What's the most original intersection/interchange you've ever seen?

[NE2]

I-80 and 24th street in Omaha is a pale shadow of that.

I-80 and 24th Street is a half diamond, silly goose.

[kkt]

This is spectacular:

Where is it?

[NE2]

Where is it?

Googleland.

[Jardine]

I-80 and 24th street in Omaha is a pale shadow of that.

I-80 and 24th Street is a half diamond, silly goose.

In that ramps come up to midspan of the overpass, and have a traffic signal controlled intersection there.

[kkt]

Where is it?

Googleland.

Gee, sorry I missed the part where it said "World's Longest Bridge" across the front of the picture.

[NE2]

Reverse image search, dude.

[lordsutch]

This is spectacular:

The interchange of I-10 at I-310 is effectively the same thing, although it's in a swamp instead of open water.

[davewiecking]

Actually, I was thinking I95/395 in Bmore, with the thing off in the distance being a tunnel, not a suspension bridge.

[paulthemapguy]

Holy crap, instead of being so proud of how you know how to use the Google machine, how about providing a frickin answer?

[TheHighwayMan3561]

MN 36/Rice St. in Roseville is the most original one locally. It's a diamond with all four ramps shunted to the north side of the freeway.

https://www.google.com/maps/place/Roseville,+MN/@45.0085679,-93.1063753,1084m/data=!3m1!1e3!4m2!3m1!1s0x52b32bb9adbbffd7:0xd3006c813195322f

[NE2]

Holy crap, instead of being so proud of how you know how to use the Google machine, how about providing a frickin answer?

I'm teaching you assholes how to fish. Be happy.

[kkt]

Holy crap, instead of being so proud of how you know how to use the Google machine, how about providing a frickin answer?

I'm teaching you assholes how to fish. Be happy.

Either that or teaching us to ignore everything you post.

[Rothman]

Holy crap, instead of being so proud of how you know how to use the Google machine, how about providing a frickin answer?

I'm teaching you assholes how to fish. Be happy.

Hm.  Who's the real anus here?

...

Actually, I do like pulling out the "God invented Google for a reason" card when someone asks a public forum something like, "What's the population of the U.S.?"

[CNGL-Leudimin]

Holy crap, instead of being so proud of how you know how to use the Google machine, how about providing a frickin answer?

For any who doesn't want to search, it is the Jiaozhou Bay Bridge on G22 Qingdao-Lanzhou expressway near Qingdao, Shandong, China.

I think the I-95/I-395 MD interchange in Baltimore is similar to that, built over water.

[TEG24601]

I love the Michigan Lefts.  Such a unique solution to a common problem.


As for Interchanges, Anything that either has, or was originally designed as, a 5+ way interchange, like I-5/I-405 at the end of the Freemont Bridge in Portland, OR.


https://www.google.com/maps/@45.5431569,-122.6777273,1494m/data=!3m1!1e3


Same goes for I-5/I/405/US 26/OR 43 at the Marquam bridge, in Portland, OR.


https://www.google.com/maps/@45.5025765,-122.6760286,1495m/data=!3m1!1e3


Finally... for now...


I-5 at Morrison Bridge in Portland.


https://www.google.com/maps/@45.518155,-122.6712865,1495m/data=!3m1!1e3

[jbnv]

I have done a 540 on the Indiana Toll Road.

I'm surprised that someone hasn't mentioned the floating roundabout at US 61 and Causeway Blvd. near New Orleans.

[Pete from Boston]

This is spectacular:

The interchange of I-10 at I-310 is effectively the same thing, although it's in a swamp instead of open water.

I think that's the difference between one being impressive and one being spectacular.

[hbelkins]

Doesn't the Google reverse image search feature work only in Chrome? Not everyone uses Chrome as their browser.

[tckma]

Locally:

The relatively new interchange of MD-295 (the Baltimore/Washington Parkway) with Arundel Mills Boulevard.  It's unique because it's got a wrong-way overpass and crossover.  Eliminates weaving, but I have a feeling some highway engineer made that as a plan just because he could.

Also, the Department of Redundancy Department Interchange between US-29 N and I-70 W has always baffled me.  The left turn that SHA put in does NOT reduce traffic delays as it was intended to do, and causes confusion.

A mile or so south of that you have the interchange between US 29 and US 40.  The engineers who designed this one must have been smoking some good stuff.

MD-100 interchanges look like a highway engineer traveled to Massachusetts and fell in love with rotaries, then went to England and fell in love with left-hand exit ramps.

The I-95/MD-175 interchange is an interesting weave-eliminating design.  I also find the reconfiguration of the I-95/MD-43 interchange to include the new Lexus Lanes an interesting one.  I'm sad to see the crossovers at the old I-95/I-695 northern interchange go with the construction of those same Lexus Lanes.

Not-so-locally, the interchange of the NYS Thruway with I-87 and I-90 in Albany has always been a head-scratcher for me.  It looks like they had intended the Northway to make a more direct interchange with the Thruway but then changed their minds.

[NE2]

Doesn't the Google reverse image search feature work only in Chrome? Not everyone uses Chrome as their browser.

Firefox here.

[paulthemapguy]

Locally:

The relatively new interchange of MD-295 (the Baltimore/Washington Parkway) with Arundel Mills Boulevard.  It's unique because it's got a wrong-way overpass and crossover.  Eliminates weaving, but I have a feeling some highway engineer made that as a plan just because he could.

A terminal DDI?  Interesting!  Someone took the diverging diamond and applied it to an interchange where the surface road ends.  "I get that feeling of someone "[Making] that a plan just because he could," too, but I kinda feel that way about all DDI's.  I like this application because it takes up less space than a trumpet, and it eliminates a flyover/bridge from a would-be free flow interchange.

[Mr_Northside]

Locally:

The relatively new interchange of MD-295 (the Baltimore/Washington Parkway) with Arundel Mills Boulevard.  It's unique because it's got a wrong-way overpass and crossover.  Eliminates weaving, but I have a feeling some highway engineer made that as a plan just because he could.

A terminal DDI?  Interesting!  Someone took the diverging diamond and applied it to an interchange where the surface road ends.  "I get that feeling of someone "[Making] that a plan just because he could," too, but I kinda feel that way about all DDI's.  I like this application because it takes up less space than a trumpet, and it eliminates a flyover/bridge from a would-be free flow interchange.

I think it also allows for a potential extension of the road as well.

[jakeroot]

Is there any operational advantage of a terminal DDI versus a terminal diamond? Both are two-phase signals, though (in some states) a terminal diamond allows left turns on red.

[johndoe]

Is there any operational advantage of a terminal DDI versus a terminal diamond? Both are two-phase signals, though (in some states) a terminal diamond allows left turns on red.

I'm not sure I understand; there is no signal at the southbound ramps.  A traditional diamond would require one, along with a three phase signal at the northbound ramps (although you wouldn't expect anyone on the off-ramp left).

I liked the Florida example, sort of a "continuous green" situation.  Also kind of reminiscent of the "volleyball" tri-level.

Speaking of tri-level, here's a cool one in Kansas.  You don't often see three routes cross at the same point, especially at a service interchange!  https://www.google.com/maps/@38.8547549,-94.8158158,16.25z

[vdeane]

Not-so-locally, the interchange of the NYS Thruway with I-87 and I-90 in Albany has always been a head-scratcher for me.  It looks like they had intended the Northway to make a more direct interchange with the Thruway but then changed their minds.

That's essentially what happened.  I-87 was intended to run parallel to the Thruway between I-90 and I-787, but that freeway was never built.  More recently, the Thruway planned to build E-ZPass-only ramps to connect there, but that never happened either (I assume that idea is dead as the time to do it would have been with the recent widening).