Interchanges between Conventional Roads

[TheGrassGuy]

JFK Pkwy and Parsonage Hill Rd in Short Hills, NJ. The only example in NJ, as far as I know.

EDIT Forgot about Port St and Corbin St near Newark

[US 89]

Two off the top of my head in Utah:

-US 89 and SR 51, Springville: historically, this was the split of US 89 and US 91, and it was grade separated in 1959.
-US 89 and SR 68, Bountiful: the bridge was built in the 1930s and originally carried a railroad. When the railroad was removed in the early 1960s, SR 106 was moved from Main Street to 200 West and the old railroad alignment, using the existing bridge to interchange with US 89. 106 has since been renumbered to 68, but the interchange has not changed.

[TheGrassGuy]

Two off the top of my head in Utah:

-US 89 and SR 51, Springville: historically, this was the split of US 89 and US 91, and it was grade separated in 1959.
-US 89 and SR 68, Bountiful: the bridge was built in the 1930s and originally carried a railroad. When the railroad was removed in the early 1960s, SR 106 was moved from Main Street to 200 West and the old railroad alignment, using the existing bridge to interchange with US 89. 106 has since been renumbered to 68, but the interchange has not changed.

How about UT 29 and UT 57? It's a diamond interchange between two double-lane mining roads that lead to nowhere. About as "conventional" as a pair of roads in an interchange can get.

[ErmineNotyours]

I'm still trying to figure out WA 504 near the Mt. St. Hellens visitor center, which is an interchange of itself.  Maybe it's due to peak traffic at certain times, or an ambitious project that got canceled.

[Rothman]

I'm still trying to figure out WA 504 near the Mt. St. Hellens visitor center, which is an interchange of itself.  Maybe it's due to peak traffic at certain times, or an ambitious project that got canceled.

Just looks like it is to divide access to the center and traffic headed further up to the observatory.

[TheHighwayMan3561]

Also in Minneapolis is this (it's on a city line where a bunch of streets are changing names - County 81 is the main road)

https://www.google.com/maps/place/Minneapolis,+MN/@45.0136472,-93.320532,17z/data=!4m5!3m4!1s0x52b333909377bbbd:0x939fc9842f7aee07!8m2!3d44.977753!4d-93.2650108

[TheGrassGuy]

I'm still trying to figure out WA 504 near the Mt. St. Hellens visitor center, which is an interchange of itself.  Maybe it's due to peak traffic at certain times, or an ambitious project that got canceled.

Just looks like it is to divide access to the center and traffic headed further up to the observatory.

Cool. Any other interchanges like that?

[hbelkins]

I saw a video today on the KYTC District 6 page highlighting a new SPUI at the KY 18/KY 237 intersection. Not sure why they built a grade-separated facility here; there used to be a traffic light, and there are other signals on both routes.

And this made me think of the KY 4/US 60 SPUI in Lexington (New Circle is not a freeway here) and US 60/KY 676/US 421 in Frankfort, as well as US 421/US 127/KY 2261 in Frankfort.

[Ketchup99]

State College, PA has a couple - one between old routes 220 and 322 near Port Matilda, and one between University Drive and PA-26.

[TheStranger]

Texas SH 12 and SH Spur 482 in northwest Dallas, near Love Field Airport and 35E:

https://www.google.com/maps/@32.8589786,-96.8816805,16.5z

[sprjus4]

Texas SH 12 and SH Spur 482 in northwest Dallas, near Love Field Airport and 35E:

https://www.google.com/maps/@32.8589786,-96.8816805,16.5z

The interchange area itself does not have any freeway connections, but TX-482 becomes a freeway 1/2 mile south of there.

That small arterial section serves a freeway movement, but nonetheless is still an arterial, not freeway interchange.

[ari-s-drives]

CA-84 and Stanley Boulevard in Livermore, CA

https://www.google.com/maps/@37.676111,-121.8059314,17z

[CoreySamson]

Rural Brazoria County in Texas has a lot of substandard interchanges.
Most of these are due to railroad tracks running parallel to the road.

Cr 220 at Cr 288
https://www.google.com/maps/@29.1248558,-95.4290541,17z/data=!3m1!1e3

Fm 2004 at Cr 288
https://www.google.com/maps/@29.0644192,-95.4263651,17z/data=!3m1!1e3

Fm 523 at Cr 171
https://www.google.com/maps/@29.1854199,-95.3857274,16z/data=!3m1!1e3

Not really sure if this one counts, but it does have ramps
Loop 274 at Tx 288b
https://www.google.com/maps/@29.157065,-95.4311615,17z/data=!3m1!1e3

Tx 6 at Fm 521
https://www.google.com/maps/@29.506636,-95.4605841,16z/data=!3m1!1e3

Tx 332 at Fm 521
https://www.google.com/maps/@29.0573248,-95.5534435,16z/data=!3m1!1e3

Although 288 is a freeway thru most of Brazoria County, it isn't in Freeport, where this is located.
https://www.google.com/maps/@28.9453879,-95.373597,17z/data=!3m1!1e3

[CoreySamson]

And one for Houston: (Yes, there is a cloverleaf in Houston!)

Memorial at Waugh:
https://www.google.com/maps/@29.7643677,-95.4000021,17z/data=!3m1!1e3

[DJ Particle]

And one for Houston: (Yes, there is a cloverleaf in Houston!)

Memorial at Waugh:
https://www.google.com/maps/@29.7643677,-95.4000021,17z/data=!3m1!1e3

Looks like Memorial is a freeway for several blocks.

[D-Dey65]

Did anybody mention Suffolk CR 16 (Horse Block Road) and Long Island Avenue in Medford, NY yet?

[ari-s-drives]

State Line Ave. and 4th Street in Texarkana, TX

https://www.google.com/maps/@33.4194214,-94.0515444,414m/data=!3m1!1e3?hl=en-US

[ari-s-drives]

Macarthur Blvd and University Drive in Irvine, CA

https://www.google.com/maps/@33.648845,-117.8606506,17.18z

[ibthebigd]

US 36 and Indiana 3 between New Castle and Muncie

SM-G950U

[plain]

I don't think US 60 at VA 161 in Richmond has been mentioned yet, so I'll roll with that.

https://goo.gl/maps/AmaHvAmLLK3XUa1o9


Also, there's a loop from US 1/301 SB to Brook Rd (& eventually Chamberlayne Pkwy) SB, not sure if this counts or not.

https://goo.gl/maps/BbhncpveFviCpoCz8

[NWI_Irish96]

US 36 and Indiana 3 between New Castle and Muncie

SM-G950U

Four more I hadn't thought of are IN 63 with US 136, US 36, and both ends of US 41.

[Declan127]

In Riis Park, NY, Beach Channel Drive and Rockaway Beach Blvd. (two parallel roads!) have an interchange. Shore Front Parkway has one that might not be one at 108th Street, and used to have one at Cross Bay Parkway before it was replaced with an intersection and boardwalk enterance.

[X99]

Checked all 18 pages to make sure this wasn't already there.

Elk Vale Road (US 16 "Bypass") and SD 44 in Rapid City. I put "Bypass" in quotes because there's so much built up around it now that it's basically just another arterial. Still enough space for a freeway conversion almost all the way to 79, but that's straying into Fictional.

The US 16/16A Y-stack has already been mentioned, but I figured I would add its official name: the Keystone Wye.

[TravelingBethelite]

Just discovered this one today. TX 64 @ TX 135, near Arp, Texas. https://goo.gl/maps/HuvT33RhkM6Yaa3C6

[TEG24601]

I'm still trying to figure out WA 504 near the Mt. St. Hellens visitor center, which is an interchange of itself.  Maybe it's due to peak traffic at certain times, or an ambitious project that got canceled.

In this case the road used to end at the Visitor's Center, and was later extended to Johnson Ridge.  They didn't want to reroute and re-grade the entire road, so the built the interchange.