Which 3DIs get roasted the most/least?

[Flint1979]

The thing that I can't stand about I-35E (Minnesota) is that it has a 45 mph speed limit that is strictly enforced in St. Paul.

Sorry, but in my experience that just isn't true. A number of times I've crused through that section doing 60+ and was getting passed myself.



Edit: it's also important to note that the 45 MPH speed limit (and truck restriction) is partly the reason the I-35E freeway through St. Paul exists at all. Yes, it's dumb, but it's one concession the state of Minnesota had to make in order to get all the NIMBYs to finally allow construction of the freeway to proceed.

Yep I know all about that highway. A friend of mine from Apple Valley told me about the 45 mph speed limit and said to watch your speed through there. I would indeed use 35E instead of 35W for the thru route anyway.

[hotdogPi]

I-172 has to be up there for most roasted. It exists to serve a city of 40k people and doesn't even do that especially well (signs tell you to take IL-57 to downtown Quincy instead), it splits off of I-72 about six miles from the latter's western terminus, and much like its parent people are constantly proposing to extend it without success. And it sure doesn't help that I-72 is pretty roasted in its own right.

Nobody mentions I-172 because I-180 exists in the same state.

[webny99]

I-490 has a posted 40 mph speed limit, which I believe is the lowest on the entire interstate system*. However, I don't recall anyone particularly roasting it for this reason. Even WITH the 40 mph limit we get truck rollovers at Exit 16 with disturbing frequency 

I really enjoy roasting the four-lane segment between Exit 25 and Exit 27. With an AADT of around 70,000, it is an atrocious freight train of vehicles pretty much 24/7. It must be the 3di that most desparately needs a widening... 
even if it's only me that complains about it 



*I-90 in downtown Cleveland has a curve with a 35 mph advisory speed, but that's not the actual posted limit.

[froggie]

^ I-264 through the Downtown Tunnel/Berkeley Bridge complex in Norfolk, VA is a signed 35 MPH limit.

[TheHighwayMan3561]

I-394 has a 40 MPH limit between I-94 and its east end. It probably doesn't need to drop to 40 until closer to the Washington/3rd exit, but it is what it is.

[index]

I believe I-H201 has a speed limit of 35 MPH on one segment.

[webny99]

^ I-264 through the Downtown Tunnel/Berkeley Bridge complex in Norfolk, VA is a signed 35 MPH limit.

I-394 has a 40 MPH limit between I-94 and its east end.

I believe I-H201 has a speed limit of 35 MPH on one segment.

I figured as much... I guess wherever I heard that from was either outdated or inaccurate. In any case, I'd much rather roast that four-lane segment than the speed limit

[Flint1979]

Well then let's talk about the 25 mph curve on I-75 in Detroit where I-75 intersects with itself and I-375. Even though I-75 has to go through an exit ramp it's a thru route so this counts.

It's such a lovely curve too.

https://www.google.com/maps/@42.3419397,-83.0456865,3a,75y,91.94h,89.59t/data=!3m6!1e1!3m4!1sV2QHKjP24-Q8_OL00E7mUg!2e0!7i13312!8i6656

[Flint1979]

SB I-75 has a 30 mph curve at the same interchange too.

https://www.google.com/maps/@42.3462345,-83.044908,3a,75y,154.9h,89.87t/data=!3m6!1e1!3m4!1ssOuIjomkr4uSIFNdbXUzzA!2e0!7i13312!8i6656

[Flint1979]

I-75 also still has a 55 mph speed limit in part of the city of Detroit but so does I-94, I-96, The Lodge, The Southfield and The Davison none of which is enforced everyone does 80+ mph. But I have seen it enforced one time in my life, I was on I-94 near the Harper Woods/Detroit border going westbound and a cop was in the mix with the traffic and everyone was doing about 55 mph, I noticed a car weaving around traffic behind me and blew past me doing at least 80 mph, the cop nailed him. I thought to myself now that was dumb we're moving along here in heavy traffic doing right around the speed limit and here comes an idiot blowing around everyone it was just ironic that a cop saw this because they do not monitor the freeways in the city of Detroit very well at all. It was a Wayne County Sheriff that pulled the car over.

[Beltway]

The DC I-395 ramps between the Center Leg and the Southwest Freeway are 35 mph.

[bing101]

CA-480/I-480 San Francisco is still roasted even years after being decommissioned due to the Embarcadero freeway's original intent to connect to I-280 and Presidio Parkway/Doyle Drive.

[ftballfan]

I-75 also still has a 55 mph speed limit in part of the city of Detroit but so does I-94, I-96, The Lodge, The Southfield and The Davison none of which is enforced everyone does 80+ mph. But I have seen it enforced one time in my life, I was on I-94 near the Harper Woods/Detroit border going westbound and a cop was in the mix with the traffic and everyone was doing about 55 mph, I noticed a car weaving around traffic behind me and blew past me doing at least 80 mph, the cop nailed him. I thought to myself now that was dumb we're moving along here in heavy traffic doing right around the speed limit and here comes an idiot blowing around everyone it was just ironic that a cop saw this because they do not monitor the freeways in the city of Detroit very well at all. It was a Wayne County Sheriff that pulled the car over.

I-96 is mostly 70 (west of I-94; the Jeffries is much newer than the other Detroit freeways) and I think the Lodge is 70 in northwestern Detroit (I know it's 70 in Southfield)

[thenetwork]

I-75 also still has a 55 mph speed limit in part of the city of Detroit but so does I-94, I-96, The Lodge, The Southfield and The Davison none of which is enforced everyone does 80+ mph. But I have seen it enforced one time in my life, I was on I-94 near the Harper Woods/Detroit border going westbound and a cop was in the mix with the traffic and everyone was doing about 55 mph, I noticed a car weaving around traffic behind me and blew past me doing at least 80 mph, the cop nailed him. I thought to myself now that was dumb we're moving along here in heavy traffic doing right around the speed limit and here comes an idiot blowing around everyone it was just ironic that a cop saw this because they do not monitor the freeways in the city of Detroit very well at all. It was a Wayne County Sheriff that pulled the car over.

I-96 is mostly 70 (west of I-94; the Jeffries is much newer than the other Detroit freeways) and I think the Lodge is 70 in northwestern Detroit (I know it's 70 in Southfield)

Does I-96/Jeffries still have dual speed limits in Detroit?  ISTR it was 70 in the I-96 EXPRESS lanes and 55 in the I-96 LOCAL lanes.

[Flint1979]

I-75 also still has a 55 mph speed limit in part of the city of Detroit but so does I-94, I-96, The Lodge, The Southfield and The Davison none of which is enforced everyone does 80+ mph. But I have seen it enforced one time in my life, I was on I-94 near the Harper Woods/Detroit border going westbound and a cop was in the mix with the traffic and everyone was doing about 55 mph, I noticed a car weaving around traffic behind me and blew past me doing at least 80 mph, the cop nailed him. I thought to myself now that was dumb we're moving along here in heavy traffic doing right around the speed limit and here comes an idiot blowing around everyone it was just ironic that a cop saw this because they do not monitor the freeways in the city of Detroit very well at all. It was a Wayne County Sheriff that pulled the car over.

I-96 is mostly 70 (west of I-94; the Jeffries is much newer than the other Detroit freeways) and I think the Lodge is 70 in northwestern Detroit (I know it's 70 in Southfield)

That's why I said part of the city of Detroit. The area's that are 55 mph in the city of Detroit are mostly within the Grand Blvd. loop. I think I-94 is the only one that keeps 55 mph through the city. The Lodge has a 55 mph sign at the Schaefer overpass. I-96's 70 mph limit starts at I-94 and the stretch that has a 55 mph of course has a min limit of 45 mph only a 10 mph difference. It really doesn't matter because no one goes 55 on any stretch of freeway in the Detroit area unless there's a lot of traffic. The Southfield Freeway to my knowledge has always been 55 mph but that freeway is setup different than most freeways since it's at grade instead of in an urban depressed ditch. And you are correct about the Jeffries it's last gap in the Detroit area was filled in 1977.

[Flint1979]

I-75 also still has a 55 mph speed limit in part of the city of Detroit but so does I-94, I-96, The Lodge, The Southfield and The Davison none of which is enforced everyone does 80+ mph. But I have seen it enforced one time in my life, I was on I-94 near the Harper Woods/Detroit border going westbound and a cop was in the mix with the traffic and everyone was doing about 55 mph, I noticed a car weaving around traffic behind me and blew past me doing at least 80 mph, the cop nailed him. I thought to myself now that was dumb we're moving along here in heavy traffic doing right around the speed limit and here comes an idiot blowing around everyone it was just ironic that a cop saw this because they do not monitor the freeways in the city of Detroit very well at all. It was a Wayne County Sheriff that pulled the car over.

I-96 is mostly 70 (west of I-94; the Jeffries is much newer than the other Detroit freeways) and I think the Lodge is 70 in northwestern Detroit (I know it's 70 in Southfield)

Does I-96/Jeffries still have dual speed limits in Detroit?  ISTR it was 70 in the I-96 EXPRESS lanes and 55 in the I-96 LOCAL lanes.

Yes they have that. It's 70 in the Express and 55 in the Local but trust me no one does 55 on any freeway in Detroit you'll be getting tailgated if you do. The norm is about 80 mph.

[ilpt4u]

Are there any other 3-di's that run multiplexed like I-271 and I-480 do? I can't seem to think of any other one's that do.

If the IL 53 Lake County Extension Freeway/Tollway is ever built, there is a pretty good chance that I-290 and I-355 would have a Multiplex in the Schaumburg area of Chicago Suburbs

The route would need to be approved and constructed, before numbering decisions would be finalized. An I-355 designation extension is one of the possibilities

I-290 and I-294 just miss multiplexing...they run on separate, parallel carriageways for a few miles just north of the Hillside Strangler Interchange

[jaehak]

Least roasted: I-295 in Massachusetts/Rhode Island. It ends at an Interstate at both ends, connects to its parent, isn't unused or too congested, isn't too long or short, is numbered correctly, doesn't exit itself (looking at you, I-293), isn't overlapped with other routes for most or all of its length, and hasn't had any proposals to renumber or extend it in Fictional.

It bypasses Providence, so it's hardly the 405 or the Tristate Tollway or a 3di bypassing a real city, thus the lack of congestion. Its northern intersection with 95 is a half cloverleaf, and its southern one is not complete and Breezwoods if someone wishes to drive from southbound 295 to northbound on 95, and vice versa.  It's northbound control city is Woonsocket, a city that sounds made up by the Family Guy writers.  Also, its parent is 95, a fullly roastable 2di that remains every bit as incomplete and split at 69, 73, 74, and 99. Other than that, I'm sure 295 is totally legit   

[SteveG1988]

Interstate 676.

No exit numbers, rather short road though so no need for them for the most part.

Does it cross into NJ on the bridge, or is 676 on the NJ side an entirely seperate roadway?

Does 676 continue through the traffic lights in PA to get onto the bridge?

All these are debate topics that 676 brings up.

[vdeane]

The answers to those questions depend on which state you ask.  NJ considers I-676 to be one continuous route following the bridge with a couple at-grades between the bridge and Vine Street Expressway.  PA considers I-676 to follow the Vine Street Expressway to I-95, with I-676 in NJ being a separate interstate that ends in the middle of the bridge.  I made sure to clinch both.

[TBKS1]

I could probably post here that I-630 has a speed limit of 40 MPH at the very end near the junction of I-30.

[Google Street View]

As a life long Central Arkansas citizen can tell you, no one ever drives 40 here.

[MantyMadTown]

I-894, or I-41 (which should be a 3di)

I-41 outside the 894 stretch is perfectly fine. I don't see how I-41 should be a 3di at all. It's pretty much a separate route that stands out on its own, so it's not like it's an auxillary of I-43. In Milwaukee however I don't see how 894 is necessary. It's merged with I-41 and I-43 all the way through.

[TheHighwayMan3561]

The reason I-894 still exists (and will continue to exist) is because of local familiarity, as well as maintaining a marked bypass for I-94.

[SteveG1988]

The answers to those questions depend on which state you ask.  NJ considers I-676 to be one continuous route following the bridge with a couple at-grades between the bridge and Vine Street Expressway.  PA considers I-676 to follow the Vine Street Expressway to I-95, with I-676 in NJ being a separate interstate that ends in the middle of the bridge.  I made sure to clinch both.

i676: pissing contest of where it ends.