RIRO Intersections

[someone17]

Ah, yes. RIROs, one of the most common intersections on limited access highways. Are there any other great examples other than King's Highway 11 in Ontario?

Thanks, y'all!

[jeffandnicole]

Ah, yes. RIROs, one of the most common intersections on limited access highways. Are there any other great examples other than King's Highway 11 in Ontario?

Thanks, y'all!

Thousands.  Use the search feature to locate other existing threads about RIROs.

[Ned Weasel]

I-25 in Colorado has a pair of true RIRO intersections: https://goo.gl/maps/NcVotQKgRaEP9eDP9 .  Plenty of other Interstates have exit and entrance ramps so tight, they're almost T-shaped RIRO intersections.

[STLmapboy]

Some of the intersections on CA-71 in Pomona became RIROs when lights were removed. The Arroyo Seco Parkway also famously has some tight RIROs.

[webny99]

Just name dropping NY 17 (future I-86). Here is one of several examples between Binghamton and I-87.

[MCRoads]

I-25 in Colorado has a pair of true RIRO intersections: https://goo.gl/maps/NcVotQKgRaEP9eDP9 .  Plenty of other Interstates have exit and entrance ramps so tight, they're almost T-shaped RIRO intersections.

Wow, driven past that, and thought it was just a rural pull off, but no, it's an actual exit!

[thefraze_1020]

Washington State has one on I-5 at the Toutle River (exit 59) https://www.google.com/maps/@46.4183335,-122.8907187,3a,75y,243.73h,82.16t/data=!3m6!1e1!3m4!1sPuG2ahvVaqSR-tw48-gNgw!2e0!7i13312!8i6656?hl=en

They have decent room for deceleration and acceleration, but these are very tight for Washington standards.

I recall that I-90 in Wyoming has a bunch between Buffalo and Sundance.

[TheHighwayMan3561]

Two I can think of in the MSP area:

US 169 northbound at 16th St in Hopkins. The corresponding southbound RIRO was removed a couple years ago.

US 10 at Prior Ave in Shoreview, which was part of a project to remove as many at-grade turns as possible off the stretch between 35W and 694.

[danzarblx]

Does exit 339 on I-75 in Michigan count? I believe that's one, It's right before the Mackinac Bridge.

[I-55]

US-24 at Bruick Rd in Allen County, IN.

[GenExpwy]

Just name dropping NY 17 (future I-86). Here is one of several examples between Binghamton and I-87.

Interesting that there is just a string of closely-spaced delineators – not guardrail – in the median, where the gravel suggests that a lot of people have cut across

[KEK Inc.]

There's a few in San Mateo on US-101

In Vancouver, WA-500 has had all of its signals removed between I-5 and I-205.  Many of the intersections are just RIRO.

Here's one in Commerce, CA on I-5.

[STLmapboy]

There's a few in San Mateo on US-101

In Vancouver, WA-500 has had all of its signals removed between I-5 and I-205.  Many of the intersections are just RIRO.

Here's one in Commerce, CA on I-5.

Fixed the links for you.

[roadman65]

A few that are part of an interchange lie in NJ.

US 22 at Bloy Street in Hillside are two RIRO making the exchange to be an actual intersection rather than interchange. The Jersey barrier median is the control to make it the RIRO on Route 22.

Many others in the Garden State as well. One on I-80 at Hainesville Road too.

[webny99]

Just name dropping NY 17 (future I-86). Here is one of several examples between Binghamton and I-87.

Interesting that there is just a string of closely-spaced delineators – not guardrail – in the median, where the gravel suggests that a lot of people have cut across

Indeed. I would guess that was a legal maneuver at one point in time.

[US 89]

I-25 in Colorado has a pair of true RIRO intersections: https://goo.gl/maps/NcVotQKgRaEP9eDP9 .  Plenty of other Interstates have exit and entrance ramps so tight, they're almost T-shaped RIRO intersections.

Wow, driven past that, and thought it was just a rural pull off, but no, it's an actual exit!

Surprisingly close to Pueblo for something like that, too. I know of multiple very tight exits on I-80 in Wyoming, but nothing comes close to that Colorado "exit".

[KCRoadFan]

In Massachusetts, I believe Route 9 through Shrewsbury east of Worcester - and again through Framingham and Natick - has long stretches of RIRO driveways and side roads, meaning that you have to drive a long way out of your way to reach a property on the opposite side of the road. (Anyone in MA who can attest to this?)

[I-55]

Here you can see a RIRO under construction in Ohio on US-35 in Jackson.

[cpzilliacus]

U.S. 50 E/U.S.301 N approaching Sandy Point, Maryland and the WPL (Chesapeake Bay) bridge - RIRO on the cheap.

U.S. 50 and U.S. 301 at Chester, Maryland, on Kent Island east of the WPL Bridge - both sides of the road.

[sparker]

There's a few in San Mateo on US-101

In Vancouver, WA-500 has had all of its signals removed between I-5 and I-205.  Many of the intersections are just RIRO.

Here's one in Commerce, CA on I-5.

Fixed the links for you.

I wouldn't describe the two CA instances as true RIRO's; they're more "folded diamonds", although the I-5 example is pretty "scrunched up" between the NB carriageway and Telegraph Road (I've used the offramp several times, it's a real PITA!).  There are some remaining RIRO's on CA 99, notably north of Delano and in Chowchilla. 

[Evan_Th]

I wouldn't describe the two CA instances as true RIRO's; they're more "folded diamonds", although the I-5 example is pretty "scrunched up" between the NB carriageway and Telegraph Road (I've used the offramp several times, it's a real PITA!).  There are some remaining RIRO's on CA 99, notably north of Delano and in Chowchilla.

I'd say the same about the Toutle River, WA example upthread.

[kphoger]

There's a few in San Mateo on US-101

In Vancouver, WA-500 has had all of its signals removed between I-5 and I-205.  Many of the intersections are just RIRO.

Here's one in Commerce, CA on I-5.

Fixed the links for you.

I wouldn't describe the two CA instances as true RIRO's; they're more "folded diamonds", although the I-5 example is pretty "scrunched up" between the NB carriageway and Telegraph Road (I've used the offramp several times, it's a real PITA!).  There are some remaining RIRO's on CA 99, notably north of Delano and in Chowchilla. 

Disagree.  They look like RIROs to me.  The one on US-101 doesn't even have a corresponding exit on the other side of the highway.  Hardly a diamond at all, folded or not.  For the one on I-5, the two sides of the highway don't even connect to the same road;  but it's an edge case, because they look a lot like Oklahoma City's exits to frontage roads on I-35.

A folded diamond interchange has loop ramps.

[Ned Weasel]

I wouldn't describe the two CA instances as true RIRO's; they're more "folded diamonds", although the I-5 example is pretty "scrunched up" between the NB carriageway and Telegraph Road (I've used the offramp several times, it's a real PITA!).  There are some remaining RIRO's on CA 99, notably north of Delano and in Chowchilla. 

Disagree.  They look like RIROs to me.  The one on US-101 doesn't even have a corresponding exit on the other side of the highway.  Hardly a diamond at all, folded or not.  For the one on I-5, the two sides of the highway don't even connect to the same road;  but it's an edge case, because they look a lot like Oklahoma City's exits to frontage roads on I-35.

A folded diamond interchange has loop ramps.

If these count as RIROs, let's not forget I-68 in Cumberland, Maryland:

https://goo.gl/maps/VeR9isYUe83Ucftn8
https://goo.gl/maps/fYcreR4tzwckr243A

[vdeane]

It's possible to be both a folded diamond and a RIRO.  Same for cloverleaf and RIRO.

[ErmineNotyours]

My favorite: US 12, Walla Walla, built at the place where the elevated freeway went down to ground level for a railroad crossing that has since been removed.