Interstate you are the closest to clinching?

[Rothman]

I wouldn't count it as clinched, and I don't even care about clinching.

That's not just an irrelevant piece of an interchange.  It's the connection to US-11.

Sure, it's the connection to US 11... from I-81. It's completely irrelevant to traffic connecting between I-476 and I-81. It's basically a coincidence that you can even access US 11 from I-476. If it wasn't for the convoluted I-81/I-476 connection, there would be no access between US 11 and I-476.

With that said, the reason I'd call it clinched is because I strongly disagree with the I-476 designation extending beyond the ramps to I-81. You shouldn't need to use that section to clinch I-476, especially given the following:

(1) It's a glorified exit/entrance ramp
(2) It's only two lanes (and possibly not to interstate standards?)
(3) As mentioned, PennDOT/PTC have a direct I-476/I-81 connection in their long-term plans, which would remove the I-476 designation from this segment.

It's the connection between I-476 and US-11.

If you haven't traveled from the big curve all the way to US 11, you have not clinched I-476. 

[dlsterner]

Of course not counting the Interstates already 100% clinched.  I count 67 such Interstates (most of them are very short 3di)

Closest to clinching (by distance):
     Any:  I-395 (Maine) - only need 0.22 miles  (95.6% clinched)
      2di:  I-11 - only need 14.85 miles  (34.3% clinched) - yeah, kind of silly to include this.

Closet to clinching (by percentage):
    Any:  I-395 (Maine) - 95.6% clinched.  Only need the stub from I-95 to its western end at US 2.
     2di:  I-77 - 94.4% clinched.  Only need the portion between Akron and Cleveland.

[SkyPesos]

Besides I-71 and I-78, which I've clinched, the following are 2di I've traveled at least 60% of:

I-26: 218/306 (71%), missing portion north of I-40/240
I-74: 285/417 (68%), missing portion west of I-55
I-39: 202/306 (66%), missing portion north of I-90/94
I-76: 288/435 (66%), missing portions between I-79 and I-376, and east of US 15
I-68: 71/113 (63%), missing portion west of US 40/US 219
I-77: 389/613 (63%), missing portions between I-64 and US 30, and north of I-76
I-75: 1118/1786 (62%), missing portions south of Florida's Turnpike and north of I-94

I'll look at my 3di later.

[webny99]

It's the connection between I-476 and US-11.

Yes, but ...

It's basically a coincidence that you can even access US 11 from I-476. If it wasn't for the convoluted I-81/I-476 connection, there would be no access between US 11 and I-476.

[plain]

I-64: missing everything west of I-164 (now I-69)

I-76 (eastern): missing everything west of I-80 except the I-76/77 overlap

I-83: missing everything north of PA 581

I-271: missing I-71 to I-77

[bassoon1986]

I-66 - 99.11% missing the easternmost section

I-59 - 65.91% missing Meridian south

For 3dis:
I-820 - 90.95% missing the SW portion between I-30 and I-20

I-540(AR) 86.81% missing from US 71 towards Oklahoma


iPhone

[JayhawkCO]

I-540(AR) 86.81% missing from US 71 towards Oklahoma
iPhone

Isn't that all of what's left of I-540?

Chris

[ctkatz]

I may have been on I 24 when I was 5 or 6.  I remember the trip but the I 24 section if it happened was in the dark so if I was on I 24 anywhere north of nashville, I don't count it.  I say that as I have been on all of I 24 from the beginning of the I 65 duplex all the way down to chattanooga and a few years ago got the other end of I 24 east to the western kentucky parkway. that middle section I need to get. quite doable in a day or a weekend vacay in nashvegas.

second one to clinch is I 65 south of I 85.  that one I definitely have not been on. but that trip to clinch (as well as 3 and 4 on my list I 90 and 80) will have to be dedicated road trips to finish.

[bassoon1986]

I-540(AR) 86.81% missing from US 71 towards Oklahoma
iPhone

Isn't that all of what's left of I-540?

Chris

No. One more exit to US 271 North. I-540 ends there and 271 continues into OK.


iPhone

[vdeane]

It's the connection between I-476 and US-11.

Yes, but ...

It's basically a coincidence that you can even access US 11 from I-476. If it wasn't for the convoluted I-81/I-476 connection, there would be no access between US 11 and I-476.

Are you saying the milemarker is lying?

Also, who's to say that there wouldn't have been access between US 11 and I-476, or that it won't go there when the direct connection is built (which looks more like a pair of ramps than a realigned mainline or interchange replacement; it's very half-assed).

[Mapmikey]

2di - missing 6 miles (2%) of I-26 in NC
3di - missing 0.11 miles of I-471 in Cincinnati

[webny99]

It's the connection between I-476 and US-11.

Yes, but ...

It's basically a coincidence that you can even access US 11 from I-476. If it wasn't for the convoluted I-81/I-476 connection, there would be no access between US 11 and I-476.

Are you saying the milemarker is lying?

Also, who's to say that there wouldn't have been access between US 11 and I-476, or that it won't go there when the direct connection is built (which looks more like a pair of ramps than a realigned mainline or interchange replacement; it's very half-assed).

No, only that the funky U-shape routing is, in typical PA fashion, the result of a bungled interchange design.

I actually don't think there's any real reason to suspect that there would have been access between US 11 and I-476 if the I-81/I-476 junction was built properly to begin with. The first I-476 crossing of US 11 (over the valley) is much too high for an interchange, and a direct interchange with I-81 wouldn't even go near US 11 for a second time.

Information on the proposed improvements is rather sparse, but whatever ends up happening, it would be despicable not to remove the I-476 designation from the US 11 connector. It's unjustifiable even as it is now, much less with an improved connection to I-81.

[7/8]

2di: I-76 (W) at 90.49%, missing the portion west of E-470
3di: I-476 at 99.8%, missing the controversial US 11 connection
Second closest is I-390 at 85.8%, missing the portion north of I-90 (NYS Thruway)

[KCRoadFan]

Probably I-70 and I-64.

I-70: just over 75% - from Exit 259 in Colorado (the Morrison/Red Rocks exit west of Denver) to the exit for I-270 in Frederick, MD
I-64: about 81% - everything except for the stretch in Virginia east of Exit 120 (Charlottesville)

[sparker]

I'm pretty damn close on I-90, missing only:
1. in MN, between US 63 and US 52 south of Rochester, 9 miles.
2. in NY and MA, between I-787 in Albany and US 20 near Lee, MA, 42 miles.
3. from the pre-Big Dig I-90/93 junction in (below) Boston to Logan Airport; let's call it 4 miles.

55 miles short due to (a) wanting to see what the Mayo Clinic looked like, (b) family in Bennington, VT, and (c) no need to go to Logan (I avoid airports and airport approach roads like the plague when possible!). 

[DandyDan]

For 2di's, the only one I have clinched is I-88 in Illinois. I assume I-66 is the 2di I am closest to clinching, as I have all except everything west of exit 13 and east of the Beltway. I also have zero chance of actually clinching it anytime soon.

For 3di's, the closest I am to clinching is I-435, where the only piece I am missing is the section between I-49/I-470/US 71 and Bannister Road.

[pianocello]

2di: I-96. I'm just missing the segment between I-94 and I-75.

3di: I don't think there are any that I've traveled on more than half but not all. I think I-295 (Jacksonville) is my closest, in terms of both mileage and likelihood of clinching.

[Mapmikey]

It's the connection between I-476 and US-11.

Yes, but ...

It's basically a coincidence that you can even access US 11 from I-476. If it wasn't for the convoluted I-81/I-476 connection, there would be no access between US 11 and I-476.

Are you saying the milemarker is lying?

Also, who's to say that there wouldn't have been access between US 11 and I-476, or that it won't go there when the direct connection is built (which looks more like a pair of ramps than a realigned mainline or interchange replacement; it's very half-assed).

No, only that the funky U-shape routing is, in typical PA fashion, the result of a bungled interchange design.

I actually don't think there's any real reason to suspect that there would have been access between US 11 and I-476 if the I-81/I-476 junction was built properly to begin with. The first I-476 crossing of US 11 (over the valley) is much too high for an interchange, and a direct interchange with I-81 wouldn't even go near US 11 for a second time.

Information on the proposed improvements is rather sparse, but whatever ends up happening, it would be despicable not to remove the I-476 designation from the US 11 connector. It's unjustifiable even as it is now, much less with an improved connection to I-81.

The AASHO application for I-476 says it ends at I-81, which means I-476 on paper (mileposts notwithstanding) ends at the trumpet connector (meaning both towards I-81 and US 6-11 are ramps) or it ends at I-81 itself.

The I-476 interchange at US 6-11 is not an accident.  The Northeast Extension was planned to seamlessly continue north along what became I-81 to New York.  The U-turn is where the continuation would have been. 

The NE Extension started construction 3/25/54, and its routing would have been decided before that, meaning I-81 as we know it now was not in the planning stages yet.  The endpoint of Clarks Summit is described as temporary (pending further extension) but the interchange is not described that way.  The 1955 Turnpike Report has good info.

As late as the 1960 PA Official, there are dotted lines for I-81 in NE Penna only north of Clarks Summit, which suggests they were still contemplating seamless tie in from the Turnpike with no interchange.

[SkyPesos]

This sounds like the debate of whether using the exit and entrance ramps in an interchange instead of the through freeway would count as a clinch again...

[webny99]

The AASHO application for I-476 says it ends at I-81, which means I-476 on paper (mileposts notwithstanding) ends at the trumpet connector (meaning both towards I-81 and US 6-11 are ramps) or it ends at I-81 itself.

The I-476 interchange at US 6-11 is not an accident.  The Northeast Extension was planned to seamlessly continue north along what became I-81 to New York.  The U-turn is where the continuation would have been. 

The NE Extension started construction 3/25/54, and its routing would have been decided before that, meaning I-81 as we know it now was not in the planning stages yet.  The endpoint of Clarks Summit is described as temporary (pending further extension) but the interchange is not described that way.  The 1955 Turnpike Report has good info.

As late as the 1960 PA Official, there are dotted lines for I-81 in NE Penna only north of Clarks Summit, which suggests they were still contemplating seamless tie in from the Turnpike with no interchange.

All good info and very interesting. Thank you!

[NWI_Irish96]

This sounds like the debate of whether using the exit and entrance ramps in an interchange instead of the through freeway would count as a clinch again...

It's more of a debate as to whether what exists beyond the I-81 ramps is a short segment of freeway followed by a separate interchange, or if it's a longer set of ramps that is a part of the same interchange.

Somewhat similar to the debate about the short segment of I-65 between I-90 and US 12/20.

In both cases, I would suggest that they are both segments of freeway based on the presence of mileage markers.

[jeffandnicole]

Relatively close to clinching I-95.  I know I've never been on 95 north of Portland, ME, and I'm pretty sure I've never been on I-95 between Daytona Beach and Port St. Lucie in Florida.  Otherwise, I've driven the rest of it.

I-66:  Never been on most of it inside the beltway, other than a small section crossing over the Potomac into DC.

[Hobart]

At this point, I think mine is Interstate 190 in Illinois, the short spur from Interstate 90 into O' Hare Airport.

Being from the south side, my family approaches Interstate 190 from Interstate 294, rather than joining it from Interstate 90 (the Kennedy Expressway). We always go west on 190. This leaves a whopping 2,000 feet of Interstate 190 to the east that I haven't traveled, which encompasses a single partial cloverleaf and the interchange with Interstate 90.

[CoreySamson]

I am not close at all to clinching any 2dis at the moment, but here are my closest via percentage:

I-10: 39% (everything from I-410 in San Antonio to I-75 in Florida, except for most of I-10 inside I-610 in Houston and the section between New Orleans and Slidell)
I-30: 38% (everything from I-369 in Texarkana to I-440 in Little Rock)
I-55: 35% (everything from I-12 in Louisiana to I-240 in Memphis, as well as the I-40/I-55 concurrency)

For 3dis, I get this:
I-610 (TX): 79% (just missing the NE quadrant)
I-240 (TN): 70% (just missing the eastern section)

[MikieTimT]

I-49, in about a month.  Until Louisiana or Arkansas hit the lottery and make more of it.