288 ending at I-95
https://goo.gl/maps/jmcELx6zPTq
VA 33 beginning/leaving its duplex with I-64. This one also looks like there's room for the road to be extended but I've never heard of any talks about that and I'm not sure why this interchange is designed this way
https://goo.gl/maps/QGWjc6VxrQJ2
Bloomington, IN at the I-69/IN-37 interchange south of town
https://goo.gl/maps/fqhqpaWUAvE2
Since this interchange (and I-69 in Southern IN overall) didn't even exist not that long ago, this one was built this way from the start
I didn't think this was uncommon. I see it when the terminating roadway has a wide median, that for purposes of geometry, is maintained throughout the loop. Two examples off the top of my head in Washington (US-195 @ I-90 in Spokane, and SR-512 @ SR-167/161 in Puyallup):
FWIW, neither of these freeways had any extension plans. They just had wide medians.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F5ov5tsL.png&hash=bea4f83bc01d742aa6839ffad69aa92b022119e0)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FOrIgFNS.png&hash=031edb740f3a4ce4bb2b215261e14a1306f2e55f)
Quote from: jakeroot on May 28, 2017, 06:43:09 PM
I didn't think this was uncommon. I see it when the terminating roadway has a wide median, that for purposes of geometry, is maintained throughout the loop. Two examples off the top of my head in Washington (US-195 @ I-90 in Spokane, and SR-512 @ SR-167/161 in Puyallup):
FWIW, neither of these freeways had any extension plans. They just had wide medians.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F5ov5tsL.png&hash=bea4f83bc01d742aa6839ffad69aa92b022119e0)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FOrIgFNS.png&hash=031edb740f3a4ce4bb2b215261e14a1306f2e55f)
Great top picture of 90/195; note the Latah Creek RR bridge going right through the trumpet; that's the big BNSF junction in the area: the right side heads to the Puget Sound (comes out at Everett) via the Cascade Tunnel, while the left goes through Pasco on the way to the Columbia River and Portland. The Amtrak
Empire Builder Portland and Seattle sections split at the Spokane depot about a mile east of the bridge and use the respective branches to reach their destinations.
In thinking about this question, it dawned on me that none of Vermont's trumpet interchanges** have the ramps bridged over the freeway mainline. In each case, the freeway is bridged over the ramps.
** - Though similar to a "double-trumpet", I'm not counting the US 7/VT 279 interchange complex as a trumpet.
The southeastern US 340/WV 9 interchange on the Charles Town, WV bypass is this way: https://goo.gl/maps/EU5um35Hgtr
Another Southern IN Trumpet, done this way, is in Terre Haute with the US 41/IN-641 Interchange -- and built this way recently, as IN-641 isn't that old of a route
https://goo.gl/maps/sQffrxqng2w
I believe Minnesota only has one trumpet interchange (which does not qualify).
The trumpet interchange along the Maine Turnpike (I-95) at I-195 in Saco (https://goo.gl/maps/MnxMoLK6u9R2) has parallel overpasses. It's the only dual-overpass trumpet interchange on the turnpike, and one of two I'm aware of in Maine. The other is along I-295 at exit 28 (US 1 connector) in Brunswick (https://goo.gl/maps/giQ8tVACJx42).
Quote from: TheHighwayMan394I believe Minnesota only has one trumpet interchange (which does not qualify).
Before US 14 was relocated west of Owatonna, the southern I-35/US 14 junction (Exit 40) was a trumpet with dual overpasses.
There are four current trumpets in Minnesota (US 53/MN 169, southern US 52/MN 60, both MN 15/MN 60 junctions), but none of them meet the OP's requirement.
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
In Central IL between Bloomington-Normal and Lincoln:
Does a Trumpet for a Rest Area count? Also, thru I-55 has the dual overpasses, over the ground-level ramps to/from the Rest Area and I-55 North. Of course, one could argue its not a true Trumpet, since the I-55 South ramps to the Southbound Rest Area parking lot is offset and further south than the I-55 North ramps to the Northbound Rest Area parking lot. It is a single Rest Area for both directions of travel
https://goo.gl/maps/qonTurCrpTH2
Quote from: Great Lakes Roads on May 29, 2017, 10:36:23 PM
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
The 416 at the 417 in Ottawa, ON
https://goo.gl/maps/EYeqqQhJPQF2 (https://goo.gl/maps/EYeqqQhJPQF2)
Quote from: hbelkins on May 27, 2017, 06:58:19 PM
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
Quote from: briantroutman on May 27, 2017, 12:55:06 PM
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...
Quote from: jakeroot on May 28, 2017, 06:43:09 PM
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 (https://goo.gl/maps/HHR8DCGB5DR2), I-176 at US 422 (https://goo.gl/maps/9ZrDXX16nEB2), PA 33 at I-78 (https://goo.gl/maps/TFNkc7drFtG2) (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
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
Wis 441 at the Northern Terminus with I-41 in Appleton, WI.
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.
Quote from: thenetwork on May 29, 2017, 11:12:16 PM
Quote from: briantroutman on May 27, 2017, 12:55:06 PM
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
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
Quote from: briantroutman on May 27, 2017, 01:18:54 PM
^ 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 (https://www.google.com/maps/place/Canton,+MA/@42.2081178,-71.1418851,975m/data=!3m1!1e3!4m5!3m4!1s0x89e481bdecf5a775:0xa35829897f4e20c0!8m2!3d42.1584324!4d-71.1447732) 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 (https://www.google.com/maps/place/Millbury,+MA/@41.7831522,-70.7336462,1392m/data=!3m1!1e3!4m5!3m4!1s0x89e405694ee685c1:0xb1a9cda7e3a0fc72!8m2!3d42.1920719!4d-71.761522)
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
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
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.
https://goo.gl/maps/55YSJZooFFS2 (https://goo.gl/maps/55YSJZooFFS2)
I-395 and CT 2A
Quote from: JJBers on June 11, 2017, 11:36:38 AM
https://goo.gl/maps/55YSJZooFFS2 (https://goo.gl/maps/55YSJZooFFS2)
I-395 and CT 2A
That's a single overpass.
Quote from: briantroutman on June 11, 2017, 11:42:48 AM
Quote from: JJBers on June 11, 2017, 11:36:38 AM
https://goo.gl/maps/55YSJZooFFS2 (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.
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...
^ 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
I-64 and KY 67.
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
Quote from: ilpt4u on June 11, 2017, 04:35:43 PM
.... 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?
Quote from: davewiecking on June 11, 2017, 06:05:22 PM
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
Quote from: ilpt4u on June 11, 2017, 06:10:37 PM
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.
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
I-69/I-155 and US 412, near Dyersburg, TN
https://goo.gl/maps/mseEnXvZWkE2
Quote from: ilpt4u on June 11, 2017, 06:34:55 PM
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
Yes, that's the distinction I was making, and they are indeed both Trumpets. I'm just curious if anyone else knows if there's a specific name for what I'm now calling "a leading loop trumpet" and a "trailing loop trumpet". (I'm trying to come up with an appropriate adjective for one of them that starts with "s" so I can call it a "strumpet".)
Reviewing some of the earlier posts, I see that some have posted about T's and Y's and called them "Trumpets", but that's NOT correct.
As to the other point earlier (the mainline having the 2 parallel bridge spans), I remembered reply 17 above where it was stated that (almost) all trumpets in Vermont have the freeway mainline bridged over the ramps so he didn't list them. It seemed to me that the OP did intend to make this distinction, even though it didn't get into the exact words of the post.
I submit that it's probably a lot harder to find the situation where both directions of a mainline freeway are bridged over the ramps/aux road on a SINGLE span. However, I'm not going to take this thread and flip it into the opposite of what was originally asked...
Quote from: davewiecking on June 11, 2017, 08:47:29 PM
I submit that it's probably a lot harder to find the situation where both directions of a mainline freeway are bridged over the ramps/aux road on a SINGLE span. However, I'm not going to take this thread and flip it into the opposite of what was originally asked...
I already posted one, as 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
Theres quite a few lanes on that Overpass going over the Trumpet ramps! But it wasn't always one Overpass; it was recently rebuilt this way, probably as part of the OH River Bridges Projects in the Louisville area
I find the I-89/I-189 Trumpet in Vermont to be pretty interesting, but it does not follow the guidelines of Parallel Overpasses
The loop ramp of the trumpet is I-89 North to I-189 West, and it overpasses I-89
The matching trumpet non-loop ramp from I-189 East to I-89 North, is an underpass of I-89.
So the parallel "passes" of the thru I-89, one is an Overpass and the other an Underpass
Also, this is a Trumpet with a Thru route, as I-189 transitions to surface street Kennedy Dr, but there are no Kennedy Dr to I-89 movements
https://goo.gl/maps/Qqh7AtRLgh72
But I do see what the response on Reply 17 now, and note that a quick look at Vermont, it is pretty typical to have Trumpets with the Mainline on Dual Overpasses over the Trumpet ramps
At the double trumpet interchange between Florida's Turnpike and I-4 in Orlando, the ramps to and from the Turnpike southbound had two bridges installed a few years ago, each with two lanes. And I believe the ramps to and from I-4 westbound will be twinned as part of the overhaul of I-4.
One from TN, I-65 and TN-396, south of Nashville
https://goo.gl/maps/m1iDAn8Jnt62
One from NJ, the NJ Turnpike/I-95 and I-195, Double Trumpet, but the Trumpet ramps over the Turnpike are on twin, parallel overpasses. The Trumpet over I-195 has a single overpass
https://goo.gl/maps/MnFPZxqx3572
Vancouver, BC. Knight St and BC-91.
An interesting Trumpet, in a couple of ways. First, Knight Street is a thru road on both sides of the Interchange, but there are only Trumpet movements to/from all directions of 91 to/from Knight Street north of 91.
Also, Mainline BC-91 has the overpasses, and one over the Trumpet loop ramp and mainline Knight Street, and a separate 91 overpass for the longer ramp around the Loop, on the South side of 91. And since Knight Street is a thru street, the 91 East to Knight North ramp also overpasses mainline Knight Street
No movements from BC-91 to/from Knight Street south of 91 at all. Per Google, Knight Street is a Freeway north of 91, even tho south of 91 its only interchange is signalized at its southern terminus, not very far from this Trumpet
https://goo.gl/maps/YPUWmmVVQj22
Only trumpet in Oregon I can think of is OR 217 at US 26, and it doesnt qualify, but it's an interesting one because of the through ramps on OR 217 to SW Barnes Rd and the opposing loop ramp from eb 26 to access the surface streets.
Quote from: briantroutman on May 27, 2017, 01:29:51 PM
^ Interesting geometry. Were plans for a longer freeway scuttled here, too?
In reference to NY 85, yes. That was supposed to end at I-687 with an intermediate interchange at NY 5. With 687 being canceled, 85 was never extended. There have been proposals to extend it to NY 5, but those have been stopped due to environmental reasons.
In MO, NW of Poplar Bluff
Northern US 67 and US 60 Interchange
https://goo.gl/maps/7ju9cdkYs6J2
Quote from: cl94 on June 12, 2017, 08:39:01 PM
Quote from: briantroutman on May 27, 2017, 01:29:51 PM
^ Interesting geometry. Were plans for a longer freeway scuttled here, too?
In reference to NY 85, yes. That was supposed to end at I-687 with an intermediate interchange at NY 5. With 687 being canceled, 85 was never extended. There have been proposals to extend it to NY 5, but those have been stopped due to environmental reasons.
An old RPPM in Region 1 wanted to see the extension happen.
The environmental reasons don't have anything to do with air quality, but the fact that there is a brownfield between NY 85 and 5.
Funny thing is he didn't want to see it happen until the mess at Fuller Road and Washington Ave was fixed and that's actually happened now.
Of course, I haven't heard anyone mention it in a few years now.
Quote from: ilpt4u on June 12, 2017, 07:12:11 PM
Vancouver, BC. Knight St and BC-91.
An interesting Trumpet, in a couple of ways. First, Knight Street is a thru road on both sides of the Interchange, but there are only Trumpet movements to/from all directions of 91 to/from Knight Street north of 91.
Also, Mainline BC-91 has the overpasses, and one over the Trumpet loop ramp and mainline Knight Street, and a separate 91 overpass for the longer ramp around the Loop, on the South side of 91. And since Knight Street is a thru street, the 91 East to Knight North ramp also overpasses mainline Knight Street.
I believe those movements were discarded because of low expected use, so alternative ramps (in the form of half-diamonds) were provided elsewhere (to/from Number 6 Road, Shell Road and Westminster Highway).
That said, I'm not sure this junction fits the OP's criteria, since the trumpet ramps are below the 91. Even if Knight Street was out of the picture, the ramps would be at ground level.
Quote from: jakeroot on June 12, 2017, 11:44:10 PM
That said, I'm not sure this junction fits the OP's criteria, since the trumpet ramps are below the 91. Even if Knight Street was out of the picture, the ramps would be at ground level.
Yup, its not a perfect fit for the OP's description, as it is parallel Underpasses, not parallel Overpasses for the Ramps (and thru Knight St). From another perspective, it does fit, as the "Loop" and "Elongated" trumpet ramps do NOT use the same Over/Underpass
I still find it to be pretty neat looking, especially for a Trumpet, not the least of which is not that many Trumpets with 2 Thru routes!
Vancouver is on the travel list, one day....gotta get that Passport first
Quote from: ilpt4u on June 13, 2017, 12:04:34 AM
Quote from: jakeroot on June 12, 2017, 11:44:10 PM
That said, I'm not sure this junction fits the OP's criteria, since the trumpet ramps are below the 91. Even if Knight Street was out of the picture, the ramps would be at ground level.
Yup, its not a perfect fit for the OP's description, as it is parallel Underpasses, not parallel Overpasses for the Ramps (and thru Knight St). From another perspective, it does fit, as the "Loop" and "Elongated" trumpet ramps do NOT use the same Over/Underpass
I still find it to be pretty neat looking, especially for a Trumpet, not the least of which is not that many Trumpets with 2 Thru routes!
I could take it or leave it. I'll leave it up the OP. Seems like an edge case.
I do agree on the looks. BC tends to build rather cool looking interchanges that not only function well, but use very little land and look really cool too. Check out the Hwy 99/Hwy 17 interchange near Delta. Although it's missing a movement (a theme in Vancouver, if you haven't noticed), it's a very cool looking interchange. Lots of swooping ramps, with a couple loops to throw things off.
Quote from: ilpt4u on June 13, 2017, 12:04:34 AM
Vancouver is on the travel list, one day....gotta get that Passport first
The traffic can really get to you after a while, but it's a very cool city, from many perspectives: road geek, transit geek, urban-form geek, movie buff, etc. There's something here/there for everyone!
I-195/MA 240 interchange (https://www.google.com/maps/@41.6579225,-70.8855916,1445m/data=!3m1!1e3) in Fairhaven, MA
Quote from: jakeroot on June 13, 2017, 01:04:13 AM
Quote from: ilpt4u on June 13, 2017, 12:04:34 AM
Yup, its not a perfect fit for the OP's description, as it is parallel Underpasses, not parallel Overpasses
I could take it or leave it. I'll leave it up the OP. Seems like an edge case.
Right, it's not exactly what I was asking for, but I think a twin underpass is close enough to the spirit of what I wanted–and interesting in its own right. Perhaps more interesting still would be a trumpet where the ramps pass underneath the mainline in two separate and distinct underpasses that are truly parallel–whereas in the Vancouver example, the inner ramp is a straight line under BC 91 while the outer ramp is sort of an arc.
That said, a few earlier examples ilpt4u gave were trumpets where the ramps pass under the mainline and the through lanes were carried on twin overpasses–and that, to me, isn't so remarkable. Other than on very old freeways like the Pennsylvania Turnpike with very narrow rights-of-way (or urban freeways in tight corridors), it's common for carriageways to be carried on separate overpasses–through all kinds of interchanges, including trumpets.
Quote from: PHLBOS on June 13, 2017, 01:08:49 PM
I-195/MA 240 interchange (https://www.google.com/maps/@41.6579225,-70.8855916,1445m/data=!3m1!1e3) in Fairhaven, MA
Another aborted cloverleaf, I assume. But with the MA 140 freeway just a few miles to the west, I don't understand what need there would have been for another north-south freeway–which I assume would have connected with MA 140 on the north end of New Bedford. Then again, it would be similar to the Ma 79/MA 24 setup in Fall River, a little further west.
Quote from: briantroutman on June 13, 2017, 01:53:33 PM
Quote from: PHLBOS on June 13, 2017, 01:08:49 PM
I-195/MA 240 interchange (https://www.google.com/maps/@41.6579225,-70.8855916,1445m/data=!3m1!1e3) in Fairhaven, MA
Another aborted cloverleaf, I assume. But with the MA 140 freeway just a few miles to the west, I don't understand what need there would have been for another north-south freeway–which I assume would have connected with MA 140 on the north end of New Bedford. Then again, it would be similar to the Ma 79/MA 24 setup in Fall River, a little further west.
Based in the Wiki write-up, 240 was indeed planned to extend northward to Acushnet but the proposal died off sometime in the 1970s. While it's logical to assume that 240's would-be northern terminus was indeed w/MA 140; there's no real mention regarding where exactly it would've connected. Maybe at 140's Exit 6 (MA 18/Ashley Blvd.) (https://www.google.com/maps/place/Acushnet,+MA/@41.7067514,-70.9275595,13.5z/data=!4m5!3m4!1s0x89e4e60207c38a03:0x7c0b3f5506317134!8m2!3d41.7223696!4d-70.8952337); but who knows.
Quote from: ilpt4u on June 11, 2017, 09:33:13 PM
I find the I-89/I-189 Trumpet in Vermont to be pretty interesting, but it does not follow the guidelines of Parallel Overpasses
The loop ramp of the trumpet is I-89 North to I-189 West, and it overpasses I-89
The matching trumpet non-loop ramp from I-189 East to I-89 North, is an underpass of I-89.
So the parallel "passes" of the thru I-89, one is an Overpass and the other an Underpass
Also, this is a Trumpet with a Thru route, as I-189 transitions to surface street Kennedy Dr, but there are no Kennedy Dr to I-89 movements
https://goo.gl/maps/Qqh7AtRLgh72
But I do see what the response on Reply 17 now, and note that a quick look at Vermont, it is pretty typical to have Trumpets with the Mainline on Dual Overpasses over the Trumpet ramps
The I-89/I-189 trumpet, being on different levels, I guess is a "split trumpet". All the examples having the trumpet ramps beneath the mainline (such as the BC-91 example) would be "submerged trumpets". Both are "strumpets". Perhaps with spit valves (the extra thru road)??
Clearly, I woke up too early this morning...
I-76 (Western) and I-80, in Nebraska near the Colorado state line
https://goo.gl/maps/fdnuu3UBn1N2
I-76 (Eastern) and I-80 also meet at a Trumpet -- actually, a Double Trumpet, due to the OH Turnpike, but that Double Trumpet complex is all Single Overpasses, best I can tell
I-35 and US 59, outside Ottawa, KS
https://goo.gl/maps/1ZRByo4iakK2
US 400 and KS-96 near I-35/KS Turnpike, Wichita, KS
https://goo.gl/maps/dfAhr8y2Vbv
There is a lot going on here, with another (almost double) trumpet in the picture for I-35/Kansas Turnpike to access KS-96, with the I-35 ramps normal Trumpet, and the ramp complex at KS-96 is almost a trumpet, but not quite due to KS-96 extending south to US 400, to meet at the Dual Overpass Trumpet
I-135 and KS-96, Wichita
https://goo.gl/maps/cwFcZg13x8m
The other end of KS-96 in Wichita, there is another Dual Overpass Trumpet, in an interesting configuration, due to a nearby railroad line, as well as a squished Folded Diamond interchange for Hydraulic Ave/29th St within the Southern end of the Trumpet ramp of I-135 North to KS-96. Also due to the railroad, that I-135 North to KS-96 is a longer ramp so it can stay to the southeast of the railroad, never needing to cross it, despite all other movements of the Interchange being northwest of the railroad
The more I keep finding these, the less rare I think they are... (That is probably a "Captain Obvious" type statement, granted)
I-40 and Business Loop 40, west of El Reno, OK
https://goo.gl/maps/vZQF63wyoCP2
Quote from: ilpt4u on June 14, 2017, 11:55:41 PM
The more I keep finding these, the less rare I think they are... (That is probably a "Captain Obvious" type statement, granted)
I-40 and Business Loop 40, west of El Reno, OK
https://goo.gl/maps/vZQF63wyoCP2
The opposite happened to me. When I first saw this thread, I thought there were going to be hundreds of examples. They seem to be rarer than I originally thought they were.
That said, there is another one in UT that I initially forgot: I-15 and I-84 in Tremonton. That particular one is interesting in that the 15 southbound on ramp is so wide and sweeping that there are actually agricultural fields inside the interchange, between 15 south and 84 east.