Okay so we know that the interstate system has rules and regulations but sometimes the rules aren't followed. My examples would be the I-10 in Texas where it is so isolated that it has at-grade intersections. My other is I-78 in New Jersey right before New York it is two separate surface streets (12th and 14th). Are there others?
Are you asking specifically for Interstates that are at-grade or have significant substandard features (like traffic signals or low drawbridges or the like), or asking more generally for Interstates that don't meet current Interstate standards? The former is relatively limited though there are several examples. There are numerous examples of the latter, in no small part due to Interstate standards having changed over the years.
Quote from: froggie on September 14, 2014, 09:47:00 PM
Are you asking specifically for Interstates that are at-grade or have significant substandard features (like traffic signals or low drawbridges or the like), or asking more generally for Interstates that don't meet current Interstate standards? The former is relatively limited though there are several examples. There are numerous examples of the latter, in no small part due to Interstate standards having changed over the years.
That don't meet the standard in at least one way, like yes having traffic signals or being only one lane each direction, and etc. As long as it is breaking one rule, so yeah more than just at grade.
Alaska and Puerto Rico have unsigned Interstates, but are exempt from Interstate standards, so much of the Interstates in those two places are not built to freeway standards. In Puerto Rico, only PRI-1 (which follows PR-52 and PR-18) is a freeway in its entire length; PRI-2 (which follows PR-2 and PR-22) and PRI-3 (which follows PR-26, PR-66, PR-3, and PR-53) only have certain sections built to freeway standards.
A whole shitload don't have high enough bridges or something and thus don't meet current standards.
If you want non-freeways: http://en.wikipedia.org/wiki/List_of_gaps_in_Interstate_Highways#Freeway_gaps
This is where this forum could use something along the lines of the old time FAQs.
Textbook example: I-93 through the White Mountains in New Hampshire.
Quote from: NE2 on September 14, 2014, 11:29:55 PM
A whole shitload don't have high enough bridges or something and thus don't meet current standards.
If you want non-freeways: http://en.wikipedia.org/wiki/List_of_gaps_in_Interstate_Highways#Freeway_gaps
Thanks I'm trying to find some freeways like this for a trip.
Quote from: The Nature Boy on September 15, 2014, 12:11:47 AM
Textbook example: I-93 through the White Mountains in New Hampshire.
What is it there? Narrow I'm guessing?
Quote from: KG909 on September 15, 2014, 12:26:55 AM
Quote from: The Nature Boy on September 15, 2014, 12:11:47 AM
Textbook example: I-93 through the White Mountains in New Hampshire.
What is it there? Narrow I'm guessing?
two lanes
Quote from: KG909 on September 15, 2014, 12:26:55 AM
Quote from: The Nature Boy on September 15, 2014, 12:11:47 AM
Textbook example: I-93 through the White Mountains in New Hampshire.
What is it there? Narrow I'm guessing?
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F8%2F80%2FI-93_Franconia_Notch.jpg%2F1024px-I-93_Franconia_Notch.jpg&hash=5c5db028d63974bf4fc60b2a94d0a1c0ec2783fe)
Very much so
Quote from: The Nature Boy on September 15, 2014, 12:36:57 AM
Quote from: KG909 on September 15, 2014, 12:26:55 AM
Quote from: The Nature Boy on September 15, 2014, 12:11:47 AM
Textbook example: I-93 through the White Mountains in New Hampshire.
What is it there? Narrow I'm guessing?
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F8%2F80%2FI-93_Franconia_Notch.jpg%2F1024px-I-93_Franconia_Notch.jpg&hash=5c5db028d63974bf4fc60b2a94d0a1c0ec2783fe)
Very much so
Ahh but atleast it's divided so that's something. Hopefully one day I can drive there.
Quote from: Pink Jazz on September 14, 2014, 11:19:35 PM
Alaska and Puerto Rico have unsigned Interstates, but are exempt from Interstate standards, so much of the Interstates in those two places are not built to freeway standards. In Puerto Rico, only PRI-1 (which follows PR-52 and PR-18) is a freeway in its entire length; PRI-2 (which follows PR-2 and PR-22) and PRI-3 (which follows PR-26, PR-66, PR-3, and PR-53) only have certain sections built to freeway standards.
So they're unsigned but technically they still exist and, by the most part, are freeways?
Quote from: KG909 on September 15, 2014, 12:45:15 AM
Quote from: Pink Jazz on September 14, 2014, 11:19:35 PM
Alaska and Puerto Rico have unsigned Interstates, but are exempt from Interstate standards, so much of the Interstates in those two places are not built to freeway standards. In Puerto Rico, only PRI-1 (which follows PR-52 and PR-18) is a freeway in its entire length; PRI-2 (which follows PR-2 and PR-22) and PRI-3 (which follows PR-26, PR-66, PR-3, and PR-53) only have certain sections built to freeway standards.
So they're unsigned but technically they still exist and, by the most part, are freeways?
A couple in Puerto Rico are toll roads, but otherwise no.
Go to the FreewayJim YouTube channel and you will see at least two videos of his drives through Franconia Notch on I-93.
I'll see your I-93 through Franconia Notch and raise you I-81 over the Thousand Islands Bridge:
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.nysroads.com%2Fimages%2Fgallery%2FNY%2Fi81%2F100_7930-s.JPG&hash=2d4041098bd21907d1a370826e0a10138eb9b55f)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.nysroads.com%2Fimages%2Fgallery%2FNY%2Fi81%2F100_7933-s.JPG&hash=7b0c233cfb5be892c2fb3a932aea6a3baa776ab5)
I bet the bridge deck is slick from all that dressing.
Quote from: Molandfreak on September 15, 2014, 12:35:20 AM]two lanes
Also: Speed limit is 45mph, exits are sequentially lettered (34A, 34B, 34C) instead of numbered. The eight miles through Franconia Notch are officially designated as a parkway (no heavy trucking permitted) and an act of Congress was required to make exceptions to the normal construction standards for Interstate highways.
Quote from: SidS1045 on September 15, 2014, 10:48:09 PM
Speed limit is 45mph
That's against Interstate standards? I thought it just had to have a 60 mph design standard...
Quote from: Molandfreak on September 15, 2014, 10:56:50 PM
Quote from: SidS1045 on September 15, 2014, 10:48:09 PM
Speed limit is 45mph
That's against Interstate standards? I thought it just had to have a 60 mph design standard...
Speed limit is 45 through Springfield, MA on I-91 and 55 in other parts of the Northeast.
Two that immediately come to mind are that portion of I-93 in NH that's one lane each way (though it looks like a beautiful, unique drive), and we all know that I-180 in Wyoming that calls itself an interstate.
Also, I-264 in Hampton Roads along the Berkley Bridge and the Downtown Tunnel has a variable speed limit, but is usually set to 35.
As a historical example, southbound I-35W in Texas reduced to one lane for a short distance before merging with I-35E north of Hillsboro until the new interchange was built. It was, for a short bit, a three-lane Interstate.
Edit: Google Street View imagery shows that both directions of I-35W have one lane near the I-35E merge in Denton, making for a short stretch of two-lane Interstate.
Quote from: SidS1045 on September 15, 2014, 10:48:09 PM
Quote from: Molandfreak on September 15, 2014, 12:35:20 AM]two lanes
Also: Speed limit is 45mph, exits are sequentially lettered (34A, 34B, 34C) instead of numbered. The eight miles through Franconia Notch are officially designated as a parkway (no heavy trucking permitted) and an act of Congress was required to make exceptions to the normal construction standards for Interstate highways.
If having a 45 mph speed limit makes a freeway not up to interstate standard, then I-35E going SW from downtown St. Paul, MN would not be up to standard, either, although otherwise, it would be.
Of course, the real shocking thing no one has mentioned yet is Breezewood.
Quote from: SidS1045The eight miles through Franconia Notch are officially designated as a parkway (no heavy trucking permitted)
While it's officially designated as a parkway, heavy trucking *IS* permitted.
As for low speed limits, they are not against Interstate standards per se. Low design speeds are. There are situations where a 50 MPH design speed is acceptable (usually involving urban or mountainous areas), but a design speed lower than that requires an exemption and would, technically, be against standards.
Does I-95 N at I-93, south of Boston, count? It's a one-lane tight cloverleaf with an advisory speed of 25mph.
I would argue I-55 at Crump in Memphis is substandard
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I-180 in Wyoming.
No one's mentioned Breezewood yet? Breezewood. Just like I-78 in Jersey City, but probably much worse.
Quote from: wisvishr0 on September 16, 2014, 10:04:17 AM
Does I-95 N at I-93, south of Boston, count? It's a one-lane tight cloverleaf with an advisory speed of 25mph.
I think so, seeing that I-95 was originally to continue north into the city before that project was shelved due to community opposition. I-95 S at the Capital Beltway, north of Washington, was the same way until they built that flyover which somewhat improved thru traffic to a degree.
And while we're at it, I-278 through New York has lots of substandard stretches along the way.
Quote from: Henry on September 16, 2014, 10:50:45 AM
Quote from: wisvishr0 on September 16, 2014, 10:04:17 AM
Does I-95 N at I-93, south of Boston, count? It's a one-lane tight cloverleaf with an advisory speed of 25mph.
I think so, seeing that I-95 was originally to continue north into the city before that project was shelved due to community opposition. I-95 S at the Capital Beltway, north of Washington, was the same way until they built that flyover which somewhat improved thru traffic to a degree.
It is worth noting that there are plans to redo that Canton I-95/93 interchange. The tight single lane cloverleaf ramp (originally intended to carry exiting traffic as opposed to through-traffic) will be replaced with a two-lane fly-over ramp.
Quote from: Henry on September 16, 2014, 10:50:45 AM
And while we're at it, I-278 through New York has lots of substandard stretches along the way.
That implies that I-278 has stretches that aren't substandard. Maybe on Staten Island, but that's it.
I-68 along its viaduct in Cumberland, Md., but I'd suspect it got an exemption.
Quote from: froggie on September 16, 2014, 08:24:00 AM
While it's officially designated as a parkway, heavy trucking *IS* permitted.
Not unless the original regulations on the Parkway were changed. The intent of making one lane in each direction with a low speed limit and keeping heavy trucks out was to minimize environmental damage in the Notch, and in particular to avoid damaging the then-fragile Old Man of the Mountain. Since the Old Man's collapse in 2003, they may have changed the rules.
Quote from: DandyDan on September 16, 2014, 05:56:59 AM
If having a 45 mph speed limit makes a freeway not up to interstate standard, then I-35E going SW from downtown St. Paul, MN would not be up to standard, either, although otherwise, it would be.
Actually, it's slightly too narrow and I believe the Ayd Mill Road interchange is substandard.
Quote from: SidS1045Not unless the original regulations on the Parkway were changed. The intent of making one lane in each direction with a low speed limit and keeping heavy trucks out was to minimize environmental damage in the Notch, and in particular to avoid damaging the then-fragile Old Man of the Mountain. Since the Old Man's collapse in 2003, they may have changed the rules.
Possibly. I never got up to the area until 2004. Whatever the rules may have been before, they certainly do allow trucks through Franconia Notch today.
Quote from: MolandfreakQuote from: DandyDanIf having a 45 mph speed limit makes a freeway not up to interstate standard, then I-35E going SW from downtown St. Paul, MN would not be up to standard, either, although otherwise, it would be.
Actually, it's slightly too narrow and I believe the Ayd Mill Road interchange is substandard.
Inside (left) shoulder isn't standard, as is the pavement on the northbound off-ramp at Ayd Mill Rd. Otherwise, it meets all the requirements for a 55 MPH design speed Interstate.
Quote from: SidS1045 on September 16, 2014, 04:17:59 PM
Quote from: froggie on September 16, 2014, 08:24:00 AM
While it's officially designated as a parkway, heavy trucking *IS* permitted.
Not unless the original regulations on the Parkway were changed. The intent of making one lane in each direction with a low speed limit and keeping heavy trucks out was to minimize environmental damage in the Notch, and in particular to avoid damaging the then-fragile Old Man of the Mountain. Since the Old Man's collapse in 2003, they may have changed the rules.
The parkway directly replaced US 3, which allowed trucks (http://books.google.com/books?id=ym_f5lWpILMC&pg=PA102&q=trucks).
You could include I-190 north of Niagara Falls on the Lewiston-Queenston Bridge between New York and Ontario. 5 lanes undivided, middle three are reversible. While it's the only bridge in the area with a direct and complete Interstate connection (Ontario has 400-series highways connecting to each of the three major bridges), it has the smallest inspection facilities on both sides, causing large backups every day.
While we're talking about New York, I-95 on the Cross Bronx is very substandard. Actually, just about every stretch of Interstate highway in the City is substandard. Upstate, I-790 doesn't connect to its parent in one direction, I-587 connects to its parent via a roundabout, and I-490 has a tight section in Downtown Rochester with sharp curves and a 40 mph speed limit. During its first few years of existence, I-87 had a grade crossing north of Exit 7 in Latham, but that's been gone for decades.
I wouldn't call the Canadian plaza for Lewiston-Queenston "small". More like it has all the traffic. Both Rainbow plazas are smaller (also, ON 420 ends shy of the border due to downloading). Lewiston-Queenston is also one of the few complete freeway-freeway border crossings. All of the others except Blue Water have an at-grade somewhere, typically on the Canadian side just past the plaza (though the Peace Bridge on is on the American side, though that will be fixed if Cuomo has his way).
Many Rochester interstates don't follow standards due to short/nonexistent acceleration/deceleration lanes.
Quote from: vdeane on September 20, 2014, 06:19:29 PM
I wouldn't call the Canadian plaza for Lewiston-Queenston "small". More like it has all the traffic. Both Rainbow plazas are smaller (also, ON 420 ends shy of the border due to downloading). Lewiston-Queenston is also one of the few complete freeway-freeway border crossings. All of the others except Blue Water have an at-grade somewhere, typically on the Canadian side just past the plaza (though the Peace Bridge on is on the American side, though that will be fixed if Cuomo has his way).
Yeah, they've been talking about that one for ages. Needs it because it's one of the busiest border crossings, but the residents in Black Rock (in homes built after the bridge) don't want to move. They could just build another bridge, but the US plaza can't be expanded without taking out 2-3 blocks. Granted, all of one is abandoned and owned by the Peace Bridge Authority (which residents are not happy about), but the one adjacent to the plaza itself is ~75% occupied. They're widening the approach to the full width of the plaza starting just east of the through truss, but that's the most they can do until the idiots in Black Rock shut up and a new plaza can go in.
Quote from: Zeffy on September 16, 2014, 10:48:27 AM
No one's mentioned Breezewood yet? Breezewood. Just like I-78 in Jersey City, but probably much worse.
Breezewood? Sorry, no contest.
Quote from: Billy F 1988 on September 21, 2014, 12:45:28 AM
Quote from: Zeffy on September 16, 2014, 10:48:27 AM
No one's mentioned Breezewood yet? Breezewood. Just like I-78 in Jersey City, but probably much worse.
Breezewood? Sorry, no contest.
Breezewood doesn't even need to be mentioned because it's the most famous of them
Quote from: cl94 on September 20, 2014, 02:26:31 PM
While we're talking about New York, I-95 on the Cross Bronx is very substandard. Actually, just about every stretch of Interstate highway in the City is substandard. Upstate, I-790 doesn't connect to its parent in one direction, I-587 connects to its parent via a roundabout, and I-490 has a tight section in Downtown Rochester with sharp curves and a 40 mph speed limit. During its first few years of existence, I-87 had a grade crossing north of Exit 7 in Latham, but that's been gone for decades.
Technically I-790 has never been up to standards. Prior to the MUD Project in 1989, I-790 was a two-lane road that was maintained by the Thruway authority from the Thruway toll booths to the NY 5-8-12 expressway. They made it much more interstate compatible with the MUD project, but they didn't quite get it all the way.
Quote from: upstatenyroads on September 21, 2014, 01:30:52 PM
Quote from: cl94 on September 20, 2014, 02:26:31 PM
While we're talking about New York, I-95 on the Cross Bronx is very substandard. Actually, just about every stretch of Interstate highway in the City is substandard. Upstate, I-790 doesn't connect to its parent in one direction, I-587 connects to its parent via a roundabout, and I-490 has a tight section in Downtown Rochester with sharp curves and a 40 mph speed limit. During its first few years of existence, I-87 had a grade crossing north of Exit 7 in Latham, but that's been gone for decades.
Technically I-790 has never been up to standards. Prior to the MUD Project in 1989, I-790 was a two-lane road that was maintained by the Thruway authority from the Thruway toll booths to the NY 5-8-12 expressway. They made it much more interstate compatible with the MUD project, but they didn't quite get it all the way.
I know it wasn't. That's the crazy thing about it. It's one of the only Interstate highways that was built as a two-lane, undivided highway with an at-grade intersection. It outdid both I-93 in New Hampshire and I-180 in Wyoming.
I'm surprised nobody mentioned I-83 in PA yet. An old highway with large stretches with substandard or no median shoulders, some areas with almost no outside shoulders, poor exit ramp geometry, outdated interchanges, etc
I think most of I-70/76 Penna Turnpike is substandard as well as I-70 to the ohio border
iPhone
Quote from: Arkansastravelguy on September 21, 2014, 04:32:49 PM
I think most of I-70/76 Penna Turnpike is substandard as well as I-70 to the ohio border
iPhone
I-70 is only substandard between New Stanton and I-79 (the Eastern beginning of the I-70/79 concurrency). Also, I-70 enters WV from PA, not Ohio. I know it's only 11 miles, but it does enter WV before Ohio.
Oh yes you are correct. Oops on my part. I went that way a few weeks ago to see the suspension bridge in Wheeling. Double dumbass oops on my part
iPhone
Schuylkill Expressway (I-76 between Philadelphia and the PA turnpike). And 676, too
I-376 in Pittsburgh is pretty bad
Since they were mentioned, it should be noted that some of I-376 in Pittsburg, as well as I-83 PA, the PA Turnpike, the "Sure-kill", and I-70 between Washington and New Stanton, all pre-date the Interstate system.
Pretty much the entire Kansas Turnpike has a substandard center median, though that too predates the Interstate system.
Many of the recently reconstructed rural interstates in Texas have been done in an urban style with central constant-slope barriers and the travel lanes closer to the middle, rather than a wide depressed median. However, there's typically an 8-10' inner shoulder, so it feels a hell of a lot safer to drive on because there's no sensation of riding the wall like you get on the Kansas Turnpike or the abominations in Pennsylvania.
I-24 eastbound going down Monteagle Mountain in TN was not up to Interstate standards until the mid 80's. This is because the original 3-lane US 41/64 was simply restriped in the early 70's to become I-24 Eastbound after the I-24 westbound lanes were constructed up the other side of the mountain.
https://maps.google.com/?ll=35.204953,-85.804939&spn=0.098325,0.198269&t=h&z=13
Video of the non-standard interstate in the 70's:
http://www.youtube.com/watch?v=XQ3RyvvP_wg
If memory serves me right, all drawbridges?
Quote from: Arkansastravelguy on September 21, 2014, 04:32:49 PM
I think most of I-70/76 Penna Turnpike is substandard
I don't know that I'd say "most" anymore (assuming you are just referring to the stretch that has the 70/76 concurrency), as significant chunks have been reconstructed (with more scheduled)
Quote from: Mr_Northside on September 22, 2014, 05:37:11 PM
Quote from: Arkansastravelguy on September 21, 2014, 04:32:49 PM
I think most of I-70/76 Penna Turnpike is substandard
I don't know that I'd say "most" anymore (assuming you are just referring to the stretch that has the 70/76 concurrency), as significant chunks have been reconstructed (with more scheduled)
West of Breezewood is almost entirely unreconstructed. Unless I'm wrong, I'm pretty sure that much of the stretch between I-83 and King of Prussia is as well. That's enough to constitute "most", especially if you include the (unreconstructed) Northeast Extension.
I went from 99 to WV and almost is under standard. The only section I saw rebuilt was the westbound section right before the tunnel
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Quote from: cl94 on September 22, 2014, 07:44:01 PM
West of Breezewood is almost entirely unreconstructed. Unless I'm wrong, I'm pretty sure that much of the stretch between I-83 and King of Prussia is as well. That's enough to constitute "most", especially if you include the (unreconstructed) Northeast Extension.
Except that, excluding "West of Breezewood", none of those stretches carry I-70. Per
your prior post, I was limiting the PA Turnpike sample size to the 70/76 concurrency.
The ~25 mile section from New Stanton to ~Somerset County line was done in the late 90's/early 2000's; Around the Somerset interchange to the Allegheny Tunnels - ~13 miles, I wanna say early/mid 2000's, and part of the section on the mountain between the tunnels and ~Bedford County (~3 miles). So the 41 or so miles is still less than half, but they're gonna be working on some Bedford County sections.
And once you drive I-70 between Washington & New Stanton, even the non-reconstructed sections of Turnpike aren't really
that bad.
Quote from: adventurernumber1 on September 15, 2014, 11:58:45 PM
Two that immediately come to mind are that portion of I-93 in NH that's one lane each way (though it looks like a beautiful, unique drive), and we all know that I-180 in Wyoming that calls itself an interstate.
Yes, I-180 in Wyoming was built using federal Interstate Highway Funds, yet it was built to a standard lower than a typical Interstate Highway. See https://www.aaroads.com/west/i-180_wy.html for more info on this.
Did anyone mention I-676 yet?
Um, what? Huh? What about I-676?
Quote from: Billy F 1988 on January 01, 2015, 01:51:37 PM
Um, what? Huh? What about I-676?
There is a portion of the highway where travelers heading east towards Camden and the Ben Franklin Bridge must utilize a portion of 6th Street (with signalized intersections) to continue onto the bridge.
For some reason I recall Interstate 280 north east of Toledo as having traffic lights in the early 1980s. I don't know if this is an accurate memory or not, but I'm pretty sure there was at least one set of traffic lights on that route maybe in 1982.
Also, Interstate 690 (aside from the traffic light during the NYS State Fair) used to have a set of traffic lights on it at its western end at the Interstate 90 junction.
Yes 280 in Toledo did have traffic lights in that era . I was surprised it had an interstate designation I took the toll roads over 94 from Chicago to Ontario and can recall complaining it got the red white and blue sign instead of some sort of temp or business route sign
Quote from: Zeffy on January 01, 2015, 11:02:32 PM
Quote from: Billy F 1988 on January 01, 2015, 01:51:37 PM
Um, what? Huh? What about I-676?
There is a portion of the highway where travelers heading east towards Camden and the Ben Franklin Bridge must utilize a portion of 6th Street (with signalized intersections) to continue onto the bridge.
Also 676's exits are unnumbered
Are exit numbers a required thing for Interstate highways? I mean, I can't remember when one didn't have exit numbers, but still, besides the example NE2 posted, I'm wondering if that's a requirement for Interstates, or just a thing that just so happens to be common?
I don't think exit numbers are required because California didn't use them until 2002.
Is the Lauren, NC section of I-74 still allowed to be called that, as it is very substandard. If they have not removed the signs and placed "FUTURE" interstate 74 on it, then it counts.
Also I-80 in Knowlton, NJ that was once part of US 611, is substandard as the Kittatinny Mountains prevent any widening to make it up to standards. Then you have that at grade intersection with Hainesburg Road on the WB side and even poor signing for exit ramps. The DRTJC even has advanced signs for the first PA exit before NJ's last exit for Millbrookville as NJDOT has that one little to no good signing. In fact Exit 1 was only given to it within the past 20 years as the rest of I-80 was numbered for decades prior.
Quote from: Zeffy on January 03, 2015, 06:19:26 PM
Are exit numbers a required thing for Interstate highways?
I think they're now required on all freeways, but that's a recent MUTCD addition.
Quote from: roadman65 on January 03, 2015, 06:41:57 PM
Is the Lauren, NC section of I-74 still allowed to be called that, as it is very substandard. If they have not removed the signs and placed "FUTURE" interstate 74 on it, then it counts.
http://www.gribblenation.net/i7374nc/i74seg15.html
Quote from: KG909 on January 03, 2015, 06:21:01 PM
I don't think exit numbers are required because California didn't use them until 2002.
Also, many really short freeways do not have exit numbers either. Examples include I-195 in Richmond, VA and I-564 in Norfolk, VA.
Exit numbers aren't a requirement because exits aren't a requirement. See I-478, I-587, and I-865.
I-680 eastbound span over the Missouri River is really narrow, the bridge was built many years before the interstate went in. The west bound span was built later and has room to pull over. Also, the east bound 30th street on ramp has a truncated merge area because the bridge is so close to the interchange.
It's probably a very standard full clover leaf, but the I-680/I-29 interchange 3 miles to the east is seeming very outdated to me as an interchange that combines/splits 2 interstates. The I-29 northbound traffic headed west on I-680 has to do the Joey Chitwood with I-680 eastbound traffic that wants to go north on I-29/680. I dislike going that way at night, it is not as safe as it could be, especially with several semis in the melee.
It would be pricey, but I've always though I-680 should head due east to Underwood and connect to I-80 there. I'm not holding my breath, it would reduce the paltry number of folks driving on I-680 from Crescent east to I-80 even further.
I'm not sure what the traffic count can drop to before a road is un-Interstated, but that one has to be close as it is.
I-35E (MN) between I-94 and the Mississippi River was built below standards to placate the NIMBYs.
I-75 southbound through the Lockland Split in Cincinnati. Head over to Mecklenborg's site for the deets:
http://www.cincinnati-transit.net/75-40.html (http://www.cincinnati-transit.net/75-40.html)
The substandard interchange never closed.
QuoteI-35E (MN) between I-94 and the Mississippi River was built below standards to placate the NIMBYs.
Not true. It's built to the Interstate standards of the time (late 80s/early 90s).
Quote from: Zeffy on January 03, 2015, 06:19:26 PMI can't remember when one didn't have exit numbers.
Prior to 1987-88, I-95 from Peabody, MA to the NH State line had unnumbered exits and with the exception of the mid-1970s-era BGS' from MA 110 (current Exit 58) northward; the BGS' didn't have blank exit tabs either.
Prior to the early & mid-1990s, I-95 in PA (especially the Philly portion) had unnumbered exits as well with very few BGS' had blank exit tabs.
I-295 in Delaware still has no exit numbers. Someone snitch to the FHWA.
Quote from: KG909 on September 15, 2014, 12:42:28 AM
Quote from: The Nature Boy on September 15, 2014, 12:36:57 AM
Quote from: KG909 on September 15, 2014, 12:26:55 AM
Quote from: The Nature Boy on September 15, 2014, 12:11:47 AM
Textbook example: I-93 through the White Mountains in New Hampshire.
What is it there? Narrow I'm guessing?
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F8%2F80%2FI-93_Franconia_Notch.jpg%2F1024px-I-93_Franconia_Notch.jpg&hash=5c5db028d63974bf4fc60b2a94d0a1c0ec2783fe)
Very much so
Ahh but atleast it's divided so that's something. Hopefully one day I can drive there.
It is definitely worth the drive - especially in autumn :)
Quote from: NE2 on January 03, 2015, 07:29:00 PM
Quote from: Zeffy on January 03, 2015, 06:19:26 PM
Are exit numbers a required thing for Interstate highways?
I think they're now required on all freeways, but that's a recent MUTCD addition.
Quote from: Pink Jazz on January 03, 2015, 10:04:43 PM
Quote from: KG909 on January 03, 2015, 06:21:01 PM
I don't think exit numbers are required because California didn't use them until 2002.
Also, many really short freeways do not have exit numbers either. Examples include I-195 in Richmond, VA and I-564 in Norfolk, VA.
The MUTCD has included a standard since at least the Millennium Edition (2000) that states exit numbers shall be used on all freeway interchanges.
The 2009 MUTCD introduced the language that reference-based exit numbering shall be used (eliminating consecutive exit numbers).
Quote from: NE2 on January 03, 2015, 06:08:54 PM
Quote from: ekt8750 on January 03, 2015, 06:07:56 PM
Also 676's exits are unnumbered
So are I-865's.
Almost no exit numbers, as long as you don't count the bizzaro Exit 0 that exists only in the world of this sign (http://goo.gl/maps/WUQLw) on 465 WB east of the 465/865 split. :D There being no actual exit, just the default onto 65 NB, I wonder why not just "follow 865 west"? Guess they have one template for all IND-area 465 multiplex jump-off signs, and that includes the exit number at the bottom! :P